Modifies a column's values in existing rows of a table or view. Restriction: You cannot use UPDATE on a table accessed via an engine that does not support UPDATE processing. You can update one or more ...

If a column is already in the table, you can change the following column attributes using the MODIFY clause: length, informat, format, and label. The values in a table are either truncated or padded ...

If a table has a PRIMARY KEY column, then any attempt to update a (different) column of type LIST yields SQL Error: Constraint Error: Duplicate key "id: 1" violates primary key constraint. If this is ...

If you only want to update values in table A when there are matching records in table B, then an inner join is the way to go. If you have calculations that need to vary based on optional data, the ...