EXECUTE IMMEDIATE Temp table in oracle does not get created ORA-00942

Question

Based on this answer I was trying to create temp table, however I am getting exception ORA-00942:table or view does not exist I would assume there is something wron

Answer 1

'CREATE OR REPLACE GLOBAL TEMPORARY TABLE TempQandA(column1 number) ON COMMIT PRESERVE ROWS';

The keyword REPLACE is incorrect. You need to simply create the GTT and insert the values into it using EXECUTE IMMEDIATE :

SQL> BEGIN
  2  EXECUTE IMMEDIATE 'CREATE GLOBAL TEMPORARY TABLE Temp_gtt(column1 number) ON COMMIT PRESERVE ROWS';
  3  EXECUTE IMMEDIATE 'insert into temp_gtt(column1) values(1)';
  4  END;
  5  /

PL/SQL procedure successfully completed.

SQL>
SQL> select * from temp_gtt;

   COLUMN1
----------
         1

SQL>