Getting error while reset sequence value

Question

i hve created two table. and a sequence for other table. i want to do that when i insert into a first table, entries of other table should be deleted and sequence value should reset to 1. For that i have executed the following sql code
but getting the error:
create or replace Trigger m_sale_ainsert_trig
after insert on m_sale_bill
for each row
begin
DELETE FROM M_TEMP;
<<COLUMN_SEQUENCES>>
BEGIN
Alter Sequence M_TEMP_SEQ Restart with 1;
END COLUMN_SEQUENCES;
end;
Alter Trigger m_sale_ainsert_trig enable;
Warning: execution completed with warning
Trigger m_sale_ainsert_trig Compiled.
Alter Trigger m_sale_ainsert_trig succeeded.
5/4 PLS-00103: Encountered the symbol "ALTER" when expecting one of the following:
( begin case declare exit for goto if loop mod null pragma
raise return select update while with <an identifier>
<a double-quoted delimited-identifier> <a bind variable> <<
continue close current delete fetch lock insert open rollback
savepoint set sql execute commit forall merge pipe purge
pls rectify it!!!!! what are the mistakes in this code?
Edited by: JKMourya on Mar 21, 2013 10:55 AM

Answer 1

JKMourya wrote:
i hve created two table. and a sequence for other table. i want to do that when i insert into a first table, entries of other table should be deleted and sequence value should reset to 1. For that i have executed the following sql code
but getting the error:
create or replace Trigger m_sale_ainsert_trig
after insert on m_sale_bill
for each row
begin
DELETE FROM M_TEMP;
<<COLUMN_SEQUENCES>>
BEGIN
Alter Sequence M_TEMP_SEQ Restart with 1;
END COLUMN_SEQUENCES;
end;
Alter Trigger m_sale_ainsert_trig enable;
Warning: execution completed with warning
Trigger m_sale_ainsert_trig Compiled.
Alter Trigger m_sale_ainsert_trig succeeded.
5/4 PLS-00103: Encountered the symbol "ALTER" when expecting one of the following:
( begin case declare exit for goto if loop mod null pragma
raise return select update while with <an identifier>
<a double-quoted delimited-identifier> <a bind variable> <<
continue close current delete fetch lock insert open rollback
savepoint set sql execute commit forall merge pipe purge
pls rectify it!!!!! what are the mistakes in this code?
Edited by: JKMourya on Mar 21, 2013 10:55 AMDDL inside PL/SQL is NOT allowed
you must (ab)use EXECUTE IMMEDIATE