Class yii\db\sqlite\Command
| Inheritance | yii\db\sqlite\Command » yii\db\Command » yii\base\Component » yii\base\BaseObject |
|---|---|
| Implements | yii\base\Configurable |
| Available since version | 2.0.14 |
| Source Code | https://github.com/yiisoft/yii2/blob/master/framework/db/sqlite/Command.php |
Command represents an SQLite's SQL statement to be executed against a database.
{@inheritdoc}
Public Properties
| Property | Type | Description | Defined By |
|---|---|---|---|
| $behaviors | yii\base\Behavior[] | List of behaviors attached to this component. This property is read-only. | yii\base\Component |
| $db | yii\db\Connection | The DB connection that this command is associated with | yii\db\Command |
| $fetchMode | integer | The default fetch mode for this command. | yii\db\Command |
| $params | array | The parameters (name => value) that are bound to the current PDO statement. | yii\db\Command |
| $pdoStatement | PDOStatement | The PDOStatement object that this command is associated with | yii\db\Command |
| $queryCacheDependency | yii\caching\Dependency | The dependency to be associated with the cached query result for this command | yii\db\Command |
| $queryCacheDuration | integer | The default number of seconds that query results can remain valid in cache. | yii\db\Command |
| $rawSql | string | The raw SQL with parameter values inserted into the corresponding placeholders in $sql. | yii\db\Command |
| $sql | string | The SQL statement to be executed. | yii\db\Command |
Protected Properties
| Property | Type | Description | Defined By |
|---|---|---|---|
| $pendingParams | array | Pending parameters to be bound to the current PDO statement. | yii\db\Command |
Public Methods
| Method | Description | Defined By |
|---|---|---|
| __call() | Calls the named method which is not a class method. | yii\base\Component |
| __clone() | This method is called after the object is created by cloning an existing one. | yii\base\Component |
| __construct() | Constructor. | yii\base\BaseObject |
| __get() | Returns the value of a component property. | yii\base\Component |
| __isset() | Checks if a property is set, i.e. defined and not null. | yii\base\Component |
| __set() | Sets the value of a component property. | yii\base\Component |
| __unset() | Sets a component property to be null. | yii\base\Component |
| addCheck() | Creates a SQL command for adding a check constraint to an existing table. | yii\db\Command |
| addColumn() | Creates a SQL command for adding a new DB column. | yii\db\Command |
| addCommentOnColumn() | Builds a SQL command for adding comment to column. | yii\db\Command |
| addCommentOnTable() | Builds a SQL command for adding comment to table. | yii\db\Command |
| addDefaultValue() | Creates a SQL command for adding a default value constraint to an existing table. | yii\db\Command |
| addForeignKey() | Creates a SQL command for adding a foreign key constraint to an existing table. | yii\db\Command |
| addPrimaryKey() | Creates a SQL command for adding a primary key constraint to an existing table. | yii\db\Command |
| addUnique() | Creates a SQL command for adding an unique constraint to an existing table. | yii\db\Command |
| alterColumn() | Creates a SQL command for changing the definition of a column. | yii\db\Command |
| attachBehavior() | Attaches a behavior to this component. | yii\base\Component |
| attachBehaviors() | Attaches a list of behaviors to the component. | yii\base\Component |
| batchInsert() | Creates a batch INSERT command. | yii\db\Command |
| behaviors() | Returns a list of behaviors that this component should behave as. | yii\base\Component |
| bindParam() | Binds a parameter to the SQL statement to be executed. | yii\db\Command |
| bindValue() | Binds a value to a parameter. | yii\db\Command |
| bindValues() | Binds a list of values to the corresponding parameters. | yii\db\Command |
| cache() | Enables query cache for this command. | yii\db\Command |
| canGetProperty() | Returns a value indicating whether a property can be read. | yii\base\Component |
| canSetProperty() | Returns a value indicating whether a property can be set. | yii\base\Component |
| cancel() | Cancels the execution of the SQL statement. | yii\db\Command |
| checkIntegrity() | Builds a SQL command for enabling or disabling integrity check. | yii\db\Command |
| className() | Returns the fully qualified name of this class. | yii\base\BaseObject |
| createIndex() | Creates a SQL command for creating a new index. | yii\db\Command |
| createTable() | Creates a SQL command for creating a new DB table. | yii\db\Command |
| createView() | Creates a SQL View. | yii\db\Command |
| delete() | Creates a DELETE command. | yii\db\Command |
| detachBehavior() | Detaches a behavior from the component. | yii\base\Component |
| detachBehaviors() | Detaches all behaviors from the component. | yii\base\Component |
| dropCheck() | Creates a SQL command for dropping a check constraint. | yii\db\Command |
| dropColumn() | Creates a SQL command for dropping a DB column. | yii\db\Command |
| dropCommentFromColumn() | Builds a SQL command for dropping comment from column. | yii\db\Command |
| dropCommentFromTable() | Builds a SQL command for dropping comment from table. | yii\db\Command |
| dropDefaultValue() | Creates a SQL command for dropping a default value constraint. | yii\db\Command |
| dropForeignKey() | Creates a SQL command for dropping a foreign key constraint. | yii\db\Command |
