Not null in sybase

This statement does not change any existing values in the table. If the column is contained in any multicolumn index, uniqueness constraint, foreign key, or primary key, then the index, constraint, or key must be deleted before the column can be deleted.

This includes both table check constraints and column check constraints. Delete a uniqueness constraint for this table. Any foreign keys referencing this uniqueness constraint rather than the primary key are also deleted.

Reports an error if there are associated foreign-key constraints. All foreign keys referencing the primary key for this table are also deleted. Reports an error if there are associated foreign key constraints. Retains the implicitly created nonunique HG index for the foreign key constraint. Any applications using the old table name must be modified. Also, any foreign keys that were automatically assigned the same name as the old table name do not change names.

Any applications using the old column name must be modified. How to ensure variable is not null in sybase sql procedure? Ask Question. Asked 3 years ago. Active 3 years ago.

Viewed 2k times. How can I check for not null in sybase sql procedure? The following code: if name is not null begin print "test!!!!!!! How can I check that name is not null? What's the correct syntax? Improve this question. ClickThisNick 4, 8 8 gold badges 36 36 silver badges 64 64 bronze badges. Possible duplicate of how to find if incomming parameter in not null and not empty in Sybase — Brandon Haugen. Add a comment. The table can contain data when adding an identity column. Adaptive Server Anywhere supports identity columns of any numeric type with any allowable scale and precision.

The identity column value can be positive, negative, or zero, limited by the range of the data type. The table must be empty when adding identity columns. ASA identity columns can be altered to be nonidentity columns and vice versa. Adaptive Server Enterprise supports a single identity column per table. ASE identity columns are restricted to only numeric data type scale 0, maximum precision They must be positive, are limited by the range of the data type, and cannot be null.