-- two dashes mean a comment in DB2 for VM and z/OS
-- 1st design your table - considered optional
-- 2nd declare your table - maditory. You still can not alter a table that
-- does not exist
-- 3rd alter the table to add the foreign key
-- DB2 for FOREIGN KEY
ALTER TABLE owner.Tablename
ADD CONSTRAINT name FOREIGN KEY (column name(s) )
REFERENCES REDBA.RESF_FINAL_CARD (column name(s) )
ON DELETE RESTRICT -- means stop them
or
ON DELETE cascade -- Cascade means to delete everthing here
or
ON DELETE SET value -- update the value of the column
;
-- note since you are doing DDL not dml the commit is implicit!! so
-- there is no COMMIT WORK needed
how to connect the rad to db2
The DB2 is owned by Aston Martin.
The SQL0668N error in DB2 indicates that an operation attempted on a table is not allowed due to reason code 7, which usually relates to a constraint violation. Check the constraints defined on the table and ensure that the operation being performed is compliant with those constraints. This error typically occurs when trying to insert or update data that violates a constraint such as a foreign key constraint.
congress
The key foreign policy makers are?
Yes, DB2 install is available for PCs (Windows)
yes .a foreign key can have null values
False. A foreign key is a primary of one table that is in another table. A foreign key can be repeated, so it does not uniquely identify records in the table where it is a foreign key.
stay out of foreign conflict
the foreign key referential between two tables.
DB2 enterprise server edition
yep foreign key can have duplicate values