How to specify a table column that is a PL/SQL reserved word

Question

I am writing the following trigger
CREATE OR REPLACE TRIGGER SMS_MSG_TR_B_U
BEFORE UPDATE ON sms_msg
FOR EACH ROW
BEGIN
IF :OLD.BODY != :NEW.BODY THEN
RAISE_APPLICATION_ERROR(-20001,'Invalid update');
END IF;
END SMS_MSG_TR_B_U;
and I get the following error: PLS-00306: wrong number or types of arguments in call to '!='
This is because BODY is a reserved word in PL/SQL but it is not in SQL.
I tried to quote it with " but this does not work.
Does anybody knows the syntax to be able to test a column that has the name of PL/SQL reserved word?

Answer 1

You are exactly right, BODY is of type CLOB. So the problem does not lie with the name of the column but the type.
Thanks!
<BLOCKQUOTE><font size="1" face="Verdana, Arial, Helvetica">quote:</font><HR>Originally posted by Gints Plivna ([email protected]):
Hmm, quite interesting
I tried:::::
SQL> create table sms_msg (body VARCHAr2(100));
Table created.
SQL> CREATE OR REPLACE TRIGGER SMS_MSG_TR_B_U
2 BEFORE UPDATE ON sms_msg
3 FOR EACH ROW
4 BEGIN
5 IF :OLD.BODY != :NEW.BODY THEN
6 RAISE_APPLICATION_ERROR(-20001,'Invalid update');
7 END IF;
8 END SMS_MSG_TR_B_U;
9 /
Trigger created.
SQL> show err
No errors.
SQL> insert into sms_msg values ('qaqa');
1 row created.
SQL> update sms_msg set BODY=body;
1 row updated.
SQL> update sms_msg set BODY='qaqa1';
update sms_msg set BODY='qaqa1'
ERROR at line 1:
ORA-20001: Invalid update
ORA-06512: at "GINTS2.SMS_MSG_TR_B_U", line 3
ORA-04088: error during execution of trigger 'GINTS2.SMS_MSG_TR_B_U'
So You can see no problem!
Maybe body is of some exotic data type like long or clob, blob?
Is valid to use "!=" for these data types?
P.S. I tried this example on 8.0.3 and 8.1.6<HR></BLOCKQUOTE>
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