Class yii\db\mysql\QueryBuilder

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Inheritance	yii\db\mysql\QueryBuilder » yii\db\QueryBuilder » yii\base\Object
Implements	yii\base\Configurable
Available since version	2.0
Source Code	https://github.com/yiisoft/yii2/blob/master/framework/db/mysql/QueryBuilder.php

QueryBuilder is the query builder for MySQL databases.

Public Properties

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Property	Type	Description	Defined By
$db	yii\db\Connection	The database connection.	yii\db\QueryBuilder
$separator	string	The separator between different fragments of a SQL statement.	yii\db\QueryBuilder
$typeMap	array	Mapping from abstract column types (keys) to physical column types (values).	yii\db\mysql\QueryBuilder

Protected Properties

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Property	Type	Description	Defined By
$conditionBuilders	array	Map of query condition to builder methods.	yii\db\QueryBuilder
$likeEscapeCharacter	string\|null	Character used to escape special characters in LIKE conditions.	yii\db\QueryBuilder
$likeEscapingReplacements	array	Map of chars to their replacements in LIKE conditions.	yii\db\QueryBuilder

Public Methods

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Method	Description	Defined By
__call()	Calls the named method which is not a class method.	yii\base\Object
__construct()	Constructor.	yii\db\QueryBuilder
__get()	Returns the value of an object property.	yii\base\Object
__isset()	Checks if a property is set, i.e. defined and not null.	yii\base\Object
__set()	Sets value of an object property.	yii\base\Object
__unset()	Sets an object property to null.	yii\base\Object
addColumn()	Builds a SQL statement for adding a new DB column.	yii\db\QueryBuilder
addCommentOnColumn()	Builds a SQL command for adding comment to column	yii\db\mysql\QueryBuilder
addCommentOnTable()	Builds a SQL command for adding comment to table	yii\db\mysql\QueryBuilder
addForeignKey()	Builds a SQL statement for adding a foreign key constraint to an existing table.	yii\db\QueryBuilder
addPrimaryKey()	Builds a SQL statement for adding a primary key constraint to an existing table.	yii\db\QueryBuilder
alterColumn()	Builds a SQL statement for changing the definition of a column.	yii\db\QueryBuilder
batchInsert()	Generates a batch INSERT SQL statement.	yii\db\QueryBuilder
build()	Generates a SELECT SQL statement from a yii\db\Query object.	yii\db\QueryBuilder
buildAndCondition()	Connects two or more SQL expressions with the `AND` or `OR` operator.	yii\db\QueryBuilder
buildBetweenCondition()	Creates an SQL expressions with the `BETWEEN` operator.	yii\db\QueryBuilder
buildColumns()	Processes columns and properly quotes them if necessary.	yii\db\QueryBuilder
buildCondition()	Parses the condition specification and generates the corresponding SQL expression.	yii\db\QueryBuilder
buildExistsCondition()	Creates an SQL expressions with the `EXISTS` operator.	yii\db\QueryBuilder
buildFrom()		yii\db\QueryBuilder
buildGroupBy()		yii\db\QueryBuilder
buildHashCondition()	Creates a condition based on column-value pairs.	yii\db\QueryBuilder
buildHaving()		yii\db\QueryBuilder
buildInCondition()	Creates an SQL expressions with the `IN` operator.	yii\db\QueryBuilder
buildJoin()		yii\db\QueryBuilder
buildLikeCondition()	Creates an SQL expressions with the `LIKE` operator.	yii\db\QueryBuilder
buildLimit()		yii\db\mysql\QueryBuilder
buildNotCondition()	Inverts an SQL expressions with `NOT` operator.	yii\db\QueryBuilder
buildOrderBy()		yii\db\QueryBuilder
buildOrderByAndLimit()	Builds the ORDER BY and LIMIT/OFFSET clauses and appends them to the given SQL.	yii\db\QueryBuilder
buildSelect()		yii\db\QueryBuilder
buildSimpleCondition()	Creates an SQL expressions like `"column" operator value`.	yii\db\QueryBuilder
buildUnion()		yii\db\QueryBuilder
buildWhere()		yii\db\QueryBuilder
canGetProperty()	Returns a value indicating whether a property can be read.	yii\base\Object
canSetProperty()	Returns a value indicating whether a property can be set.	yii\base\Object
checkIntegrity()	Builds a SQL statement for enabling or disabling integrity check.	yii\db\mysql\QueryBuilder
className()	Returns the fully qualified name of this class.	yii\base\Object
createIndex()	Builds a SQL statement for creating a new index.	yii\db\mysql\QueryBuilder
createTable()	Builds a SQL statement for creating a new DB table.	yii\db\QueryBuilder
delete()	Creates a DELETE SQL statement.	yii\db\QueryBuilder
dropColumn()	Builds a SQL statement for dropping a DB column.	yii\db\QueryBuilder
dropCommentFromColumn()	Builds a SQL command for adding comment to column	yii\db\mysql\QueryBuilder
dropCommentFromTable()	Builds a SQL command for adding comment to table	yii\db\mysql\QueryBuilder
dropForeignKey()	Builds a SQL statement for dropping a foreign key constraint.	yii\db\mysql\QueryBuilder
dropIndex()	Builds a SQL statement for dropping an index.	yii\db\QueryBuilder
dropPrimaryKey()	Builds a SQL statement for removing a primary key constraint to an existing table.	yii\db\mysql\QueryBuilder
dropTable()	Builds a SQL statement for dropping a DB table.	yii\db\QueryBuilder
getColumnType()	Converts an abstract column type into a physical column type.	yii\db\QueryBuilder
hasMethod()	Returns a value indicating whether a method is defined.	yii\base\Object
hasProperty()	Returns a value indicating whether a property is defined.	yii\base\Object
init()	Initializes the object.	yii\base\Object
insert()	Creates an INSERT SQL statement.	yii\db\mysql\QueryBuilder
renameColumn()	Builds a SQL statement for renaming a column.	yii\db\mysql\QueryBuilder
renameTable()	Builds a SQL statement for renaming a DB table.	yii\db\QueryBuilder
resetSequence()	Creates a SQL statement for resetting the sequence value of a table's primary key.	yii\db\mysql\QueryBuilder
selectExists()	Creates a SELECT EXISTS() SQL statement.	yii\db\QueryBuilder
truncateTable()	Builds a SQL statement for truncating a DB table.	yii\db\QueryBuilder
update()	Creates an UPDATE SQL statement.	yii\db\QueryBuilder

