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<?php |
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/** |
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* Class MSSQL |
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* |
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* @filesource MSSQL.php |
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* @created 11.01.2018 |
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* @package chillerlan\Database\Dialects |
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* @author Smiley <[email protected]> |
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* @copyright 2018 Smiley |
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* @license MIT |
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*/ |
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namespace chillerlan\Database\Dialects; |
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class MSSQL extends DialectAbstract{ |
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protected array $quotes = ['[', ']']; |
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/** @inheritdoc */ |
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public function select(array $cols, array $from, string $where = null, $limit = null, $offset = null, bool $distinct = null, array $groupby = null, array $orderby = null):array{ |
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$sql = ['SELECT']; |
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if($distinct){ |
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$sql[] = 'DISTINCT'; |
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} |
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!empty($cols) |
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? $sql[] = implode(', ', $cols) |
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: $sql[] = '*'; |
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$sql[] = 'FROM'; |
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$sql[] = implode(', ', $from); |
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$sql[] = $where; |
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if(!empty($groupby)){ |
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$sql[] = 'GROUP BY'; |
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$sql[] = implode(', ', $groupby); |
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} |
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if(!empty($orderby)){ |
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$sql[] = 'ORDER BY'; |
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$sql[] = implode(', ', $orderby); |
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} |
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if($limit !== null){ |
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if(empty($orderby)){ |
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$sql[] = 'ORDER BY 1'; |
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} |
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$sql[] = 'OFFSET ? ROWS FETCH NEXT ? ROWS ONLY'; |
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} |
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return $sql; |
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} |
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/** @inheritdoc */ |
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public function createDatabase(string $dbname, bool $ifNotExists = null, string $collate = null):array{ |
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$sql = [ 'CREATE DATABASE']; |
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$sql[] = $this->quote($dbname); |
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if($collate){ |
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$sql[] = 'COLLATE'; |
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$sql[] = $collate; |
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} |
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return $sql; |
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} |
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/** @inheritdoc */ |
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public function createTable(string $table, array $cols, string $primaryKey = null, bool $ifNotExists = null, bool $temp = null, string $dir = null):array{ |
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$sql = ['CREATE TABLE']; |
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$sql[] = $this->quote($table); |
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if(!empty($this->cols)){ |
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$sql[] = '('; |
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$sql[] = implode(',', $cols); |
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if($primaryKey){ |
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$sql[] = ', PRIMARY KEY ('.$this->quote($primaryKey).')'; |
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} |
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$sql[] = ')'; |
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} |
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return $sql; |
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} |
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/** @inheritdoc */ |
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public function fieldspec(string $name, string $type, $length = null, string $attribute = null, string $collation = null, bool $isNull = null, string $defaultType = null, $defaultValue = null, string $extra = null):string{ |
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$type = strtolower(trim($type)); |
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$field = [$this->quote(trim($name))]; |
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$type_translation = [ |
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'boolean' => 'tinyint', |
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'bool ' => 'tinyint', |
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'mediumint' => 'int', |
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'double' => 'float', |
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'tinytext' => 'text', |
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'mediumtext' => 'text', |
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'longtext' => 'text', |
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'timestamp' => 'datetime2', |
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][$type] ?? $type; |
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if((is_int($length) || is_string($length) && (count(explode(',', $length)) === 2 || $length === 'max')) |
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&& in_array($type, ['char', 'varchar', 'nchar', 'nvarchar', 'decimal', 'numeric', 'datetime2', 'time'], true)){ |
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$field[] = $type_translation.'('.$length.')'; |
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} |
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else{ |
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$field[] = $type_translation; |
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} |
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if($isNull !== null){ |
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$field[] = $isNull ? 'NULL' : 'NOT NULL'; |
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} |
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$defaultType = strtoupper($defaultType); |
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if($defaultType === 'USER_DEFINED'){ |
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// @todo |
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switch(true){ |
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case $type === 'BOOLEAN': |
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$field[] = 'DEFAULT '.(preg_match('/^1|T|TRUE|YES$/i', $defaultValue) ? '1' : '0'); |
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break; |
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default: |
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$field[] = 'DEFAULT \''.$defaultValue.'\''; |
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} |
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} |
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elseif($defaultType === 'CURRENT_TIMESTAMP'){ |
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$field[] = 'DEFAULT CURRENT_TIMESTAMP'; |
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} |
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elseif($defaultType === 'NULL' && $isNull === true){ |
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$field[] = 'DEFAULT NULL'; |
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} |
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if($extra){ |
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$field[] = $extra; |
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} |
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return implode(' ', $field); |
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} |
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/** @inheritdoc */ |
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public function showDatabases():array{ |
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// https://stackoverflow.com/questions/147659/get-list-of-databases-from-sql-server |
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// EXEC sp_databases |
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return ['SELECT name AS [Database] FROM master.dbo.sysdatabases WHERE name NOT IN (\'master\', \'tempdb\', \'model\', \'msdb\')']; |
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} |
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} |
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chillerlan /
php-database
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