| dropIndex() | Creates a SQL command for dropping an index. | yii\db\Command |
| dropPrimaryKey() | Creates a SQL command for removing a primary key constraint to an existing table. | yii\db\Command |
| dropTable() | Creates a SQL command for dropping a DB table. | yii\db\Command |
| dropUnique() | Creates a SQL command for dropping an unique constraint. | yii\db\Command |
| dropView() | Drops a SQL View. | yii\db\Command |
| ensureBehaviors() | Makes sure that the behaviors declared in behaviors() are attached to this component. | yii\base\Component |
| execute() | Executes the SQL statement. | yii\db\sqlite\Command |
| executeResetSequence() | Executes a db command resetting the sequence value of a table's primary key. | yii\db\Command |
| getBehavior() | Returns the named behavior object. | yii\base\Component |
| getBehaviors() | Returns all behaviors attached to this component. | yii\base\Component |
| getRawSql() | Returns the raw SQL by inserting parameter values into the corresponding placeholders in $sql. | yii\db\Command |
| getSql() | Returns the SQL statement for this command. | yii\db\Command |
| hasEventHandlers() | Returns a value indicating whether there is any handler attached to the named event. | yii\base\Component |
| hasMethod() | Returns a value indicating whether a method is defined. | yii\base\Component |
| hasProperty() | Returns a value indicating whether a property is defined for this component. | yii\base\Component |
| init() | Initializes the object. | yii\base\BaseObject |
| insert() | Creates an INSERT command. | yii\db\Command |
| noCache() | Disables query cache for this command. | yii\db\Command |
| off() | Detaches an existing event handler from this component. | yii\base\Component |
| on() | Attaches an event handler to an event. | yii\base\Component |
| prepare() | Prepares the SQL statement to be executed. | yii\db\Command |
| query() | Executes the SQL statement and returns query result. | yii\db\Command |
| queryAll() | Executes the SQL statement and returns ALL rows at once. | yii\db\Command |
| queryColumn() | Executes the SQL statement and returns the first column of the result. | yii\db\Command |
| queryOne() | Executes the SQL statement and returns the first row of the result. | yii\db\Command |
| queryScalar() | Executes the SQL statement and returns the value of the first column in the first row of data. | yii\db\Command |
| renameColumn() | Creates a SQL command for renaming a column. | yii\db\Command |
| renameTable() | Creates a SQL command for renaming a DB table. | yii\db\Command |
| resetSequence() | Creates a SQL command for resetting the sequence value of a table's primary key. | yii\db\Command |
| setRawSql() | Specifies the SQL statement to be executed. The SQL statement will not be modified in any way. | yii\db\Command |
| setSql() | Specifies the SQL statement to be executed. The SQL statement will be quoted using yii\db\Connection::quoteSql(). | yii\db\Command |
| trigger() | Triggers an event. | yii\base\Component |
| truncateTable() | Creates a SQL command for truncating a DB table. | yii\db\Command |
| update() | Creates an UPDATE command. | yii\db\Command |
| upsert() | Creates a command to insert rows into a database table if they do not already exist (matching unique constraints), or update them if they do. | yii\db\Command |
Protected Methods
| Method | Description | Defined By |
|---|---|---|
| bindPendingParams() | Binds pending parameters that were registered via bindValue() and bindValues(). | yii\db\Command |
| getCacheKey() | Returns the cache key for the query. | yii\db\Command |
| internalExecute() | Executes a prepared statement. | yii\db\Command |
| logQuery() | Logs the current database query if query logging is enabled and returns the profiling token if profiling is enabled. | yii\db\Command |
| queryInternal() | Performs the actual DB query of a SQL statement. | yii\db\sqlite\Command |
| refreshTableSchema() | Refreshes table schema, which was marked by requireTableSchemaRefresh(). | yii\db\Command |
| requireTableSchemaRefresh() | Marks a specified table schema to be refreshed after command execution. | yii\db\Command |
| requireTransaction() | Marks the command to be executed in transaction. | yii\db\Command |
| reset() | Resets command properties to their initial state. | yii\db\Command |
| setRetryHandler() | Sets a callable (e.g. anonymous function) that is called when yii\db\Exception is thrown when executing the command. The signature of the callable should be: | yii\db\Command |
Method Details
Executes the SQL statement.
This method should only be used for executing non-query SQL statement, such as INSERT, DELETE, UPDATE SQLs.
No result set will be returned.
| public integer execute ( ) | ||
| return | integer | Number of rows affected by the execution. |
|---|---|---|
| throws | yii\db\Exception | execution failed |
Performs the actual DB query of a SQL statement.
| protected mixed queryInternal ( $method, $fetchMode = null ) | ||
| $method | string | Method of PDOStatement to be called |
| $fetchMode | integer | The result fetch mode. Please refer to PHP manual for valid fetch modes. If this parameter is null, the value set in $fetchMode will be used. |
| return | mixed | The method execution result |
|---|---|---|
| throws | yii\db\Exception | if the query causes any problem |
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