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13 <pre>
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14 <a name="package-DBUtil-"></a> 1 <span class="k">package </span><span class="i">DBUtil</span><span class="sc">;</span>
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15 2 <span class="c">#</span>
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16 3 <span class="c"># $RCSfile: DBUtil.pm,v $</span>
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17 4 <span class="c"># $Date: 2015/02/28 20:47:02 $</span>
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18 5 <span class="c"># $Revision: 1.34 $</span>
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19 6 <span class="c">#</span>
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20 7 <span class="c"># Author: Manish Sud <msud@san.rr.com></span>
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21 8 <span class="c">#</span>
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22 9 <span class="c"># Copyright (C) 2015 Manish Sud. All rights reserved.</span>
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23 10 <span class="c">#</span>
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24 11 <span class="c"># This file is part of MayaChemTools.</span>
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25 12 <span class="c">#</span>
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26 13 <span class="c"># MayaChemTools is free software; you can redistribute it and/or modify it under</span>
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27 14 <span class="c"># the terms of the GNU Lesser General Public License as published by the Free</span>
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28 15 <span class="c"># Software Foundation; either version 3 of the License, or (at your option) any</span>
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29 16 <span class="c"># later version.</span>
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30 17 <span class="c">#</span>
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31 18 <span class="c"># MayaChemTools is distributed in the hope that it will be useful, but without</span>
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32 19 <span class="c"># any warranty; without even the implied warranty of merchantability of fitness</span>
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33 20 <span class="c"># for a particular purpose. See the GNU Lesser General Public License for more</span>
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34 21 <span class="c"># details.</span>
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35 22 <span class="c">#</span>
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36 23 <span class="c"># You should have received a copy of the GNU Lesser General Public License</span>
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37 24 <span class="c"># along with MayaChemTools; if not, see <http://www.gnu.org/licenses/> or</span>
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38 25 <span class="c"># write to the Free Software Foundation Inc., 59 Temple Place, Suite 330,</span>
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39 26 <span class="c"># Boston, MA, 02111-1307, USA.</span>
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40 27 <span class="c">#</span>
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41 28
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42 29 <span class="k">use</span> <span class="w">strict</span><span class="sc">;</span>
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43 30 <span class="k">use</span> <span class="w">Exporter</span><span class="sc">;</span>
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44 31 <span class="k">use</span> <span class="w">Carp</span><span class="sc">;</span>
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45 32 <span class="k">use</span> <span class="w">DBI</span><span class="sc">;</span>
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46 33 <span class="k">use</span> <span class="w">TextUtil</span><span class="sc">;</span>
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47 34
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48 35 <span class="k">use</span> <span class="w">vars</span> <span class="q">qw(@ISA @EXPORT @EXPORT_OK %EXPORT_TAGS)</span><span class="sc">;</span>
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49 36
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50 37 <span class="i">@ISA</span> = <span class="q">qw(Exporter)</span><span class="sc">;</span>
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51 38 <span class="i">@EXPORT</span> = <span class="q">qw(DBConnect DBDisconnect DBFetchSchemaTableNames DBSetupDescribeSQL DBSetupSelectSQL DBSQLToTextFile)</span><span class="sc">;</span>
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52 39 <span class="i">@EXPORT_OK</span> = <span class="q">qw()</span><span class="sc">;</span>
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53 40 <span class="i">%EXPORT_TAGS</span> = <span class="s">(</span><span class="w">all</span> <span class="cm">=></span> <span class="s">[</span><span class="i">@EXPORT</span><span class="cm">,</span> <span class="i">@EXPORT_OK</span><span class="s">]</span><span class="s">)</span><span class="sc">;</span>
