Add Partition

Question

I'm using Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production and TNS for Linux: Version 11.2.0.3.0 - Production.
Requirement is to create a script to add a LIST partition to some selected tables in a schema (tables do not have data, they are not partitioned). There are about 300 such tables (can vary) and their names are maintained in a separate table.
Example -
Existing table  -
CREATE TABLE test_part
(id number (2),
name varchar2(20),
audit_userid number (9));
Expected table -
CREATE TABLE test_part
(id number (2),
name varchar2(20),
audit_userid number (9))
   PARTITION BY LIST (audit_userid)
      (PARTITION p1_audit_userid VALUES (1));
Ultimate goal is to add more partitions based on the amount of data to be populated.
Appreciate your help!

Answer 1

What is the purpose of these partitions?:
   PARTITION BY LIST (audit_userid)
      (PARTITION p1_audit_userid VALUES (1));
The partitions have to include ALL expected values (or a DEFAULT partition), otherwise if you try to insert an "audit_userid" not in the list it will give error:
ORA-14400: inserted partition key does not map to any partition
Perhaps you could provide some "real world" requirements of what you want to accomplish with this partitioning.