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mysql - having
DROP TABLE IF EXISTS tutorials_tbl; create table tutorials_tbl( tutorial_id INT NOT NULL AUTO_INCREMENT, tutorial_title VARCHAR(100) NOT NULL, tutorial_author VARCHAR(40) NOT NULL, submission_date DATE, datetime DATETIME, timestamp TIMESTAMP, year YEAR, PRIMARY KEY ( tutorial_id ) ); INSERT INTO tutorials_tbl (tutorial_title, tutorial_author, submission_date,datetime,year) VALUES ("Learn PHP", "John Poul", NOW(),NOW(),NOW()); INSERT INTO tutorials_tbl (tutorial_title, tutorial_author, submission_date,datetime,year) VALUES ('2'|1|'7', "John Poul", '1973-12-30''','1973-12-30''',1901-1||1901-0); SELECT COUNT(tutorial_id), tutorial_author FROM tutorials_tbl GROUP BY tutorial_author HAVING COUNT(tutorial_id) =2 and 1=1;
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