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54 41
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55 42 <span class="c"># Connect to a specified database...</span>
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56 <a name="DBConnect-"></a> 43 <span class="k">sub </span><span class="m">DBConnect</span> <span class="s">{</span>
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57 44 <span class="k">my</span><span class="s">(</span><span class="i">$DBDriver</span><span class="cm">,</span> <span class="i">$DBName</span><span class="cm">,</span> <span class="i">$DBHost</span><span class="cm">,</span> <span class="i">$DBUser</span><span class="cm">,</span> <span class="i">$DBPassword</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span>
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58 45 <span class="k">my</span><span class="s">(</span><span class="i">$DBHandle</span><span class="cm">,</span> <span class="i">$DataSource</span><span class="s">)</span><span class="sc">;</span>
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59 46
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60 47 <span class="k">if</span> <span class="s">(</span><span class="i">$DBDriver</span> <span class="k">eq</span> <span class="q">"Oracle"</span><span class="s">)</span> <span class="s">{</span>
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61 48 <span class="i">$DataSource</span> = <span class="q">qq(DBI:$DBDriver:$DBHost)</span><span class="sc">;</span>
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62 49 <span class="s">}</span>
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63 50 <span class="k">else</span> <span class="s">{</span>
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64 51 <span class="i">$DataSource</span> = <span class="q">qq(DBI:$DBDriver:database=$DBName)</span><span class="sc">;</span>
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65 52 <span class="k">if</span> <span class="s">(</span><span class="i">$DBHost</span><span class="s">)</span> <span class="s">{</span>
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66 53 <span class="i">$DataSource</span> .= <span class="q">qq(;host=$DBHost)</span><span class="sc">;</span>
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67 54 <span class="s">}</span>
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68 55 <span class="s">}</span>
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69 56
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70 57 <span class="c"># Don't raise the error; otherwise, DBI functions termiates on encountering an error.</span>
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71 58 <span class="c"># All terminations decisions are made outside of DBI functions...</span>
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72 59 <span class="i">$DBHandle</span> = <span class="w">DBI</span><span class="w">->connect</span><span class="s">(</span><span class="i">$DataSource</span><span class="cm">,</span> <span class="i">$DBUser</span><span class="cm">,</span> <span class="i">$DBPassword</span><span class="cm">,</span> <span class="s">{</span> <span class="w">RaiseError</span> <span class="cm">=></span> <span class="n">0</span><span class="cm">,</span> <span class="w">AutoCommit</span> <span class="cm">=></span> <span class="n">0</span> <span class="s">}</span><span class="s">)</span> <span class="k">or</span> <span class="w">croak</span> <span class="q">"Couldn't connect to database..."</span><span class="sc">;</span>
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73 60
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74 61 <span class="k">return</span> <span class="i">$DBHandle</span><span class="sc">;</span>
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75 62 <span class="s">}</span>
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76 63
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77 64 <span class="c"># Disconnect from a database...</span>
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78 <a name="DBDisconnect-"></a> 65 <span class="k">sub </span><span class="m">DBDisconnect</span> <span class="s">{</span>
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79 66 <span class="k">my</span><span class="s">(</span><span class="i">$DBHandle</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span>
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80 67
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81 68 <span class="i">$DBHandle</span><span class="i">->disconnect</span> <span class="k">or</span> <span class="w">carp</span> <span class="q">"Couldn't disconnect from a database..."</span><span class="sc">;</span>
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82 69 <span class="s">}</span>
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83 70
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84 71 <span class="c"># Fetch all table name for a database schema...</span>
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85 <a name="DBFetchSchemaTableNames-"></a> 72 <span class="k">sub </span><span class="m">DBFetchSchemaTableNames</span> <span class="s">{</span>
