If i insert record in table A and these record should update in table B by using

If i insert record in table A and these record should update in table B by using Trigger.How to achieve this.

Question Posted / revathi

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If i insert record in table A and these record should update in table B by using Trigger.How to achi..

Answer / anil

CREATE table trg_tab
(ename VARCHAR(10),
sal NUMBER);
/
CREATE table log_tab
(usr VARCHAR(10),
upd DATE,
ename VARCHAR(10),
sal NUMBER
);
/
CREATE OR REPLACE TRIGGER log_trg
AFTER INSERT ON trg_tab
FOR EACH ROW
DECLARE
v_user VARCHAR(10);
BEGIN
SELECT USER
INTO v_user
FROm DUAL;
INSERT INTO log_tab
VALUES (v_user,SYSDATE,:NEW.ename,:NEW.sal);
END;
/
INSERT INTO trg_tab
SELECT ename,sal FROm emp;
/
SELECT * FROm log_tab;
/

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7 Yes

1 No

If i insert record in table A and these record should update in table B by using Trigger.How to achi..

Answer / abhishek jaiswal

Table 1(U_register)
Name Null? Type
----------------------------------------- -------- ----------------------------
FIRST_NAME PK VARCHAR2(15)
LAST_NAME NOT NULL VARCHAR2(15)
DOB NOT NULL DATE
USER_NAME NOT NULL VARCHAR2(15)
NEW_PASSWORD NOT NULL VARCHAR2(15)
CONFIRM_PASSWORD NOT NULL VARCHAR2(15)
U_ID NOT NULL NUMBER

Table 2(Login_detail)

Name Null? Type
-------------------------FK---------------- -------- ----------------------------
ID NOT NULL NUMBER
USER_NAME VARCHAR2(15)
NEW_PASSWORD VARCHAR2(15)

Now,We have to write trigger to insert of column 'user_name' and 'new_password' in login_detail table.
To do this we will use After insert trigger.

create or replace
trigger tgr_login
after insert on u_register
for each row
begin
insert into login_detail
values (:new.u_id,:new.user_name,:new.new_password);
end tgr_login;

---and It will work .

Is This Answer Correct ?

2 Yes

0 No

If i insert record in table A and these record should update in table B by using Trigger.How to achi..

Answer / abhishekjaiswal

Table 1(u_register) Parent table
Name Null? Type
----------------------------------------- -------- ----------------------
FIRST_NAME VARCHAR2(15)
LAST_NAME NOT NULL VARCHAR2(15)
DOB NOT NULL DATE
USER_NAME NOT NULL VARCHAR2(15)
NEW_PASSWORD NOT NULL VARCHAR2(15)
CONFIRM_PASSWORD NOT NULL VARCHAR2(15)
U_ID NOT NULL NUMBER

table 2(login_detail) Child table
Name Null? Type
----------------------------------------- -------- ----------------------
ID NOT NULL NUMBER
USER_NAME VARCHAR2(15)
NEW_PASSWORD VARCHAR2(15)

Now we will create trigger to insert column 'user_name','new_password' of u_register into column 'USER_NAME ','NEW_PASSWORD' of login_detail.We will use after insert trigger as

create or replace
trigger tgr_login
after insert on u_register
for each row
begin
insert into login_detail
values (:new.u_id,:new.user_name,:new.new_password);
end tgr_login;

It will work for sure.

Is This Answer Correct ?

1 Yes

0 No

If i insert record in table A and these record should update in table B by using Trigger.How to achi..

Answer / shwetha

CREATE TABLE A1(ID NUMBER(2),NAMES VARCHAR2(30))

CREATE TABLE B1(ID NUMBER(2),NAMES VARCHAR2(30),STATUS VARCHAR2(10))

CREATE OR REPLACE TRIGGER A1B1
AFTER INSERT ON A1
FOR EACH ROW
BEGIN
INSERT INTO B1 VALUES(:NEW.ID, :NEW.NAMES,'Y');
END;

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