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CREATE TABLE table1_seq ( id INT NOT NULL AUTO_INCREMENT PRIMARY KEY ); CREATE TABLE Table1 ( id VARCHAR(7) NOT NULL PRIMARY KEY DEFAULT '0', name VARCHAR(30) ); CREATE TRIGGER tg_table1_insert BEFORE INSERT ON table1 FOR EACH ROW BEGIN INSERT INTO table1_seq VALUES (NULL); SET NEW.id = CONCAT('LHPL', LPAD(LAST_INSERT_ID(), 3, '0')); END ; INSERT INTO Table1 (name) VALUES ('Jhon'), ('Mark');

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