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86 73 <span class="k">my</span><span class="s">(</span><span class="i">$DBDriver</span><span class="cm">,</span> <span class="i">$DBHandle</span><span class="cm">,</span> <span class="i">$SchemaName</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span>
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87 74 <span class="k">my</span><span class="s">(</span><span class="i">@SchemaTableNames</span><span class="cm">,</span> <span class="i">$SQL</span><span class="cm">,</span> <span class="i">$SQLHandle</span><span class="s">)</span><span class="sc">;</span>
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88 75
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89 76 <span class="i">@SchemaTableNames</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span>
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90 77
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91 78 <span class="i">$SchemaName</span> = <span class="s">(</span><span class="k">defined</span> <span class="i">$SchemaName</span> && <span class="k">length</span> <span class="i">$SchemaName</span><span class="s">)</span> ? <span class="i">$SchemaName</span> <span class="co">:</span> <span class="q">""</span><span class="sc">;</span>
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92 79
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93 80 <span class="k">if</span> <span class="s">(</span><span class="i">$DBDriver</span> <span class="k">eq</span> <span class="q">"mysql"</span><span class="s">)</span> <span class="s">{</span>
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94 81 <span class="c"># Switch schemas...</span>
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95 82 <span class="i">$SQL</span> = <span class="q">qq(USE $SchemaName)</span><span class="sc">;</span>
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96 83 <span class="i">$SQLHandle</span> = <span class="i">$DBHandle</span><span class="i">->prepare</span><span class="s">(</span><span class="i">$SQL</span><span class="s">)</span> <span class="k">or</span> <span class="k">return</span> <span class="i">@SchemaTableNames</span><span class="sc">;</span>
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97 84 <span class="i">$SQLHandle</span><span class="i">->execute</span> <span class="k">or</span> <span class="k">return</span> <span class="i">@SchemaTableNames</span><span class="sc">;</span>
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98 85 <span class="i">$SQLHandle</span><span class="i">->finish</span> <span class="k">or</span> <span class="k">return</span> <span class="i">@SchemaTableNames</span><span class="sc">;</span>
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99 86
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100 87 <span class="c"># Setup to fetch table names...</span>
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101 88 <span class="i">$SQL</span> = <span class="q">qq(SHOW TABLES)</span><span class="sc">;</span>
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102 89 <span class="s">}</span>
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103 90 <span class="k">elsif</span> <span class="s">(</span><span class="i">$DBDriver</span> <span class="k">eq</span> <span class="q">"Oracle"</span><span class="s">)</span> <span class="s">{</span>
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104 91 <span class="i">$SQL</span> = <span class="q">qq(SELECT SEGMENT_NAME FROM DBA_SEGMENTS WHERE OWNER = '$SchemaName' AND SEGMENT_TYPE = 'TABLE' ORDER BY SEGMENT_NAME)</span><span class="sc">;</span>
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105 92 <span class="s">}</span>
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106 93 <span class="k">elsif</span> <span class="s">(</span><span class="i">$DBDriver</span> =~ <span class="q">/^(Pg|Postgres)$/i</span><span class="s">)</span> <span class="s">{</span>
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107 94 <span class="i">$SQL</span> = <span class="q">qq(SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = '$SchemaName')</span><span class="sc">;</span>
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108 95 <span class="s">}</span>
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109 96 <span class="i">$SQLHandle</span> = <span class="i">$DBHandle</span><span class="i">->prepare</span><span class="s">(</span><span class="i">$SQL</span><span class="s">)</span> <span class="k">or</span> <span class="k">return</span> <span class="i">@SchemaTableNames</span><span class="sc">;</span>
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110 97 <span class="i">$SQLHandle</span><span class="i">->execute</span> <span class="k">or</span> <span class="k">return</span> <span class="i">@SchemaTableNames</span><span class="sc">;</span>
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111 98
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112 99 <span class="k">my</span><span class="s">(</span><span class="i">@RowValues</span><span class="cm">,</span> <span class="i">$TableName</span><span class="s">)</span><span class="sc">;</span>
