DROP VARIABLE
Statement
Eliminates a SQL variable that was created using the CREATE VARIABLE statement.
Syntax
DROP VARIABLE [ IF EXISTS ] <identifier>
Parameters
- prevents an error being returned when the DROP VARIABLE statement attempts to remove a database object that does not exist.
Usage
Variables are automatically eliminated when the database connection is released. Variables are often used for large objects, so eliminating them after use or setting them to NULL can free up significant resources (primarily disk space).
Standards
- SQL—Vendor extension to ISO/ANSI SQL grammar.
- SAP Database products—Not supported by SAP ASE.