Problem with a job

Question

DECLARE
X NUMBER;
BEGIN
SYS.DBMS_JOB.SUBMIT
( job => X
,what => 'create table imad (test1 number(3,2),test2 varchar2(20));'
,next_date => to_date('12/07/2006 11:26:34','dd/mm/yyyy hh24:mi:ss')
,interval => 'SYSDATE+30/1440 '
,no_parse => TRUE
END;
and when i execute the job it gives me the error message:
ORA-12011: execution of 1 jobs failed
ORA-06512: at "SYS.DBMS_IJOB", line 406
ORA-06512: at "SYS.DBMS_JOB", line 270
ORA-06512: at line 1
i dont understand ???

Answer 1

Not the best of ideas to create tables dynamically in Oracle - or any database.
One example - stored proc using that table becomes invalidated when you drop that table. And stays invalidated even after the table has been added again. The code needs to be recompiled. Another example - indexes added to optimise access to the table. Drop and create the table dynamically, you need to do the same for the indexes. But what happens when someone adds a new index that is not hardcoded into the create index code?
Dealing with permanent objects in a database as dynamic objects (to be created and dropped at whim) is simply an ugly and messy "solution".
Permanent objects are not intended to be used this way - that is why there features like temporary tables, name value contexts, etc. Or for "semi-permanent" objects features like partitioning (e.g. dealing with tables containing a sliding window period of data).
It is important to use the right tool for the job to create a performing and scalable solution - it is seldom that dynamically creating and dropping tables are part of such a solution.