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113 100 <span class="k">while</span> <span class="s">(</span><span class="i">@RowValues</span> = <span class="i">$SQLHandle</span><span class="i">->fetchrow_array</span><span class="s">)</span> <span class="s">{</span>
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114 101 <span class="i">$TableName</span> = <span class="s">(</span><span class="i">$DBDriver</span> =~ <span class="q">/^(mysql|Oracle)$/i</span><span class="s">)</span> ? <span class="k">uc</span><span class="s">(</span><span class="i">$RowValues</span>[<span class="n">0</span>]<span class="s">)</span> <span class="co">:</span> <span class="i">$RowValues</span>[<span class="n">0</span>]<span class="sc">;</span>
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115 102 <span class="k">if</span> <span class="s">(</span><span class="k">defined</span> <span class="i">$TableName</span> && <span class="k">length</span> <span class="i">$TableName</span><span class="s">)</span> <span class="s">{</span>
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116 103 <span class="k">push</span> <span class="i">@SchemaTableNames</span><span class="cm">,</span> <span class="i">$TableName</span><span class="sc">;</span>
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117 104 <span class="s">}</span>
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118 105 <span class="s">}</span>
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119 106 <span class="i">$SQLHandle</span><span class="i">->finish</span> <span class="k">or</span> <span class="k">return</span> <span class="i">@SchemaTableNames</span><span class="sc">;</span>
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120 107
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121 108 <span class="k">return</span> <span class="i">@SchemaTableNames</span><span class="sc">;</span>
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122 109 <span class="s">}</span>
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123 110
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124 111 <span class="c"># Setup describe SQL statement...</span>
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125 <a name="DBSetupDescribeSQL-"></a> 112 <span class="k">sub </span><span class="m">DBSetupDescribeSQL</span> <span class="s">{</span>
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126 113 <span class="k">my</span><span class="s">(</span><span class="i">$DBDriver</span><span class="cm">,</span> <span class="i">$TableName</span><span class="cm">,</span> <span class="i">$SchemaName</span><span class="s">)</span><span class="sc">;</span>
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127 114 <span class="k">my</span><span class="s">(</span><span class="i">$DescribeSQL</span><span class="s">)</span><span class="sc">;</span>
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128 115
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129 116 <span class="i">$DBDriver</span> = <span class="q">""</span><span class="sc">;</span> <span class="i">$TableName</span> = <span class="q">""</span><span class="sc">;</span> <span class="i">$SchemaName</span> = <span class="q">""</span><span class="sc">;</span>
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130 117 <span class="k">if</span> <span class="s">(</span><span class="i">@_</span> == <span class="n">3</span><span class="s">)</span> <span class="s">{</span>
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131 118 <span class="s">(</span><span class="i">$DBDriver</span><span class="cm">,</span> <span class="i">$TableName</span><span class="cm">,</span> <span class="i">$SchemaName</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span>
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132 119 <span class="s">}</span>
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133 120 <span class="k">else</span> <span class="s">{</span>
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134 121 <span class="s">(</span><span class="i">$DBDriver</span><span class="cm">,</span> <span class="i">$TableName</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span>
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135 122 <span class="s">}</span>
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136 123 <span class="i">$TableName</span> = <span class="s">(</span><span class="k">defined</span> <span class="i">$TableName</span> && <span class="k">length</span> <span class="i">$TableName</span><span class="s">)</span> ? <span class="i">$TableName</span> <span class="co">:</span> <span class="q">""</span><span class="sc">;</span>
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137 124 <span class="i">$SchemaName</span> = <span class="s">(</span><span class="k">defined</span> <span class="i">$SchemaName</span> && <span class="k">length</span> <span class="i">$SchemaName</span><span class="s">)</span> ? <span class="i">$SchemaName</span> <span class="co">:</span> <span class="q">""</span><span class="sc">;</span>
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138 125
