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124 .\" ========================================================================
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125 .\"
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126 .IX Title "DBUTIL 1"
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127 .TH DBUTIL 1 "2015-03-29" "perl v5.14.2" "MayaChemTools"
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128 .\" For nroff, turn off justification. Always turn off hyphenation; it makes
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129 .\" way too many mistakes in technical documents.
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130 .if n .ad l
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131 .nh
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132 .SH "NAME"
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133 DBUtil
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134 .SH "SYNOPSIS"
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135 .IX Header "SYNOPSIS"
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136 use DBUtil;
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137 .PP
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138 use DBUtil qw(:all);
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139 .SH "DESCRIPTION"
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140 .IX Header "DESCRIPTION"
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141 \&\fBDBUtil\fR module provides the following functions:
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142 .PP
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143 DBConnect, DBDisconnect, DBFetchSchemaTableNames, DBSQLToTextFile,
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144 DBSetupDescribeSQL, DBSetupSelectSQL
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145 .PP
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146 DBUtil package uses Perl \s-1DBI\s0 for interacting with MySQL Oracle, and PostgreSQL
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147 databases.
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148 .SH "FUNCTIONS"
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149 .IX Header "FUNCTIONS"
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150 .IP "\fBDBConnect\fR" 4
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151 .IX Item "DBConnect"
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152 .Vb 1
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153 \& $DBHandle = DBConnect($DBDriver, $DBName, $DBHost, $DBUser, $DBPassword);
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154 .Ve
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155 .Sp
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156 Connects to a database using specified parameters and returns a \fBDBHandle\fR.
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157 .IP "\fBDBDisconnect\fR" 4
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158 .IX Item "DBDisconnect"
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159 .Vb 1
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160 \& DBDisconnect($DBHandle);
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161 .Ve
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162 .Sp
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163 Disconnects from a database specified by \fIDBHandle\fR.
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164 .IP "\fBDBFetchSchemaTableNames\fR" 4
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165 .IX Item "DBFetchSchemaTableNames"
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166 .Vb 2
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167 \& @SchemaTableNames = DBFetchSchemaTableNames($DBDriver, $DBHandle,
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168 \& $SchemaName);
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169 .Ve
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170 .Sp
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171 Returns an array of all the table names in a database \fISchemaName\fR.
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172 .IP "\fBDBSetupDescribeSQL\fR" 4
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173 .IX Item "DBSetupDescribeSQL"
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174 .Vb 1
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175 \& $DescribeSQL = DBSetupDescribeSQL($DBDriver, $TableName, [$SchemaName]);
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176 .Ve
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177 .Sp
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178 Sets up and returns a \s-1SQL\s0 statement to describe a table for MySQ, Oracle or PostgreSQL.
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179 .IP "\fBDBSetupSelectSQL\fR" 4
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180 .IX Item "DBSetupSelectSQL"
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181 .Vb 1
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182 \& $SelectSQL = DBSetupSelectSQL($DBDriver, $TableName, $SchemaName);
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183 .Ve
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184 .Sp
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185 Sets up and returns a \s-1SQL\s0 statement to retrieve all columns from a table for MySQL,
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186 Oracle, or PostgreSQL.
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187 .IP "\fBDBSQLToTextFile\fR" 4
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188 .IX Item "DBSQLToTextFile"
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189 .Vb 3
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190 \& $Status = DBSQLToTextFile($DBHandle, $SQL, \e*TEXTFILE, $OutDelim,
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191 \& $OutQuote, [$ExportDataLabels, $ExportLOBs,
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192 \& $ReplaceNullStr]);
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193 .Ve
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194 .Sp
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195 Executes a \fI\s-1SQL\s0\fR statement and export all data into a text file.
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196 .SH "AUTHOR"
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197 .IX Header "AUTHOR"
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198 Manish Sud <msud@san.rr.com>
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199 .SH "COPYRIGHT"
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200 .IX Header "COPYRIGHT"
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201 Copyright (C) 2015 Manish Sud. All rights reserved.
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202 .PP
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203 This file is part of MayaChemTools.
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204 .PP
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205 MayaChemTools is free software; you can redistribute it and/or modify it under
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206 the terms of the \s-1GNU\s0 Lesser General Public License as published by the Free
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207 Software Foundation; either version 3 of the License, or (at your option)
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208 any later version.
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