1 | <?php |
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2 | |
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3 | /** |
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4 | V4.94 23 Jan 2007 (c) 2000-2007 John Lim (jlim#natsoft.com.my). All rights reserved. |
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5 | Released under both BSD license and Lesser GPL library license. |
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6 | Whenever there is any discrepancy between the two licenses, |
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7 | the BSD license will take precedence. |
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8 | |
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9 | Set tabs to 4 for best viewing. |
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10 | |
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11 | */ |
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12 | |
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13 | /* |
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14 | In ADOdb, named quotes for MS SQL Server use ". From the MSSQL Docs: |
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15 | |
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16 | Note Delimiters are for identifiers only. Delimiters cannot be used for keywords, |
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17 | whether or not they are marked as reserved in SQL Server. |
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18 | |
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19 | Quoted identifiers are delimited by double quotation marks ("): |
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20 | SELECT * FROM "Blanks in Table Name" |
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21 | |
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22 | Bracketed identifiers are delimited by brackets ([ ]): |
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23 | SELECT * FROM [Blanks In Table Name] |
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24 | |
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25 | Quoted identifiers are valid only when the QUOTED_IDENTIFIER option is set to ON. By default, |
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26 | the Microsoft OLE DB Provider for SQL Server and SQL Server ODBC driver set QUOTED_IDENTIFIER ON |
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27 | when they connect. |
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28 | |
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29 | In Transact-SQL, the option can be set at various levels using SET QUOTED_IDENTIFIER, |
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30 | the quoted identifier option of sp_dboption, or the user options option of sp_configure. |
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31 | |
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32 | When SET ANSI_DEFAULTS is ON, SET QUOTED_IDENTIFIER is enabled. |
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33 | |
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34 | Syntax |
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35 | |
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36 | SET QUOTED_IDENTIFIER { ON | OFF } |
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37 | |
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38 | |
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39 | */ |
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40 | |
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41 | // security - hide paths |
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42 | if (!defined('ADODB_DIR')) die(); |
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43 | |
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44 | class ADODB2_mssql extends ADODB_DataDict { |
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45 | var $databaseType = 'mssql'; |
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46 | var $dropIndex = 'DROP INDEX %2$s.%1$s'; |
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47 | var $renameTable = "EXEC sp_rename '%s','%s'"; |
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48 | var $renameColumn = "EXEC sp_rename '%s.%s','%s'"; |
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49 | |
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50 | var $typeX = 'TEXT'; ## Alternatively, set it to VARCHAR(4000) |
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51 | var $typeXL = 'TEXT'; |
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52 | |
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53 | //var $alterCol = ' ALTER COLUMN '; |
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54 | |
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55 | function MetaType($t,$len=-1,$fieldobj=false) |
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56 | { |
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57 | if (is_object($t)) { |
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58 | $fieldobj = $t; |
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59 | $t = $fieldobj->type; |
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60 | $len = $fieldobj->max_length; |
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61 | } |
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62 | |
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63 | $len = -1; // mysql max_length is not accurate |
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64 | switch (strtoupper($t)) { |
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65 | case 'R': |
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66 | case 'INT': |
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67 | case 'INTEGER': return 'I'; |
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68 | case 'BIT': |
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69 | case 'TINYINT': return 'I1'; |
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70 | case 'SMALLINT': return 'I2'; |
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71 | case 'BIGINT': return 'I8'; |
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72 | |
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73 | case 'REAL': |
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74 | case 'FLOAT': return 'F'; |
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75 | default: return parent::MetaType($t,$len,$fieldobj); |
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76 | } |
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77 | } |
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78 | |
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79 | function ActualType($meta) |
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80 | { |
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81 | switch(strtoupper($meta)) { |
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82 | |
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83 | case 'C': return 'VARCHAR'; |
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84 | case 'XL': return (isset($this)) ? $this->typeXL : 'TEXT'; |
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85 | case 'X': return (isset($this)) ? $this->typeX : 'TEXT'; ## could be varchar(8000), but we want compat with oracle |
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86 | case 'C2': return 'NVARCHAR'; |
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87 | case 'X2': return 'NTEXT'; |
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88 | |
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89 | case 'B': return 'IMAGE'; |
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90 | |
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91 | case 'D': return 'DATETIME'; |
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92 | case 'T': return 'DATETIME'; |