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139 126 <span class="i">$DescribeSQL</span> = <span class="s">(</span><span class="i">$SchemaName</span><span class="s">)</span> ? <span class="s">(</span><span class="q">"DESCRIBE "</span> . <span class="q">"$SchemaName"</span> . <span class="q">".$TableName"</span><span class="s">)</span> <span class="co">:</span> <span class="q">"DESCRIBE $TableName"</span><span class="sc">;</span>
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140 127
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141 128 <span class="k">if</span> <span class="s">(</span><span class="i">$DBDriver</span> <span class="k">eq</span> <span class="q">"Oracle"</span><span class="s">)</span> <span class="s">{</span>
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142 129 <span class="i">$DescribeSQL</span> = <span class="q">qq(SELECT COLUMN_NAME "Column_Name", DECODE(NULLABLE, 'N','Not Null','Y','Null') "Null", DATA_TYPE "Data_Type", DATA_LENGTH "Data_Length", DATA_PRECISION "Data_Precision" FROM DBA_TAB_COLUMNS WHERE TABLE_NAME = '$TableName')</span><span class="sc">;</span>
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143 130 <span class="k">if</span> <span class="s">(</span><span class="i">$SchemaName</span><span class="s">)</span> <span class="s">{</span>
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144 131 <span class="i">$DescribeSQL</span> .= <span class="q">qq( AND OWNER = '$SchemaName')</span><span class="sc">;</span>
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145 132 <span class="s">}</span>
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146 133 <span class="i">$DescribeSQL</span> .= <span class="q">qq( ORDER BY COLUMN_ID)</span><span class="sc">;</span>
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147 134 <span class="s">}</span>
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148 135 <span class="k">elsif</span> <span class="s">(</span><span class="i">$DBDriver</span> =~ <span class="q">/^(Pg|Postgres)$/i</span><span class="s">)</span> <span class="s">{</span>
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149 136 <span class="i">$DescribeSQL</span> = <span class="q">qq(SELECT COLUMN_NAME "Column_Name", data_type "Data_Type" FROM information_schema.columns WHERE table_name ='$TableName')</span><span class="sc">;</span>
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150 137 <span class="k">if</span> <span class="s">(</span><span class="i">$SchemaName</span><span class="s">)</span> <span class="s">{</span>
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151 138 <span class="i">$DescribeSQL</span> .= <span class="q">" and table_schema = '$SchemaName'"</span><span class="sc">;</span>
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152 139 <span class="s">}</span>
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153 140 <span class="s">}</span>
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154 141
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155 142 <span class="k">return</span> <span class="i">$DescribeSQL</span><span class="sc">;</span>
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156 143 <span class="s">}</span>
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157 144
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158 145 <span class="c"># Setup describe SQL statement...</span>
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159 <a name="DBSetupSelectSQL-"></a> 146 <span class="k">sub </span><span class="m">DBSetupSelectSQL</span> <span class="s">{</span>
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160 147 <span class="k">my</span><span class="s">(</span><span class="i">$DBDriver</span><span class="cm">,</span> <span class="i">$TableName</span><span class="cm">,</span> <span class="i">$SchemaName</span><span class="s">)</span><span class="sc">;</span>
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161 148 <span class="k">my</span><span class="s">(</span><span class="i">$SelectSQL</span><span class="s">)</span><span class="sc">;</span>
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162 149
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163 150 <span class="i">$DBDriver</span> = <span class="q">""</span><span class="sc">;</span> <span class="i">$TableName</span> = <span class="q">""</span><span class="sc">;</span> <span class="i">$SchemaName</span> = <span class="q">""</span><span class="sc">;</span>
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164 151 <span class="k">if</span> <span class="s">(</span><span class="i">@_</span> == <span class="n">3</span><span class="s">)</span> <span class="s">{</span>
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165 152 <span class="s">(</span><span class="i">$DBDriver</span><span class="cm">,</span> <span class="i">$TableName</span><span class="cm">,</span> <span class="i">$SchemaName</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span>
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166 153 <span class="s">}</span>
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167 154 <span class="k">else</span> <span class="s">{</span>
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168 155 <span class="s">(</span><span class="i">$DBDriver</span><span class="cm">,</span> <span class="i">$TableName</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span>
