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MySQL Trigger Automatic Update
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<blockquote data-quote="geeko" data-source="post: 29074169" data-attributes="member: 465247"><p>code eka venas kala. dan trigger karaddi error ekak enne na. eth one karana function eke venne na</p><p></p><p>DELIMITER $$</p><p></p><p>CREATE TRIGGER update_winner_trigger AFTER UPDATE ON oc_t_item_meta </p><p>FOR EACH ROW </p><p>BEGIN</p><p> -- Check if m1_value is greater than current timestamp</p><p> IF (SELECT m1.s_value FROM oc_t_item_meta AS m1 WHERE m1.fk_i_item_id = NEW.fk_i_item_id AND m1.fk_i_field_id = 16) > UNIX_TIMESTAMP() THEN</p><p> -- Update winner based on m2_value and bidding price</p><p> IF (SELECT m2.s_value FROM oc_t_item_meta AS m2 WHERE m2.fk_i_item_id = NEW.fk_i_item_id AND m2.fk_i_field_id = 15) >= a.bidding_price THEN</p><p> UPDATE oc_t_auction AS a </p><p> JOIN oc_t_item AS i ON a.item_id = i.pk_i_id </p><p> SET a.winner = 1</p><p> WHERE a.item_id = NEW.fk_i_item_id;</p><p> END IF;</p><p> -- If m1_value is not greater than current timestamp, check i.dt_expiration</p><p> ELSEIF (SELECT i.dt_expiration FROM oc_t_item AS i WHERE i.pk_i_id = NEW.fk_i_item_id) > UNIX_TIMESTAMP() THEN</p><p> -- Update winner based on m2_value and bidding price</p><p> IF (SELECT m2.s_value FROM oc_t_item_meta AS m2 WHERE m2.fk_i_item_id = NEW.fk_i_item_id AND m2.fk_i_field_id = 15) >= a.bidding_price THEN</p><p> UPDATE oc_t_auction AS a </p><p> JOIN oc_t_item AS i ON a.item_id = i.pk_i_id </p><p> SET a.winner = 1</p><p> WHERE a.item_id = NEW.fk_i_item_id;</p><p> END IF;</p><p> ELSE</p><p> -- If neither condition is met, set the winner column to 0</p><p> UPDATE oc_t_auction AS a </p><p> JOIN oc_t_item AS i ON a.item_id = i.pk_i_id </p><p> SET a.winner = 0</p><p> WHERE a.item_id = NEW.fk_i_item_id;</p><p> END IF;</p><p>END;</p><p>$$</p><p></p><p>DELIMITER ;</p><hr /><p></p><p>DELIMITER $$</p><p></p><p>CREATE TRIGGER update_winner_trigger AFTER UPDATE ON oc_t_item_meta </p><p>FOR EACH ROW </p><p>BEGIN</p><p> -- Check if m1_value is greater than current timestamp</p><p> IF (SELECT m1.s_value FROM oc_t_item_meta AS m1 WHERE m1.fk_i_item_id = NEW.fk_i_item_id AND m1.fk_i_field_id = 16) > UNIX_TIMESTAMP() THEN</p><p> -- Update winner based on m2_value and bidding price</p><p> IF (SELECT m2.s_value FROM oc_t_item_meta AS m2 WHERE m2.fk_i_item_id = NEW.fk_i_item_id AND m2.fk_i_field_id = 15) >= a.bidding_price THEN</p><p> UPDATE oc_t_auction AS a </p><p> JOIN oc_t_item AS i ON a.item_id = i.pk_i_id </p><p> SET a.winner = 1</p><p> WHERE a.item_id = NEW.fk_i_item_id;</p><p> END IF;</p><p> -- If m1_value is not greater than current timestamp, check i.dt_expiration</p><p> ELSEIF (SELECT i.dt_expiration FROM oc_t_item AS i WHERE i.pk_i_id = NEW.fk_i_item_id) > UNIX_TIMESTAMP() THEN</p><p> -- Update winner based on m2_value and bidding price</p><p> IF (SELECT m2.s_value FROM oc_t_item_meta AS m2 WHERE m2.fk_i_item_id = NEW.fk_i_item_id AND m2.fk_i_field_id = 15) >= a.bidding_price THEN</p><p> UPDATE oc_t_auction AS a </p><p> JOIN oc_t_item AS i ON a.item_id = i.pk_i_id </p><p> SET a.winner = 1</p><p> WHERE a.item_id = NEW.fk_i_item_id;</p><p> END IF;</p><p> ELSE</p><p> -- If neither condition is met, set the winner column to 0</p><p> UPDATE oc_t_auction AS a </p><p> JOIN oc_t_item AS i ON a.item_id = i.pk_i_id </p><p> SET a.winner = 0</p><p> WHERE a.item_id = NEW.fk_i_item_id;</p><p> END IF;</p><p>END;</p><p>$$</p><p></p><p>DELIMITER ;</p><p></p><p></p><p>if else dala venas kala ban. dan error eka enne na eth one karana de venne na</p><p>------ <span style="font-size: 10px">Post added on [DATETIME="UT"]1690885600[/DATETIME]</span></p></blockquote><p></p>
