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369 lines
9.8 KiB
369 lines
9.8 KiB
<?php
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/**
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@version v5.20.9 21-Dec-2016
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@copyright (c) 2000-2013 John Lim (jlim#natsoft.com). All rights reserved.
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@copyright (c) 2014 Damien Regad, Mark Newnham and the ADOdb community
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Released under both BSD license and Lesser GPL library license.
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Whenever there is any discrepancy between the two licenses,
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the BSD license will take precedence.
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Set tabs to 4 for best viewing.
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*/
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/*
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In ADOdb, named quotes for MS SQL Server use ". From the MSSQL Docs:
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Note Delimiters are for identifiers only. Delimiters cannot be used for keywords,
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whether or not they are marked as reserved in SQL Server.
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Quoted identifiers are delimited by double quotation marks ("):
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SELECT * FROM "Blanks in Table Name"
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Bracketed identifiers are delimited by brackets ([ ]):
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SELECT * FROM [Blanks In Table Name]
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Quoted identifiers are valid only when the QUOTED_IDENTIFIER option is set to ON. By default,
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the Microsoft OLE DB Provider for SQL Server and SQL Server ODBC driver set QUOTED_IDENTIFIER ON
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when they connect.
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In Transact-SQL, the option can be set at various levels using SET QUOTED_IDENTIFIER,
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the quoted identifier option of sp_dboption, or the user options option of sp_configure.
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When SET ANSI_DEFAULTS is ON, SET QUOTED_IDENTIFIER is enabled.
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Syntax
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SET QUOTED_IDENTIFIER { ON | OFF }
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*/
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// security - hide paths
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if (!defined('ADODB_DIR')) die();
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class ADODB2_mssqlnative extends ADODB_DataDict {
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var $databaseType = 'mssqlnative';
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var $dropIndex = 'DROP INDEX %1$s ON %2$s';
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var $renameTable = "EXEC sp_rename '%s','%s'";
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var $renameColumn = "EXEC sp_rename '%s.%s','%s'";
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var $typeX = 'TEXT'; ## Alternatively, set it to VARCHAR(4000)
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var $typeXL = 'TEXT';
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//var $alterCol = ' ALTER COLUMN ';
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function MetaType($t,$len=-1,$fieldobj=false)
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{
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if (is_object($t)) {
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$fieldobj = $t;
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$t = $fieldobj->type;
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$len = $fieldobj->max_length;
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}
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$_typeConversion = array(
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-155 => 'D',
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93 => 'D',
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-154 => 'D',
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-2 => 'D',
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91 => 'D',
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12 => 'C',
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1 => 'C',
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-9 => 'C',
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-8 => 'C',
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-7 => 'L',
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-6 => 'I2',
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-5 => 'I8',
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-11 => 'I',
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4 => 'I',
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5 => 'I4',
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-1 => 'X',
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-10 => 'X',
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2 => 'N',
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3 => 'N',
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6 => 'N',
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7 => 'N',
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-152 => 'X',
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-151 => 'X',
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-4 => 'X',
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-3 => 'X'
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);
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return $_typeConversion($t);
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}
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function ActualType($meta)
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{
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$DATE_TYPE = 'DATETIME';
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switch(strtoupper($meta)) {
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case 'C': return 'VARCHAR';
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case 'XL': return (isset($this)) ? $this->typeXL : 'TEXT';
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case 'X': return (isset($this)) ? $this->typeX : 'TEXT'; ## could be varchar(8000), but we want compat with oracle
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case 'C2': return 'NVARCHAR';
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case 'X2': return 'NTEXT';
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case 'B': return 'IMAGE';
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case 'D': return $DATE_TYPE;
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case 'T': return 'TIME';
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case 'L': return 'BIT';
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case 'R':
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case 'I': return 'INT';
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case 'I1': return 'TINYINT';
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case 'I2': return 'SMALLINT';
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case 'I4': return 'INT';
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case 'I8': return 'BIGINT';
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case 'F': return 'REAL';
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case 'N': return 'NUMERIC';
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default:
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print "RETURN $meta";
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return $meta;
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}
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}
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function AddColumnSQL($tabname, $flds)
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{
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$tabname = $this->TableName ($tabname);
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$f = array();
