2012-04-10 14:06:34 -04:00
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<?php
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/**
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* Query
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*
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* Free Query Builder / Database Abstraction Layer
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*
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2012-04-20 13:17:39 -04:00
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* @package Query
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* @author Timothy J. Warren
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2014-01-02 12:36:50 -05:00
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* @copyright Copyright (c) 2012 - 2014
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2012-04-10 14:06:34 -04:00
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* @link https://github.com/aviat4ion/Query
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2012-04-20 13:17:39 -04:00
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* @license http://philsturgeon.co.uk/code/dbad-license
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2012-04-10 14:06:34 -04:00
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*/
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// --------------------------------------------------------------------------
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2014-04-24 15:32:09 -04:00
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namespace Query\Driver\SQL;
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2014-04-02 17:08:50 -04:00
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2012-04-10 14:06:34 -04:00
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/**
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* SQLite Specific SQL
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2012-04-20 13:17:39 -04:00
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*
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* @package Query
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* @subpackage Drivers
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2012-04-10 14:06:34 -04:00
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*/
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2014-03-26 21:33:58 -04:00
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class SQLite_SQL extends Abstract_SQL {
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2014-02-04 20:59:30 -05:00
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/**
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* Get the query plan for the sql query
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*
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* @param string $sql
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* @return string
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*/
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public function explain($sql)
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{
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return "EXPLAIN QUERY PLAN {$sql}";
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}
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2012-04-10 14:06:34 -04:00
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// --------------------------------------------------------------------------
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/**
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* Random ordering keyword
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*
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* @return string
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*/
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public function random()
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{
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return ' RANDOM()';
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}
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2012-04-10 14:06:34 -04:00
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// --------------------------------------------------------------------------
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/**
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* Returns sql to list other databases
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*
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2014-04-10 15:54:43 -04:00
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* @return string
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2012-04-10 14:06:34 -04:00
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*/
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public function db_list()
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{
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2014-04-08 14:43:07 -04:00
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return 'PRAGMA database_list';
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2012-04-10 14:06:34 -04:00
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}
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// --------------------------------------------------------------------------
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/**
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* Returns sql to list tables
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*
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* @return string
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*/
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public function table_list()
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{
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return <<<SQL
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SELECT DISTINCT "name"
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FROM "sqlite_master"
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WHERE "type"='table'
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2014-04-10 15:54:43 -04:00
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AND "name" NOT LIKE 'sqlite_%'
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2012-04-10 14:06:34 -04:00
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ORDER BY "name" DESC
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SQL;
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}
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// --------------------------------------------------------------------------
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/**
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2014-04-23 16:27:43 -04:00
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* List the system tables
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2012-04-10 14:06:34 -04:00
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*
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2014-04-23 16:27:43 -04:00
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* @return array
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2012-04-10 14:06:34 -04:00
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*/
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public function system_table_list()
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{
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return array('sqlite_master', 'sqlite_temp_master', 'sqlite_sequence');
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2012-04-10 14:06:34 -04:00
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}
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// --------------------------------------------------------------------------
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/**
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* Returns sql to list views
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*
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* @return string
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*/
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public function view_list()
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{
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return <<<SQL
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SELECT "name" FROM "sqlite_master" WHERE "type" = 'view'
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SQL;
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}
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// --------------------------------------------------------------------------
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/**
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* Returns sql to list triggers
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*
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2013-05-01 15:59:23 -04:00
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* @return NULL
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2012-04-10 14:06:34 -04:00
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*/
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public function trigger_list()
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{
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return 'SELECT "name" FROM "sqlite_master" WHERE "type"=\'trigger\'';
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2012-04-10 14:06:34 -04:00
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}
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// --------------------------------------------------------------------------
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/**
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* Return sql to list functions
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*
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2013-05-01 15:59:23 -04:00
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* @return NULL
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2012-04-10 14:06:34 -04:00
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*/
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public function function_list()
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{
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2013-05-01 15:59:23 -04:00
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return NULL;
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2012-04-10 14:06:34 -04:00
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}
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// --------------------------------------------------------------------------
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/**
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* Return sql to list stored procedures
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*
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2013-05-01 15:59:23 -04:00
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* @return NULL
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2012-04-10 14:06:34 -04:00
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*/
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public function procedure_list()
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{
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return NULL;
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2012-04-10 14:06:34 -04:00
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}
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// --------------------------------------------------------------------------
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/**
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* Return sql to list sequences
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*
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2013-05-01 15:59:23 -04:00
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* @return NULL
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2012-04-10 14:06:34 -04:00
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*/
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public function sequence_list()
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{
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return NULL;
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2012-04-10 14:06:34 -04:00
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}
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2014-03-26 20:49:33 -04:00
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2012-05-07 16:05:51 -04:00
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// --------------------------------------------------------------------------
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2014-03-26 20:49:33 -04:00
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2012-05-07 16:05:51 -04:00
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/**
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* SQL to show list of field types
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*
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2014-03-17 19:35:25 -04:00
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* @return string[]
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2012-05-07 16:05:51 -04:00
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*/
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public function type_list()
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{
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2012-05-08 08:31:57 -04:00
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return array('INTEGER', 'REAL', 'TEXT', 'BLOB');
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}
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2012-05-09 13:54:38 -04:00
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// --------------------------------------------------------------------------
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2014-03-26 20:49:33 -04:00
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2012-05-09 13:54:38 -04:00
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/**
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* SQL to show infromation about columns in a table
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*
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* @param string $table
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* @return string
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*/
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public function column_list($table)
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{
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return 'PRAGMA table_info("'.$table.'")';
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}
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2012-04-10 14:06:34 -04:00
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2014-04-07 16:49:49 -04:00
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// --------------------------------------------------------------------------
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/**
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* Get the list of foreign keys for the current
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* table
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*
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* @param string $table
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* @return string
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*/
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public function fk_list($table)
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{
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return 'PRAGMA foreign_key_list("' . $table . '")';
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}
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// --------------------------------------------------------------------------
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/**
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* Get the list of indexes for the current table
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*
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* @param string $table
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2014-04-23 16:27:43 -04:00
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* @return string
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2014-04-08 14:43:07 -04:00
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*/
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public function index_list($table)
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{
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return 'PRAGMA index_list("' . $table . '")';
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2014-04-07 16:49:49 -04:00
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}
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2012-04-10 14:06:34 -04:00
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}
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2014-02-04 20:59:30 -05:00
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//End of sqlite_sql.php
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