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93 | case 'L': return 'BIT'; |
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94 | |
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95 | case 'R': |
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96 | case 'I': return 'INT'; |
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97 | case 'I1': return 'TINYINT'; |
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98 | case 'I2': return 'SMALLINT'; |
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99 | case 'I4': return 'INT'; |
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100 | case 'I8': return 'BIGINT'; |
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101 | |
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102 | case 'F': return 'REAL'; |
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103 | case 'N': return 'NUMERIC'; |
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104 | default: |
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105 | return $meta; |
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106 | } |
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107 | } |
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108 | |
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109 | |
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110 | function AddColumnSQL($tabname, $flds) |
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111 | { |
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112 | $tabname = $this->TableName ($tabname); |
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113 | $f = array(); |
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114 | list($lines,$pkey) = $this->_GenFields($flds); |
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115 | $s = "ALTER TABLE $tabname $this->addCol"; |
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116 | foreach($lines as $v) { |
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117 | $f[] = "\n $v"; |
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118 | } |
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119 | $s .= implode(', ',$f); |
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120 | $sql[] = $s; |
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121 | return $sql; |
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122 | } |
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123 | |
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124 | /* |
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125 | function AlterColumnSQL($tabname, $flds) |
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126 | { |
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127 | $tabname = $this->TableName ($tabname); |
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128 | $sql = array(); |
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129 | list($lines,$pkey) = $this->_GenFields($flds); |
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130 | foreach($lines as $v) { |
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131 | $sql[] = "ALTER TABLE $tabname $this->alterCol $v"; |
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132 | } |
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133 | |
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134 | return $sql; |
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135 | } |
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136 | */ |
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137 | |
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138 | function DropColumnSQL($tabname, $flds) |
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139 | { |
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140 | $tabname = $this->TableName ($tabname); |
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141 | if (!is_array($flds)) |
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142 | $flds = explode(',',$flds); |
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143 | $f = array(); |
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144 | $s = 'ALTER TABLE ' . $tabname; |
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145 | foreach($flds as $v) { |
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146 | $f[] = "\n$this->dropCol ".$this->NameQuote($v); |
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147 | } |
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148 | $s .= implode(', ',$f); |
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149 | $sql[] = $s; |
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150 | return $sql; |
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151 | } |
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152 | |
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153 | // return string must begin with space |
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154 | function _CreateSuffix($fname,$ftype,$fnotnull,$fdefault,$fautoinc,$fconstraint) |
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155 | { |
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156 | $suffix = ''; |
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157 | if (strlen($fdefault)) $suffix .= " DEFAULT $fdefault"; |
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158 | if ($fautoinc) $suffix .= ' IDENTITY(1,1)'; |
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159 | if ($fnotnull) $suffix .= ' NOT NULL'; |
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160 | else if ($suffix == '') $suffix .= ' NULL'; |
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161 | if ($fconstraint) $suffix .= ' '.$fconstraint; |
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162 | return $suffix; |
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163 | } |
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164 | |
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165 | /* |
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166 | CREATE TABLE |
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167 | [ database_name.[ owner ] . | owner. ] table_name |
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168 | ( { < column_definition > |
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169 | | column_name AS computed_column_expression |
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170 | | < table_constraint > ::= [ CONSTRAINT constraint_name ] } |
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171 | |
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172 | | [ { PRIMARY KEY | UNIQUE } [ ,...n ] |
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173 | ) |
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174 | |
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175 | [ ON { filegroup | DEFAULT } ] |
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176 | [ TEXTIMAGE_ON { filegroup | DEFAULT } ] |
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177 | |
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178 | < column_definition > ::= { column_name data_type } |
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179 | [ COLLATE < collation_name > ] |
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180 | [ [ DEFAULT constant_expression ] |
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181 | | [ IDENTITY [ ( seed , increment ) [ NOT FOR REPLICATION ] ] ] |
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182 | ] |
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183 | [ ROWGUIDCOL] |
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184 | [ < column_constraint > ] [ ...n ] |
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185 | |
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186 | < column_constraint > ::= [ CONSTRAINT constraint_name ] |
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187 | { [ NULL | NOT NULL ] |
