DBA's love creating DB2 objects, not sure how many DBA's have faced '' The definition of the table is incomplete " and wondered why ( at least for a moment ) ?
A simple DB2 tablespace is created in an existing database followed by a table with ' n ' number of columns. The application needs a primary key to be created on the first column. The DBA embeds the primary key syntax within the create table statement as shown below :
If you execute the above syntax ( provided you have the database and tablespace ) there shouldn't be any error - Peice of cake ? Possibly the simplest of requests one can ever work on. Looks like nothing is missed ? Let's confirm that.
Issue a SQL query against the newly created table - SELECT COUNT(*) FROM USER01.TEST_TABLE ;
Error message :
I thought my table definition was complete. Where is this incomplete definition coming from ?
Resolution :
Primary key follows with a UNIQUE Index on the table. If you create a primary key and miss out on creating an unique index on the column comprising the primary key - your DB2 table is rendered incomplete and unusable.
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