Need help in user privilage and triggers

Question

hi,
i need to create general users who can insert a row into a table but should not be able to delete any data, so which minimuim privilages i should assign.
grant connect session and grant resource or anything else?
and one more prob in triggers, i have written a trigger to trigger if expamt exceeds eclimit. i am gettin errors
create or replace
TRIGGER TR_EXCEEDLIMIT
AFTER INSERT OR UPDATE OF EXPAMT ON EXPENSEITEM
FOR EACH ROW
DECLARE
V_ECLIMIT EXPCAT.ECLIMIT%TYPE%;
BEGIN
SELECT ECLIMIT INTO V_ECLIMIT FROM EXPCAT
WHERE ECNO = :NEW.ECNO;
IF(:NEW.EXPAMT > V_ECLIMIT) THEN
INSERT INTO LOG_TABLE (excno, exctrigger, exctable, exckeyvalue, excdate, exctext) VALUES (LOG_SEQ.NEXTVAL, 'TR_EXCEEDLIMIT', 'EXPENSEITEM', :NEW.EINO, SYSTEMSTAMP, ('INSERTED OR UPDATED DATA OF EXPAMT EXCEEDS THE VALUE IN ECLIMIT');
ENDIF;
END TR_EXCEEDLIMIT;
errors
Error(7,30): PLS-00103: Encountered the symbol "%" when expecting one of the following: := ( ; not null range default character The symbol "%" was ignored.
Error(12,235): PLS-00103: Encountered the symbol ";" when expecting one of the following: ) , * & | = - + < / > at in is mod remainder not rem => .. <an exponent (**)> <> or != or ~= >= <= <> and or like LIKE2_ LIKE4_ LIKEC_ between overlaps || multiset year DAY_ member SUBMULTISET_ The symbol ")" was substituted for ";" to continue.
Error(14,5): PLS-00103: Encountered the symbol "TR_EXCEEDLIMIT" when expecting one of the following: if

Answer 1

You don't need to select the (sys)timestamp from dual, you can directly assign it:
create or replace trigger tr_exceedlimit
after insert or update of expamt on expenseitem
for each row
declare
v_eclimit   expcat.eclimit%type;
v_timestamp timestamp := systimestamp; -- or localtimestamp
begin
select eclimit into v_eclimit from expcat where ecno = :new.ecno;
if (:new.expamt > v_eclimit) then
  insert into log_table
   (excno, exctrigger, exctable, exckeyvalue, excdate, exctext)
  values
   (log_seq.nextval,
    'TR_EXCEEDLIMIT',
    'EXPENSEITEM',
    :new.eino,
    v_timestamp,
    'INSERTED OR UPDATED DATA OF EXPAMT EXCEEDS THE VALUE IN ECLIMIT'
  dbms_output.put_line('ERROR: EXAMT EXCEEDS ECLIMIT');
end if;
end tr_exceedlimit;You cannot use timestamp, but you can use localtimestamp or systimestamp.
See the Oracle Docs @ http://tahiti.oracle.com for more details on them (and triggers).
Also:
Error(15,5): PL/SQL: ORA-02289: sequence does not existCheck your LOG_SEQ sequence, does it exist and are privileges set correctly?
Edited by: hoek on Jan 26, 2010 8:20 AM typo in link