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Full Discussion: Executing SQL's in parallel
Top Forums UNIX for Beginners Questions & Answers Executing SQL's in parallel Post 303041089 by Corona688 on Thursday 14th of November 2019 10:09:58 AM
Old 11-14-2019
It's also important to realize that parallel can be a performance loss in some situations, especially if any of these queries are disk-intensive.
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SQLSRV_QUERY(3) 														   SQLSRV_QUERY(3)

sqlsrv_query - Prepares and executes a query.

SYNOPSIS
mixed sqlsrv_query (resource $conn, string $sql, [array $params], [array $options]) DESCRIPTION
Prepares and executes a query. PARAMETERS
o $conn - A connection resource returned by sqlsrv_connect(3). o $sql - The string that defines the query to be prepared and executed. o $params - An array specifying parameter information when executing a parameterized query. Array elements can be any of the following: oA literal value oA PHP variable oAn array with this structure: array($value [, $direction [, $phpType [, $sqlType]]]) The following table describes the elements in the array structure above: Array structure +----------------------+---------------------------------------------------+ | Element | | | | | | | Description | | | | +----------------------+---------------------------------------------------+ | $value | | | | | | | A literal value, a PHP variable, or a PHP by-ref- | | | erence variable. | | | | |$direction (optional) | | | | | | | One of the following SQLSRV constants used to | | | indicate the parameter direction: SQL- | | | SRV_PARAM_IN, SQLSRV_PARAM_OUT, SQL- | | | SRV_PARAM_INOUT. The default value is SQL- | | | SRV_PARAM_IN. | | | | | $phpType (optional) | | | | | | | A SQLSRV_PHPTYPE_* constant that specifies PHP | | | data type of the returned value. | | | | | $sqlType (optional) | | | | | | | A SQLSRV_SQLTYPE_* constant that specifies the | | | SQL Server data type of the input value. | | | | +----------------------+---------------------------------------------------+ o $options - An array specifing query property options. The supported keys are described in the following table: Query Options +-----------------------+--------------------------------------+---+ | Key | | | | | | | | | Values | | | | | | | | Description | | | | | | +-----------------------+--------------------------------------+---+ | QueryTimeout | | | | | | | | | A positive integer value. | | | | | | | | Sets the query timeout in seconds. | | | | By default, the driver will wait | | | | indefinitely for results. | | | | | | |SendStreamParamsAtExec | | | | | | | | | | | | | TRUE or FALSE (the default is TRUE) | | | | | | | | Configures the driver to send all | | | | stream data at execution ( TRUE), or | | | | to send stream data in chunks ( | | | | FALSE). By default, the value is set | | | | to TRUE. For more information, see | | | | sqlsrv_send_stream_data(3). | | | | | | | Scrollable | | | | | | | | | SQLSRV_CURSOR_FORWARD, SQLSRV_CUR- | | | | SOR_STATIC, SQLSRV_CURSOR_DYNAMIC, | | | | or SQLSRV_CURSOR_KEYSET | | | | | | | | See Specifying a Cursor Type and | | | | Selecting Rows in the Microsoft SQL- | | | | SRV documentation. | | | | | | +-----------------------+--------------------------------------+---+ RETURN VALUES
Returns a statement resource on success and FALSE if an error occurred. EXAMPLES
Example #1 sqlsrv_query(3) example <?php $serverName = "serverNamesqlexpress"; $connectionInfo = array( "Database"=>"dbName", "UID"=>"username", "PWD"=>"password" ); $conn = sqlsrv_connect( $serverName, $connectionInfo); if( $conn === false ) { die( print_r( sqlsrv_errors(), true)); } $sql = "INSERT INTO Table_1 (id, data) VALUES (?, ?)"; $params = array(1, "some data"); $stmt = sqlsrv_query( $conn, $sql, $params); if( $stmt === false ) { die( print_r( sqlsrv_errors(), true)); } ?> NOTES
For statements that you plan to execute only once, use sqlsrv_query(3). If you intend to re-execute a statement with different parameter values, use the combination of sqlsrv_prepare(3) and sqlsrv_execute(3). SEE ALSO
sqlsrv_prepare(3), sqlsrv_execute(3). PHP Documentation Group SQLSRV_QUERY(3)

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