After insert trigger mutation of error, what is the way to overcome it.

I have two tables namely profiles_answers and user_profileanswers. Based on the requirement that is: when a user inserts the answer in the table of user_profileanswers I need to calculate the weight-age of this issue with the many options available in the profiles_answers table and update this table user_profileanswers age-weight. So, for that, I wrote the following after trigger insert. But when I try to insert it throws me error mutation. As I update the table, used to insert action in the trigger. Please let me how can know I solve this problem.

create or replace

AI_weightageCaluculation TRIGGER AFTER

FOR EACH row INSERT on user_profileanswers

BEGIN

DECLARE

v_a VARCHAR2 (50);

YaeUb VARCHAR2 (50);

V_c VARCHAR2 (50);

v_d VARCHAR2 (50);

ve VARCHAR2 (50);

a_weightage NUMBER;

b_weightage NUMBER;

c_weightage NUMBER;

d_weightage NUMBER;

e_weightage NUMBER;

BEGIN

SELECT option_a, option_b, option_c, option_d, option_e IN

v_a, YaeUb, v_c, v_d, profiles_answers FROM ve

WHERE profile_questions_id =: new.profilequestion_id;

IF (v_a IS NOT NULL AND YaeUb IS NOT NULL AND v_c IS NOT NULL AND v_d IS NOT NULL AND EV IS NOT NULL) THEN

BEGIN

a_weightage: = 85;

b_weightage: = 60;

c_weightage: = 45;

d_weightage: = 30;

e_weightage: = 15;

END;

ELSIF (v_a IS NOT NULL AND YaeUb IS NOT NULL AND v_c IS NOT NULL AND v_d IS NOT NULL AND ve IS NULL) THEN

BEGIN

a_weightage: = 85;

b_weightage: = 60;

c_weightage: = 30;

d_weightage: = 15;

END;

ELSIF (v_a IS NOT NULL AND YaeUb IS NOT NULL AND v_c IS NOT NULL AND v_d IS NULL AND ve IS NULL) THEN

BEGIN

a_weightage: = 85;

b_weightage: = 45;

c_weightage: = 15;

END;

ON THE OTHER

BEGIN

a_weightage: = 85;

b_weightage: = 15;

END;

END IF;

IF: new.answer = 'A' THEN

BEGIN

UPDATE user_profileanswers

SET weightage = a_weightage

WHERE user_id =: new.user_id

AND profileanswer_id =: new.profileanswer_id

AND profilequestion_id =: new.profilequestion_id;

END;

ELSIF: new.answer = 'B' THEN

BEGIN

UPDATE user_profileanswers

SET weightage = b_weightage

WHERE user_id =: new.user_id

AND profileanswer_id =: new.profileanswer_id

AND profilequestion_id =: new.profilequestion_id;

END;

ELSIF: new.answer = 'C' THEN

BEGIN

UPDATE user_profileanswers

SET weightage = c_weightage

WHERE user_id =: new.user_id

AND profileanswer_id =: new.profileanswer_id

AND profilequestion_id =: new.profilequestion_id;

END;

ELSIF: new.answer = ' THEN

BEGIN

UPDATE user_profileanswers

SET weightage = d_weightage

WHERE user_id =: new.user_id

AND profileanswer_id =: new.profileanswer_id

AND profilequestion_id =: new.profilequestion_id;

END;

ON THE OTHER

BEGIN

UPDATE user_profileanswers

SET weightage = e_weightage

WHERE user_id =: new.user_id

AND profileanswer_id =: new.profileanswer_id

AND profilequestion_id =: new.profilequestion_id;

END;

END IF;

END;

END;

Thanks in advance.

Hmm... Why do after insertion?

CREATE OR REPLACE TRIGGER BI_weightageCaluculation

FRONT INSERT ON user_profileanswers FOR EACH ROW

BEGIN

SELECT BOX: NEW. RESPONSE

WHEN 'A' a_weight THEN

WHEN 'B' THEN b_weight

WHEN 'C' THEN c_weight

When ' THEN d_weight

Of OTHER e_weight

END

in: new.weightage

(SELECT 85 a_weight

Case option_result

WHEN 31 THEN 60

WHEN 15 THEN 60

WHEN 7 THEN 45

another 15

end b_weight

Case option_result

WHEN 31 THEN 45

WHEN 15, THEN 30

When 7 then 15

END c_weight

Case option_result

WHEN 31 THEN 30

When 15 then 15

END d_weight

Case option_result

WHEN 31 THEN 15

END e_weight

FROM (SELECT DECODE (option_a, NULL, 0, 1) +)

Decode (option_b, NULL, 0, 2) +.

Decode (option_c, NULL, 0, 4) +.

Decode (option_d, NULL, 0, 8) +.

Decode(option_e,,0,16) option_result

OF profiles_answers

WHERE profile_questions_id =: new.profilequestion_id));

END;

/

HTH

Tags: Database

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