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188 | | [ { PRIMARY KEY | UNIQUE } |
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189 | [ CLUSTERED | NONCLUSTERED ] |
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190 | [ WITH FILLFACTOR = fillfactor ] |
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191 | [ON {filegroup | DEFAULT} ] ] |
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192 | ] |
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193 | | [ [ FOREIGN KEY ] |
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194 | REFERENCES ref_table [ ( ref_column ) ] |
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195 | [ ON DELETE { CASCADE | NO ACTION } ] |
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196 | [ ON UPDATE { CASCADE | NO ACTION } ] |
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197 | [ NOT FOR REPLICATION ] |
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198 | ] |
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199 | | CHECK [ NOT FOR REPLICATION ] |
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200 | ( logical_expression ) |
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201 | } |
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202 | |
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203 | < table_constraint > ::= [ CONSTRAINT constraint_name ] |
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204 | { [ { PRIMARY KEY | UNIQUE } |
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205 | [ CLUSTERED | NONCLUSTERED ] |
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206 | { ( column [ ASC | DESC ] [ ,...n ] ) } |
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207 | [ WITH FILLFACTOR = fillfactor ] |
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208 | [ ON { filegroup | DEFAULT } ] |
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209 | ] |
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210 | | FOREIGN KEY |
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211 | [ ( column [ ,...n ] ) ] |
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212 | REFERENCES ref_table [ ( ref_column [ ,...n ] ) ] |
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213 | [ ON DELETE { CASCADE | NO ACTION } ] |
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214 | [ ON UPDATE { CASCADE | NO ACTION } ] |
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215 | [ NOT FOR REPLICATION ] |
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216 | | CHECK [ NOT FOR REPLICATION ] |
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217 | ( search_conditions ) |
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218 | } |
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219 | |
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220 | |
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221 | */ |
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222 | |
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223 | /* |
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224 | CREATE [ UNIQUE ] [ CLUSTERED | NONCLUSTERED ] INDEX index_name |
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225 | ON { table | view } ( column [ ASC | DESC ] [ ,...n ] ) |
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226 | [ WITH < index_option > [ ,...n] ] |
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227 | [ ON filegroup ] |
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228 | < index_option > :: = |
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229 | { PAD_INDEX | |
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230 | FILLFACTOR = fillfactor | |
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231 | IGNORE_DUP_KEY | |
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232 | DROP_EXISTING | |
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233 | STATISTICS_NORECOMPUTE | |
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234 | SORT_IN_TEMPDB |
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235 | } |
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236 | */ |
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237 | function _IndexSQL($idxname, $tabname, $flds, $idxoptions) |
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238 | { |
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239 | $sql = array(); |
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240 | |
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241 | if ( isset($idxoptions['REPLACE']) || isset($idxoptions['DROP']) ) { |
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242 | $sql[] = sprintf ($this->dropIndex, $idxname, $tabname); |
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243 | if ( isset($idxoptions['DROP']) ) |
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244 | return $sql; |
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245 | } |
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246 | |
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247 | if ( empty ($flds) ) { |
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248 | return $sql; |
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249 | } |
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250 | |
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251 | $unique = isset($idxoptions['UNIQUE']) ? ' UNIQUE' : ''; |
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252 | $clustered = isset($idxoptions['CLUSTERED']) ? ' CLUSTERED' : ''; |
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253 | |
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254 | if ( is_array($flds) ) |
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255 | $flds = implode(', ',$flds); |
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256 | $s = 'CREATE' . $unique . $clustered . ' INDEX ' . $idxname . ' ON ' . $tabname . ' (' . $flds . ')'; |
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257 | |
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258 | if ( isset($idxoptions[$this->upperName]) ) |
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259 | $s .= $idxoptions[$this->upperName]; |
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260 | |
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261 | |
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262 | $sql[] = $s; |
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263 | |
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264 | return $sql; |
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265 | } |
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266 | |
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267 | |
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268 | function _GetSize($ftype, $ty, $fsize, $fprec) |
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269 | { |
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270 | switch ($ftype) { |
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271 | case 'INT': |
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272 | case 'SMALLINT': |
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273 | case 'TINYINT': |
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274 | case 'BIGINT': |
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275 | return $ftype; |
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276 | } |
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277 | if ($ty == 'T') return $ftype; |
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278 | return parent::_GetSize($ftype, $ty, $fsize, $fprec); |
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279 | |
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280 | } |
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281 | } |
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282 | ?> |
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