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list($lines,$pkey) = $this->_GenFields($flds);
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$s = "ALTER TABLE $tabname $this->addCol";
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foreach($lines as $v) {
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$f[] = "\n $v";
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}
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$s .= implode(', ',$f);
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$sql[] = $s;
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return $sql;
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}
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function DefaultConstraintname($tabname, $colname)
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{
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$constraintname = false;
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$rs = $this->connection->Execute(
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"SELECT name FROM sys.default_constraints
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WHERE object_name(parent_object_id) = '$tabname'
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AND col_name(parent_object_id, parent_column_id) = '$colname'"
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);
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if ( is_object($rs) ) {
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$row = $rs->FetchRow();
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$constraintname = $row['name'];
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}
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return $constraintname;
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}
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function AlterColumnSQL($tabname, $flds, $tableflds='',$tableoptions='')
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{
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$tabname = $this->TableName ($tabname);
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$sql = array();
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list($lines,$pkey,$idxs) = $this->_GenFields($flds);
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$alter = 'ALTER TABLE ' . $tabname . $this->alterCol . ' ';
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foreach($lines as $v) {
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$not_null = false;
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if ($not_null = preg_match('/NOT NULL/i',$v)) {
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$v = preg_replace('/NOT NULL/i','',$v);
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}
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if (preg_match('/^([^ ]+) .*DEFAULT (\'[^\']+\'|\"[^\"]+\"|[^ ]+)/',$v,$matches)) {
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list(,$colname,$default) = $matches;
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$v = preg_replace('/^' . preg_quote($colname) . '\s/', '', $v);
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$t = trim(str_replace('DEFAULT '.$default,'',$v));
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if ( $constraintname = $this->DefaultConstraintname($tabname,$colname) ) {
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$sql[] = 'ALTER TABLE '.$tabname.' DROP CONSTRAINT '. $constraintname;
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}
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if ($not_null) {
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$sql[] = $alter . $colname . ' ' . $t . ' NOT NULL';
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} else {
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$sql[] = $alter . $colname . ' ' . $t ;
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}
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$sql[] = 'ALTER TABLE ' . $tabname
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. ' ADD CONSTRAINT DF__' . $tabname . '__' . $colname . '__' . dechex(rand())
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. ' DEFAULT ' . $default . ' FOR ' . $colname;
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} else {
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$colname = strtok($v," ");
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if ( $constraintname = $this->DefaultConstraintname($tabname,$colname) ) {
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$sql[] = 'ALTER TABLE '.$tabname.' DROP CONSTRAINT '. $constraintname;
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}
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if ($not_null) {
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$sql[] = $alter . $v . ' NOT NULL';
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} else {
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$sql[] = $alter . $v;
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}
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}
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}
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if (is_array($idxs)) {
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foreach($idxs as $idx => $idxdef) {
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$sql_idxs = $this->CreateIndexSql($idx, $tabname, $idxdef['cols'], $idxdef['opts']);
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$sql = array_merge($sql, $sql_idxs);
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}
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}
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return $sql;
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}
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/**
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* Drop a column, syntax is ALTER TABLE table DROP COLUMN column,column
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*
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* @param string $tabname Table Name
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* @param string[] $flds One, or an array of Fields To Drop
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* @param string $tableflds Throwaway value to make the function match the parent
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* @param string $tableoptions Throway value to make the function match the parent
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*
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* @return string The SQL necessary to drop the column
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*/
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function DropColumnSQL($tabname, $flds, $tableflds='',$tableoptions='')
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{
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$tabname = $this->TableName ($tabname);
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if (!is_array($flds))
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$flds = explode(',',$flds);
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$f = array();
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$s = 'ALTER TABLE ' . $tabname;
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foreach($flds as $v) {
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if ( $constraintname = $this->DefaultConstraintname($tabname,$v) ) {
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$sql[] = 'ALTER TABLE ' . $tabname . ' DROP CONSTRAINT ' . $constraintname;
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}
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$f[] = ' DROP COLUMN ' . $this->NameQuote($v);
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}
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$s .= implode(', ',$f);
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$sql[] = $s;
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return $sql;
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}
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// return string must begin with space
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function _CreateSuffix($fname,&$ftype,$fnotnull,$fdefault,$fautoinc,$fconstraint,$funsigned)
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{
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$suffix = '';
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if (strlen($fdefault)) $suffix .= " DEFAULT $fdefault";