Protected Methods

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Method	Description	Defined By
buildCompositeInCondition()	Builds SQL for IN condition	yii\db\QueryBuilder
buildSubqueryInCondition()	Builds SQL for IN condition	yii\db\QueryBuilder
hasLimit()	Checks to see if the given limit is effective.	yii\db\mysql\QueryBuilder
hasOffset()	Checks to see if the given offset is effective.	yii\db\mysql\QueryBuilder
prepareInsertSelectSubQuery()	Prepare select-subquery and field names for INSERT INTO .	yii\db\QueryBuilder

Constants

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Constant	Value	Description	Defined By
PARAM_PREFIX	':qp'	The prefix for automatically generated query binding parameters.	yii\db\QueryBuilder

Property Details

$typeMap public property

Mapping from abstract column types (keys) to physical column types (values).

public array $typeMap = [\yii\db\mysql\Schema::TYPE_PK => 'int(11) NOT NULL AUTO_INCREMENT PRIMARY KEY', \yii\db\mysql\Schema::TYPE_UPK => 'int(10) UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY', \yii\db\mysql\Schema::TYPE_BIGPK => 'bigint(20) NOT NULL AUTO_INCREMENT PRIMARY KEY', \yii\db\mysql\Schema::TYPE_UBIGPK => 'bigint(20) UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY', \yii\db\mysql\Schema::TYPE_CHAR => 'char(1)', \yii\db\mysql\Schema::TYPE_STRING => 'varchar(255)', \yii\db\mysql\Schema::TYPE_TEXT => 'text', \yii\db\mysql\Schema::TYPE_SMALLINT => 'smallint(6)', \yii\db\mysql\Schema::TYPE_INTEGER => 'int(11)', \yii\db\mysql\Schema::TYPE_BIGINT => 'bigint(20)', \yii\db\mysql\Schema::TYPE_FLOAT => 'float', \yii\db\mysql\Schema::TYPE_DOUBLE => 'double', \yii\db\mysql\Schema::TYPE_DECIMAL => 'decimal(10,0)', \yii\db\mysql\Schema::TYPE_DATETIME => 'datetime', \yii\db\mysql\Schema::TYPE_TIMESTAMP => 'timestamp', \yii\db\mysql\Schema::TYPE_TIME => 'time', \yii\db\mysql\Schema::TYPE_DATE => 'date', \yii\db\mysql\Schema::TYPE_BINARY => 'blob', \yii\db\mysql\Schema::TYPE_BOOLEAN => 'tinyint(1)', \yii\db\mysql\Schema::TYPE_MONEY => 'decimal(19,4)']

Method Details

addCommentOnColumn() public method (available since version 2.0.8)

Builds a SQL command for adding comment to column

public string addCommentOnColumn ( $table, $column, $comment )
$table	string	The table whose column is to be commented. The table name will be properly quoted by the method.
$column	string	The name of the column to be commented. The column name will be properly quoted by the method.
$comment	string	The text of the comment to be added. The comment will be properly quoted by the method.
return	string	The SQL statement for adding comment on column

addCommentOnTable() public method (available since version 2.0.8)

