SHORT_PLAN function [Miscellaneous]

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.

Syntax 
SHORT_PLAN( string-expression )
Remarks

For some queries, the execution plan for UltraLite may differ from the plan selected for SQL Anywhere.

Parameters

  • string-expression   The SQL statement, which is commonly a SELECT statement, but can also be an UPDATE or DELETE statement.

See also
Standards and compatibility

  • SQL/2003   Vendor extension.

Example

The following statement passes a SELECT statement as a string parameter and returns the plan for executing the query.

SELECT EXPLANATION(
   '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.

Copyright © 2008, iAnywhere Solutions, Inc. - SQL Anywhere 11.0.0