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169 156 <span class="s">}</span>
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170 157 <span class="i">$TableName</span> = <span class="s">(</span><span class="k">defined</span> <span class="i">$TableName</span> && <span class="k">length</span> <span class="i">$TableName</span><span class="s">)</span> ? <span class="i">$TableName</span> <span class="co">:</span> <span class="q">""</span><span class="sc">;</span>
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171 158 <span class="i">$SchemaName</span> = <span class="s">(</span><span class="k">defined</span> <span class="i">$SchemaName</span> && <span class="k">length</span> <span class="i">$SchemaName</span><span class="s">)</span> ? <span class="i">$SchemaName</span> <span class="co">:</span> <span class="q">""</span><span class="sc">;</span>
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172 159
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173 160 <span class="i">$SelectSQL</span> = <span class="s">(</span><span class="i">$SchemaName</span><span class="s">)</span> ? <span class="s">(</span><span class="q">"SELECT * FROM "</span> . <span class="q">"$SchemaName"</span> . <span class="q">".$TableName"</span><span class="s">)</span> <span class="co">:</span> <span class="q">"SELECT * FROM $TableName"</span><span class="sc">;</span>
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174 161
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175 162 <span class="k">return</span> <span class="i">$SelectSQL</span><span class="sc">;</span>
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176 163 <span class="s">}</span>
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177 164
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178 165 <span class="c"># Prepare and execute a SQL statement and write out results into</span>
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179 166 <span class="c"># a text file.</span>
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180 <a name="DBSQLToTextFile-"></a> 167 <span class="k">sub </span><span class="m">DBSQLToTextFile</span> <span class="s">{</span>
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181 168 <span class="k">my</span><span class="s">(</span><span class="i">$DBHandle</span><span class="cm">,</span> <span class="i">$SQL</span><span class="cm">,</span> <span class="i">$TextFile</span><span class="cm">,</span> <span class="i">$OutDelim</span><span class="cm">,</span> <span class="i">$OutQuote</span><span class="cm">,</span> <span class="i">$ExportDataLabels</span><span class="cm">,</span> <span class="i">$ExportLOBs</span><span class="cm">,</span> <span class="i">$ReplaceNullStr</span><span class="s">)</span><span class="sc">;</span>
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182 169 <span class="k">my</span><span class="s">(</span><span class="i">$SQLHandle</span><span class="cm">,</span> <span class="i">$Status</span><span class="s">)</span><span class="sc">;</span>
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183 170
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184 171 <span class="i">$Status</span> = <span class="n">1</span><span class="sc">;</span>
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185 172 <span class="i">$ExportDataLabels</span> = <span class="n">1</span><span class="sc">;</span>
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186 173 <span class="i">$ExportLOBs</span> = <span class="n">0</span><span class="sc">;</span>
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187 174 <span class="i">$ReplaceNullStr</span> = <span class="q">""</span><span class="sc">;</span>
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188 175 <span class="k">if</span> <span class="s">(</span><span class="i">@_</span> == <span class="n">8</span><span class="s">)</span> <span class="s">{</span>
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189 176 <span class="s">(</span><span class="i">$DBHandle</span><span class="cm">,</span> <span class="i">$SQL</span><span class="cm">,</span> <span class="i">$TextFile</span><span class="cm">,</span> <span class="i">$OutDelim</span><span class="cm">,</span> <span class="i">$OutQuote</span><span class="cm">,</span> <span class="i">$ExportDataLabels</span><span class="cm">,</span> <span class="i">$ExportLOBs</span><span class="cm">,</span> <span class="i">$ReplaceNullStr</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span>
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190 177 <span class="s">}</span>
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191 178 <span class="k">elsif</span> <span class="s">(</span><span class="i">@_</span> == <span class="n">7</span><span class="s">)</span> <span class="s">{</span>
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|
192 179 <span class="s">(</span><span class="i">$DBHandle</span><span class="cm">,</span> <span class="i">$SQL</span><span class="cm">,</span> <span class="i">$TextFile</span><span class="cm">,</span> <span class="i">$OutDelim</span><span class="cm">,</span> <span class="i">$OutQuote</span><span class="cm">,</span> <span class="i">$ExportDataLabels</span><span class="cm">,</span> <span class="i">$ExportLOBs</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span>
