For example, if you want to create an index based on `lower(col1)`, execute the following SQL statement: Expression index involves various kinds of expressions. To ensure correctness, only some fully ...

Creates indexes on columns in tables. Restriction: You cannot use CREATE INDEX on a table accessed via an engine ... whether the changes originate from PROC SQL or from some other source. Therefore, ...

The case condition set the desired values to null so the FBI won’t index the null values. For example: CREATE INDEX idx_msg_unread ON user_messages (CASE WHEN msg_unread = 1 THEN NULL ELSE msg ...

For example, if you have a table called cities ... the geom column and the R-tree index type. After you create a spatial index in SQL, you can use it to perform spatial queries and analysis ...