Trigger error temporal database

6 C] create a tblemp_appntc table, which stores the account number, name and
tell me valid time, (dates of Recruiment and retirement).
Create a trigger for a valid time check that no two the same employee records have
common employment period and does not allow the user to update the records.
Trigger should also fill the empty retirement date.
______________________________________
Create Table tblempappntc to bom4: -.
______________________________________

SQL > connect hr/tiger@bom4;
Connected.

SQL > create table tblemp_appntc
() 2
3 acc_no number (8).
4 acc_name varchar2 (20).
date of recruit_date 5.
date of retire_date 6
(7);

Table created.


SQL > create trigger trig_insup_niket
2 before insert or update on tblemp_appntc
3 for each line
4 start
5 insert then
6 if(:new.recruit_date=:old.recruit_date) then
7 raise_application_error (-210000, 'failed to add record');
8 other
9 if(:new.retire_date=:old.recruit_date) then
10 raise_apllication_error (-220000, 'failed to add record');
11 other
12 dbms_output.put_line ("' record added successfully");
13 end if;
14 if (: new .acc_no is null) then
15 update tblemp_appntc set acc_no = 60;
16 ElseIf (: new .acc_name is null) then
17 update tblemp_appntc set acc
18 _name = 'comments ';
19 ElseIf (: new .recruit_date is null) then
20 update tblemp_appntc set recruit_date = March 12, 2010;
21 ElseIf (: new .retire_date is null) then
22 update tblemp_appntc set retire_date = 23-May-3010 ";
23 else
24 dbms_output.put_line ('update is not necessary');
25 end if;
26 end if;
27 if the update then
28 if(:old.acc_no!=:new.acc_no) then
29 raise_application_error (-230000,' record cannot be updated');
30 if(:old.acc_name!=:new.acc_name) else then
31 raise_application_error (-240000,' record cannot be updated');
32 if(:old.recruit_date!=:new.recruit_date) else then
raise_application_error 33 (-250000, 'record cannot be updated');
34 if(:old.retire_date!=:new.retire_date) else then
35 raise_application_error (-260000,' record cannot be updated');
36 on the other
37 dbms_output.put_line ('record updated successfully');
38 end if;
39 end if;
end 40;
41.

WARNING: Trigger created with compilation errors.

SQL > show errors;
Errors for TRIG_INSUP_NIKET TRIGGER:

LINE/COL ERROR
-------- -----------------------------------------------------------------
14/5 PL/SQL: statement ignored
14/34 PL/SQL: ORA-00911: invalid character
37/4 PLS-00103: encountered the symbol ";" when expecting one of the
Next:
If

you have

else if

that starts a new one IF... THEN... END IF construction... you are missing a lot of END IF

or use

ELSIF

This

recruit_date='12-Mar-2010'

you update a date with a string column...

Tags: Database

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