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|
193 180 <span class="s">}</span>
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|
194 181 <span class="k">elsif</span> <span class="s">(</span><span class="i">@_</span> == <span class="n">6</span><span class="s">)</span> <span class="s">{</span>
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|
195 182 <span class="s">(</span><span class="i">$DBHandle</span><span class="cm">,</span> <span class="i">$SQL</span><span class="cm">,</span> <span class="i">$TextFile</span><span class="cm">,</span> <span class="i">$OutDelim</span><span class="cm">,</span> <span class="i">$OutQuote</span><span class="cm">,</span> <span class="i">$ExportDataLabels</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span>
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|
196 183 <span class="s">}</span>
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|
197 184 <span class="k">else</span> <span class="s">{</span>
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|
198 185 <span class="s">(</span><span class="i">$DBHandle</span><span class="cm">,</span> <span class="i">$SQL</span><span class="cm">,</span> <span class="i">$TextFile</span><span class="cm">,</span> <span class="i">$OutDelim</span><span class="cm">,</span> <span class="i">$OutQuote</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span>
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|
199 186 <span class="s">}</span>
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200 187
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|
201 188 <span class="c"># Execute SQL statement...</span>
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|
|
202 189 <span class="i">$SQLHandle</span> = <span class="i">$DBHandle</span><span class="i">->prepare</span><span class="s">(</span><span class="i">$SQL</span><span class="s">)</span> <span class="k">or</span> <span class="k">return</span> <span class="i">$Status</span><span class="sc">;</span>
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|
203 190 <span class="i">$SQLHandle</span><span class="i">->execute</span><span class="s">(</span><span class="s">)</span> <span class="k">or</span> <span class="k">return</span> <span class="i">$Status</span><span class="sc">;</span>
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204 191
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|
205 192 <span class="k">my</span><span class="s">(</span><span class="i">$FieldsNum</span><span class="cm">,</span> <span class="i">@FieldNames</span><span class="cm">,</span> <span class="i">@RowValues</span><span class="cm">,</span> <span class="i">@ColNumsToExport</span><span class="cm">,</span> <span class="i">@ColLabels</span><span class="cm">,</span> <span class="i">$ColNum</span><span class="cm">,</span> <span class="i">$ColLabelsLine</span><span class="cm">,</span> <span class="i">@Values</span><span class="cm">,</span> <span class="i">$Value</span><span class="cm">,</span> <span class="i">$ValuesLine</span><span class="s">)</span><span class="sc">;</span>
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|
|
206 193
|
|
|
207 194 <span class="i">$Status</span> = <span class="n">0</span><span class="sc">;</span>
|
|
|
208 195 <span class="c"># Figure out which column numbers need to be exported...</span>
|
|
|
209 196 <span class="i">$FieldsNum</span> = <span class="i">$SQLHandle</span>->{<span class="w">NUM_OF_FIELDS</span>}<span class="sc">;</span>
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|
|
210 197 <span class="i">@FieldNames</span> = <span class="i">@</span>{<span class="i">$SQLHandle</span>->{<span class="w">NAME</span>}}<span class="sc">;</span>
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|
|
211 198 <span class="i">@ColNumsToExport</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span>
|
|
|
212 199 <span class="k">if</span> <span class="s">(</span><span class="i">$ExportLOBs</span><span class="s">)</span> <span class="s">{</span>
|
|
|
213 200 <span class="i">@ColNumsToExport</span> = <span class="s">(</span><span class="n">0</span> .. <span class="i">$#FieldNames</span><span class="s">)</span><span class="sc">;</span>
|
|
|
214 201 <span class="s">}</span>
|
|
|
215 202 <span class="k">else</span> <span class="s">{</span>
|
|
|
216 203 <span class="k">my</span><span class="s">(</span><span class="i">@FieldTypes</span><span class="cm">,</span> <span class="i">@FieldTypeNames</span><span class="cm">,</span> <span class="i">$Type</span><span class="cm">,</span> <span class="i">$TypeName</span><span class="s">)</span><span class="sc">;</span>
|
|
|
217 204 <span class="i">@FieldTypes</span> = <span class="i">@</span>{<span class="i">$SQLHandle</span>->{<span class="w">TYPE</span>}}<span class="sc">;</span>
|
|
|
218 205 <span class="i">@FieldTypeNames</span> = <span class="k">map</span> <span class="s">{</span> <span class="k">scalar</span> <span class="i">$DBHandle</span><span class="i">->type_info</span><span class="s">(</span><span class="i">$_</span><span class="s">)</span>->{<span class="w">TYPE_NAME</span>} <span class="s">}</span> <span class="i">@FieldTypes</span><span class="sc">;</span>