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if ($fautoinc) $suffix .= ' IDENTITY(1,1)';
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if ($fnotnull) $suffix .= ' NOT NULL';
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else if ($suffix == '') $suffix .= ' NULL';
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if ($fconstraint) $suffix .= ' '.$fconstraint;
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return $suffix;
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}
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/*
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CREATE TABLE
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[ database_name.[ owner ] . | owner. ] table_name
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( { < column_definition >
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| column_name AS computed_column_expression
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| < table_constraint > ::= [ CONSTRAINT constraint_name ] }
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| [ { PRIMARY KEY | UNIQUE } [ ,...n ]
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)
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[ ON { filegroup | DEFAULT } ]
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[ TEXTIMAGE_ON { filegroup | DEFAULT } ]
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< column_definition > ::= { column_name data_type }
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[ COLLATE < collation_name > ]
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[ [ DEFAULT constant_expression ]
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| [ IDENTITY [ ( seed , increment ) [ NOT FOR REPLICATION ] ] ]
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]
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[ ROWGUIDCOL]
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[ < column_constraint > ] [ ...n ]
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< column_constraint > ::= [ CONSTRAINT constraint_name ]
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{ [ NULL | NOT NULL ]
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| [ { PRIMARY KEY | UNIQUE }
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[ CLUSTERED | NONCLUSTERED ]
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[ WITH FILLFACTOR = fillfactor ]
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[ON {filegroup | DEFAULT} ] ]
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]
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| [ [ FOREIGN KEY ]
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REFERENCES ref_table [ ( ref_column ) ]
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[ ON DELETE { CASCADE | NO ACTION } ]
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[ ON UPDATE { CASCADE | NO ACTION } ]
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[ NOT FOR REPLICATION ]
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]
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| CHECK [ NOT FOR REPLICATION ]
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( logical_expression )
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}
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< table_constraint > ::= [ CONSTRAINT constraint_name ]
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{ [ { PRIMARY KEY | UNIQUE }
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[ CLUSTERED | NONCLUSTERED ]
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{ ( column [ ASC | DESC ] [ ,...n ] ) }
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[ WITH FILLFACTOR = fillfactor ]
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[ ON { filegroup | DEFAULT } ]
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]
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| FOREIGN KEY
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[ ( column [ ,...n ] ) ]
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REFERENCES ref_table [ ( ref_column [ ,...n ] ) ]
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[ ON DELETE { CASCADE | NO ACTION } ]
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[ ON UPDATE { CASCADE | NO ACTION } ]
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[ NOT FOR REPLICATION ]
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| CHECK [ NOT FOR REPLICATION ]
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( search_conditions )
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}
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*/
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/*
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CREATE [ UNIQUE ] [ CLUSTERED | NONCLUSTERED ] INDEX index_name
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ON { table | view } ( column [ ASC | DESC ] [ ,...n ] )
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[ WITH < index_option > [ ,...n] ]
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[ ON filegroup ]
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< index_option > :: =
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{ PAD_INDEX |
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FILLFACTOR = fillfactor |
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IGNORE_DUP_KEY |
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DROP_EXISTING |
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STATISTICS_NORECOMPUTE |
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SORT_IN_TEMPDB
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}
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*/
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function _IndexSQL($idxname, $tabname, $flds, $idxoptions)
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{
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$sql = array();
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if ( isset($idxoptions['REPLACE']) || isset($idxoptions['DROP']) ) {
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$sql[] = sprintf ($this->dropIndex, $idxname, $tabname);
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if ( isset($idxoptions['DROP']) )
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return $sql;
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}
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if ( empty ($flds) ) {
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return $sql;
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}
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$unique = isset($idxoptions['UNIQUE']) ? ' UNIQUE' : '';
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$clustered = isset($idxoptions['CLUSTERED']) ? ' CLUSTERED' : '';
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if ( is_array($flds) )
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$flds = implode(', ',$flds);
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$s = 'CREATE' . $unique . $clustered . ' INDEX ' . $idxname . ' ON ' . $tabname . ' (' . $flds . ')';
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if ( isset($idxoptions[$this->upperName]) )
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$s .= $idxoptions[$this->upperName];
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$sql[] = $s;
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return $sql;
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}
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function _GetSize($ftype, $ty, $fsize, $fprec)
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{
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switch ($ftype) {
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case 'INT':
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case 'SMALLINT':
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case 'TINYINT':
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case 'BIGINT':
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return $ftype;
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}
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if ($ty == 'T') return $ftype;
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return parent::_GetSize($ftype, $ty, $fsize, $fprec);
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}
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}
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