![OUTPUT_NULLS option [ISQL]](gif/backward.gif)
![PINNED_CURSOR_PERCENT_OF_CACHE option [database]](gif/forward.gif)
ASA Database Administration Guide
Database Options
Alphabetical list of options
Controls the interpretation of the percent character.
ON, OFF
ON
It is recommended that you not use % as a comment marker.
Versions of this product before Version 6 treated the percent character (%) in SQL statements exclusively as a comment delimiter. Since Version 5, alternative comment markers such as //, /* */, and -- (double dash) have been available. The double-dash style is the SQL/92 comment delimiter.
Adaptive Server Enterprise treats % as a modulo operator and does not support the Adaptive Server Anywhere mod function. Writing a statement that works in both environments and performs a modulo operation was previously impossible.
The PERCENT_AS_COMMENT option controls the meaning of %. The default setting is ON for backwards compatibility. You can set the option to OFF for compatibility with Adaptive Server Enterprise.
Procedures, triggers and views that were created with %-style comments are converted to double-dash comments when they are stored in the catalog.
Existing procedures must be recreated before changing optionAny existing procedures that contain %-style comments must be recreated before you change the option setting; otherwise, the procedures will fail to load. |