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SQL Anywhere 11.0.1 » UltraLite - Database Management and Reference » UltraLite SQL Reference » UltraLite SQL elements


The NULL value in UltraLite

As with SQL Anywhere, NULL is a special value that is different from any valid value for any data type. However, the NULL value is a legal value in any data type. NULL is used to represent unknown (no value) or inapplicable information. See NULL value.