Description. The SQLite IS NULL Condition is used to test for a NULL value in a SELECT, INSERT, UPDATE, or DELETE statement.
a IS b and a IS NOT b is the general form where a and b are expressions. This is generally only seen in a IS NULL and a IS NOT NULL cases. There are also.
SQLite NULL Values - Learn SQLite in simple and easy steps starting from basic to advanced concepts with examples including database programming clauses.
NULL Handling in SQLite Versus Other Database Engines . Check the behavior of NULLs in WHERE clauses select a+ from t1 where b<10; select a+
When comparing values as a result of a USING clause, the normal rules for handling affinities, collation sequences and NULL values in comparisons apply.
Create a partial index by adding a WHERE clause to the end of an ordinary If the WHERE clause expression evaluates to NULL or to false for some rows of.