[QUOTE="geeko, post: 29074169, member: 465247"] code eka venas kala. dan trigger karaddi error ekak enne na. eth one karana function eke venne na DELIMITER $$ CREATE TRIGGER update_winner_trigger AFTER UPDATE ON oc_t_item_meta FOR EACH ROW BEGIN -- Check if m1_value is greater than current timestamp IF (SELECT m1.s_value FROM oc_t_item_meta AS m1 WHERE m1.fk_i_item_id = NEW.fk_i_item_id AND m1.fk_i_field_id = 16) > UNIX_TIMESTAMP() THEN -- Update winner based on m2_value and bidding price IF (SELECT m2.s_value FROM oc_t_item_meta AS m2 WHERE m2.fk_i_item_id = NEW.fk_i_item_id AND m2.fk_i_field_id = 15) >= a.bidding_price THEN UPDATE oc_t_auction AS a JOIN oc_t_item AS i ON a.item_id = i.pk_i_id SET a.winner = 1 WHERE a.item_id = NEW.fk_i_item_id; END IF; -- If m1_value is not greater than current timestamp, check i.dt_expiration ELSEIF (SELECT i.dt_expiration FROM oc_t_item AS i WHERE i.pk_i_id = NEW.fk_i_item_id) > UNIX_TIMESTAMP() THEN -- Update winner based on m2_value and bidding price IF (SELECT m2.s_value FROM oc_t_item_meta AS m2 WHERE m2.fk_i_item_id = NEW.fk_i_item_id AND m2.fk_i_field_id = 15) >= a.bidding_price THEN UPDATE oc_t_auction AS a JOIN oc_t_item AS i ON a.item_id = i.pk_i_id SET a.winner = 1 WHERE a.item_id = NEW.fk_i_item_id; END IF; ELSE -- If neither condition is met, set the winner column to 0 UPDATE oc_t_auction AS a JOIN oc_t_item AS i ON a.item_id = i.pk_i_id SET a.winner = 0 WHERE a.item_id = NEW.fk_i_item_id; END IF; END; $$ DELIMITER ; [HR][/HR] DELIMITER $$ CREATE TRIGGER update_winner_trigger AFTER UPDATE ON oc_t_item_meta FOR EACH ROW BEGIN -- Check if m1_value is greater than current timestamp IF (SELECT m1.s_value FROM oc_t_item_meta AS m1 WHERE m1.fk_i_item_id = NEW.fk_i_item_id AND m1.fk_i_field_id = 16) > UNIX_TIMESTAMP() THEN -- Update winner based on m2_value and bidding price IF (SELECT m2.s_value FROM oc_t_item_meta AS m2 WHERE m2.fk_i_item_id = NEW.fk_i_item_id AND m2.fk_i_field_id = 15) >= a.bidding_price THEN UPDATE oc_t_auction AS a JOIN oc_t_item AS i ON a.item_id = i.pk_i_id SET a.winner = 1 WHERE a.item_id = NEW.fk_i_item_id; END IF; -- If m1_value is not greater than current timestamp, check i.dt_expiration ELSEIF (SELECT i.dt_expiration FROM oc_t_item AS i WHERE i.pk_i_id = NEW.fk_i_item_id) > UNIX_TIMESTAMP() THEN -- Update winner based on m2_value and bidding price IF (SELECT m2.s_value FROM oc_t_item_meta AS m2 WHERE m2.fk_i_item_id = NEW.fk_i_item_id AND m2.fk_i_field_id = 15) >= a.bidding_price THEN UPDATE oc_t_auction AS a JOIN oc_t_item AS i ON a.item_id = i.pk_i_id SET a.winner = 1 WHERE a.item_id = NEW.fk_i_item_id; END IF; ELSE -- If neither condition is met, set the winner column to 0 UPDATE oc_t_auction AS a JOIN oc_t_item AS i ON a.item_id = i.pk_i_id SET a.winner = 0 WHERE a.item_id = NEW.fk_i_item_id; END IF; END; $$ DELIMITER ; if else dala venas kala ban. dan error eka enne na eth one karana de venne na ------ [SIZE=2]Post added on [DATETIME="UT"]1690885600[/DATETIME][/SIZE] [/QUOTE]
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