Php/docs/function.sqlsrv-num-rows
sqlsrv_num_rows
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sqlsrv_num_rows — Retrieves the number of rows in a result set
说明
sqlsrv_num_rows
( resource $stmt
) : mixed
Retrieves the number of rows in a result set. This function requires that the statement resource be created with a static or keyset cursor. For more information, see sqlsrv_query(), sqlsrv_prepare(), or » Specifying a Cursor Type and Selecting Rows in the Microsoft SQLSRV documentation.
参数
stmt- The statement for which the row count is returned. The statement resource must be created with a static or keyset cursor. For more information, see sqlsrv_query(), sqlsrv_prepare(), or » Specifying a Cursor Type and Selecting Rows in the Microsoft SQLSRV documentation.
返回值
Returns the number of rows retrieved on success and false if an error occurred.
If a forward cursor (the default) or dynamic cursor is used, false is returned.
范例
Example #1 sqlsrv_num_rows() example
<?php$server = "serverName\sqlexpress";$connectionInfo = array( "Database"=>"dbName", "UID"=>"username", "PWD"=>"password" );$conn = sqlsrv_connect( $server, $connectionInfo );$sql = "SELECT * FROM Table_1";$params = array();$options = array( "Scrollable" => SQLSRV_CURSOR_KEYSET );$stmt = sqlsrv_query( $conn, $sql , $params, $options );$row_count = sqlsrv_num_rows( $stmt ); if ($row_count === false) echo "Error in retrieveing row count.";else echo $row_count;?>
参见
- sqlsrv_has_rows() - Indicates whether the specified statement has rows
- sqlsrv_rows_affected() - Returns the number of rows modified by the last INSERT, UPDATE, or DELETE query executed