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|
|
219 206 <span class="k">for</span> <span class="i">$ColNum</span> <span class="s">(</span><span class="n">0</span> .. <span class="i">$#FieldNames</span><span class="s">)</span> <span class="s">{</span>
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|
|
220 207 <span class="k">if</span> <span class="s">(</span><span class="i">$FieldTypeNames</span>[<span class="i">$ColNum</span>] !~ <span class="q">/lob|bytea/i</span> <span class="s">)</span> <span class="s">{</span>
|
|
|
221 208 <span class="k">push</span> <span class="i">@ColNumsToExport</span><span class="cm">,</span> <span class="i">$ColNum</span><span class="sc">;</span>
|
|
|
222 209 <span class="s">}</span>
|
|
|
223 210 <span class="s">}</span>
|
|
|
224 211 <span class="s">}</span>
|
|
|
225 212
|
|
|
226 213 <span class="k">if</span> <span class="s">(</span><span class="i">$ExportDataLabels</span><span class="s">)</span> <span class="s">{</span>
|
|
|
227 214 <span class="c"># Print out column labels...</span>
|
|
|
228 215 <span class="i">@ColLabels</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span>
|
|
|
229 216 <span class="k">for</span> <span class="i">$ColNum</span> <span class="s">(</span><span class="i">@ColNumsToExport</span><span class="s">)</span> <span class="s">{</span>
|
|
|
230 217 <span class="k">push</span> <span class="i">@ColLabels</span><span class="cm">,</span> <span class="i">$FieldNames</span>[<span class="i">$ColNum</span>]<span class="sc">;</span>
|
|
|
231 218 <span class="s">}</span>
|
|
|
232 219 <span class="i">$ColLabelsLine</span> = <span class="i">JoinWords</span><span class="s">(</span>\<span class="i">@ColLabels</span><span class="cm">,</span> <span class="i">$OutDelim</span><span class="cm">,</span> <span class="i">$OutQuote</span><span class="s">)</span><span class="sc">;</span>
|
|
|
233 220 <span class="k">print</span> <span class="i">$TextFile</span> <span class="q">"$ColLabelsLine\n"</span><span class="sc">;</span>
|
|
|
234 221 <span class="s">}</span>
|
|
|
235 222 <span class="c"># Print out row values...</span>
|
|
|
236 223 <span class="k">while</span> <span class="s">(</span><span class="i">@RowValues</span> = <span class="i">$SQLHandle</span><span class="i">->fetchrow_array</span><span class="s">)</span> <span class="s">{</span>
|
|
|
237 224 <span class="i">@Values</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span>
|
|
|
238 225 <span class="k">for</span> <span class="i">$ColNum</span> <span class="s">(</span><span class="i">@ColNumsToExport</span><span class="s">)</span> <span class="s">{</span>
|
|
|
239 226 <span class="k">if</span> <span class="s">(</span><span class="k">defined</span><span class="s">(</span><span class="i">$RowValues</span>[<span class="i">$ColNum</span>]<span class="s">)</span> && <span class="k">length</span><span class="s">(</span><span class="i">$RowValues</span>[<span class="i">$ColNum</span>]<span class="s">)</span><span class="s">)</span> <span class="s">{</span>
|
|
|
240 227 <span class="i">$Value</span> = <span class="i">$RowValues</span>[<span class="i">$ColNum</span>]<span class="sc">;</span>
|
|
|
241 228 <span class="s">}</span>
|
|
|
242 229 <span class="k">else</span> <span class="s">{</span>
|
|
|
243 230 <span class="i">$Value</span> = <span class="i">$ReplaceNullStr</span> ? <span class="i">$ReplaceNullStr</span> <span class="co">:</span> <span class="q">""</span><span class="sc">;</span>
|
|
|
244 231 <span class="s">}</span>
|
|
|
245 232 <span class="k">push</span> <span class="i">@Values</span><span class="cm">,</span> <span class="i">$Value</span><span class="sc">;</span>
|
|
|
246 233 <span class="s">}</span>
|
|
|
247 234 <span class="i">$ValuesLine</span> = <span class="i">JoinWords</span><span class="s">(</span>\<span class="i">@Values</span><span class="cm">,</span> <span class="i">$OutDelim</span><span class="cm">,</span> <span class="i">$OutQuote</span><span class="s">)</span><span class="sc">;</span>
|
|
|
248 235 <span class="k">print</span> <span class="i">$TextFile</span> <span class="q">"$ValuesLine\n"</span><span class="sc">;</span>
|
|
|
249 236 <span class="s">}</span>
|
|
|
250 237 <span class="i">$SQLHandle</span><span class="i">->finish</span> <span class="k">or</span> <span class="k">return</span> <span class="i">$Status</span><span class="sc">;</span>
|
|
|
251 238 <span class="i">$Status</span> = <span class="n">0</span><span class="sc">;</span>
|
|
|
252 239
|
|
|
253 240 <span class="k">return</span> <span class="i">$Status</span><span class="sc">;</span>
|
|
|
254 241 <span class="s">}</span>
|
|
|
255 242
|
|
|
256 <a name="EOF-"></a></pre>
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257 <p> </p>
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258 <br />
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259 <center>
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260 <img src="../../../images/h2o2.png">
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261 </center>
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262 </body>
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263 </html>
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