Builds a SQL command for adding comment to table

public string addCommentOnTable ( $table, $comment )
$table	string	The table whose column is to be commented. The table name will be properly quoted by the method.
$comment	string	The text of the comment to be added. The comment will be properly quoted by the method.
return	string	The SQL statement for adding comment on table

buildLimit() public method

public string buildLimit ( $limit, $offset )
$limit	integer
$offset	integer
return	string	The LIMIT and OFFSET clauses

checkIntegrity() public method

Builds a SQL statement for enabling or disabling integrity check.

public string checkIntegrity ( $check = true, $schema = '', $table = '' )
$check	boolean	Whether to turn on or off the integrity check.
$schema	string	The schema of the tables. Meaningless for MySQL.
$table	string	The table name. Meaningless for MySQL.
return	string	The SQL statement for checking integrity

createIndex() public method

Builds a SQL statement for creating a new index.

public string createIndex ( $name, $table, $columns, $unique = false )
$name	string	The name of the index. The name will be properly quoted by the method.
$table	string	The table that the new index will be created for. The table name will be properly quoted by the method.
$columns	string\|array	The column(s) that should be included in the index. If there are multiple columns, separate them with commas or use an array to represent them. Each column name will be properly quoted by the method, unless a parenthesis is found in the name.
$unique	boolean	Whether to add UNIQUE constraint on the created index.
return	string	The SQL statement for creating a new index.

dropCommentFromColumn() public method (available since version 2.0.8)

Builds a SQL command for adding comment to column

public string dropCommentFromColumn ( $table, $column )
$table	string	The table whose column is to be commented. The table name will be properly quoted by the method.
$column	string	The name of the column to be commented. The column name will be properly quoted by the method.
return	string	The SQL statement for adding comment on column

dropCommentFromTable() public method (available since version 2.0.8)

Builds a SQL command for adding comment to table

public string dropCommentFromTable ( $table )
$table	string	The table whose column is to be commented. The table name will be properly quoted by the method.
return	string	The SQL statement for adding comment on column

dropForeignKey() public method

Builds a SQL statement for dropping a foreign key constraint.

public string dropForeignKey ( $name, $table )
$name	string	The name of the foreign key constraint to be dropped. The name will be properly quoted by the method.
$table	string	The table whose foreign is to be dropped. The name will be properly quoted by the method.
return	string	The SQL statement for dropping a foreign key constraint.

dropPrimaryKey() public method

Builds a SQL statement for removing a primary key constraint to an existing table.

public string dropPrimaryKey ( $name, $table )
$name	string	The name of the primary key constraint to be removed.
$table	string	The table that the primary key constraint will be removed from.
return	string	The SQL statement for removing a primary key constraint from an existing table.

hasLimit() protected method

Checks to see if the given limit is effective.

protected boolean hasLimit ( $limit )
$limit	mixed	The given limit
return	boolean	Whether the limit is effective

hasOffset() protected method

Checks to see if the given offset is effective.

protected boolean hasOffset ( $offset )
$offset	mixed	The given offset
return	boolean	Whether the offset is effective

insert() public method

Creates an INSERT SQL statement.

For example,

$sql = $queryBuilder->insert('user', [
    'name' => 'Sam',
    'age' => 30,
], $params);

The method will properly escape the table and column names.

public string insert ( $table, $columns, &$params )
$table	string	The table that new rows will be inserted into.
$columns	array\|yii\db\Query	The column data (name => value) to be inserted into the table or instance of \yii\db\mysql\yii\db\Query to perform INSERT INTO ... SELECT SQL statement. Passing of \yii\db\mysql\yii\db\Query is available since version 2.0.11.
$params	array	The binding parameters that will be generated by this method. They should be bound to the DB command later.
return	string	The INSERT SQL

renameColumn() public method

Builds a SQL statement for renaming a column.

public string renameColumn ( $table, $oldName, $newName )
$table	string	The table whose column is to be renamed. The name will be properly quoted by the method.
$oldName	string	The old name of the column. The name will be properly quoted by the method.
$newName	string	The new name of the column. The name will be properly quoted by the method.
return	string	The SQL statement for renaming a DB column.
throws	yii\db\Exception

resetSequence() public method

Creates a SQL statement for resetting the sequence value of a table's primary key.

The sequence will be reset such that the primary key of the next new row inserted will have the specified value or 1.

public string resetSequence ( $tableName, $value = null )
$tableName	string	The name of the table whose primary key sequence will be reset
$value	mixed	The value for the primary key of the next new row inserted. If this is not set, the next new row's primary key will have a value 1.
return	string	The SQL statement for resetting sequence
throws	yii\base\InvalidParamException	if the table does not exist or there is no sequence associated with the table.