I want to insert an item to a table in the database. The table has a key that is auto generated. Is it possible to override the auto generated key, (force a value). If so how?
I m going to assume you are talking about identity columns and not sequences.
In DB2 s CREATE TABLE syntax, have a look at the "generated-column-spec" in the syntax diagram as it relates to identity columns. There are two ways to specify how the identity value will be generated:
If the table you are trying to insert into used the ALWAYS option when the table is created, then you cannot override it. You ll need to drop and recreate the table or use the ALTER TABLE statement to redefine the column to generate the identity value by default only.
If you re trying to LOAD data into a table that has an identity column which is GENERATED ALWAYS then you can do this:
db2 load from tab43.ixf of ixf modified by identityoverride into tablename
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