Two Oracle Questions

Question

i am not being able to create a table with varchar2(32767). i want to avoid long because it has been deprecated from 8i.
how can i know what is the error name corresponding to an oracle exception number SQLCODE? for example ORA-01422 corresponds to TOO_MANY_ROWS. so if i am expecting more than one rows in my select... into clause, then i can define WHEN TOO_MANY_ROWS THEN in my exception and handle it. or do i have to use when OTHERS only

Answer 1

user637544 wrote:
i am not being able to create a table with varchar2(32767). i want to avoid long because it has been deprecated from 8i.
What is Oracle version??
32767 is the limit in PL/SQL. SQL has less limit. In SQL maximum length can be 4000 only. See the link for more details
http://download.oracle.com/docs/cd/B19306_01/server.102/b14200/sql_elements001.htm#sthref76
how can i know what is the error name corresponding to an oracle exception number SQLCODE? for example ORA-01422 corresponds to TOO_MANY_ROWS. so if i am expecting more than one rows in my select... into clause, then i can define WHEN TOO_MANY_ROWS THEN in my exception and handle it. or do i have to use when OTHERS onlyWhen Oracle raise any exception you can use SQLERRM to know the error message. Oracle have provided a function also SQLERRM() in which you can pass the Oracle error number and you will get the error message.
SQL> ed
Wrote file afiedt.buf
  1  DECLARE
  2   X varchar2(1);
  3  BEGIN
  4  SELECT dummy INTO X from DUAL WHERE 1=0;
  5  EXCEPTION
  6   WHEN OTHERS THEN
  7    DBMS_OUTPUT.PUT_LINE(SQLERRM(-SQLCODE));
  8* END;
SQL> /
PL/SQL procedure successfully completed.
SQL> set serveroutput on
SQL> /
ORA-00100: no data found
PL/SQL procedure successfully completed.
SQL>Cheers,