I was running an example from some site and I completed the requirements of that example with the below error : select empno, ename, sal, to_char(null) as "Transfer Date" from emp
UNION select empno,ename,sal,tdate from emp6; select empno, ename, sal, to_char(null) as "Transfer Date" from emp * ERROR at line 1: ORA-01790: expression must have same datatype as corresponding expression -- You received this message because you are subscribed to the Google Groups "Oracle PL/SQL" group. To post to this group, send email to Oracle-PLSQL@googlegroups.com To unsubscribe from this group, send email to oracle-plsql-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/Oracle-PLSQL?hl=en