Returns a short description of the UltraLite plan optimization strategy of a SQL statement, as a string. The description is the same as that returned by the EXPLANATION function.
SHORT_PLAN( string-expression )
For some queries, the execution plan for UltraLite may differ from the plan selected for SQL Anywhere.
string-expression The SQL statement, which is commonly a SELECT statement, but can also be an UPDATE or DELETE statement.
LONG VARCHAR
SQL/2003 Vendor extension.
The following statement passes a SELECT statement as a string parameter and returns the plan for executing the query.
SELECT SHORT_PLAN( 'SELECT * FROM Departments WHERE DepartmentID > 100' ); |
This information can help with decisions about indexes to add or how to structure your database for better performance.
| Envoyer votre avis sur cette page par email. | Copyright © 2009, iAnywhere Solutions, Inc. - SQL Anywhere 11.0.1 |