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1 cze 2015 · If you specify ON DUPLICATE KEY UPDATE, and a row is inserted that would cause a duplicate value in a UNIQUE index or PRIMARY KEY, an UPDATE of the old row is performed. Please read URL for more details.
2 lut 2024 · Sometimes it may be required to Insert the data if the same data is already present in the table. In this article, we will look into the methods of updating data if already exists else insert the same data if the data does not exist, with examples.
13 mar 2022 · How to update if row exists else insert in SQL Server. Mar 13, 2022 by Beaulin Twinkle. While developing an application with a database, frequently you will need to provide an option to update the data if a row exists else insert a row.
20 sty 2015 · IF EXISTS(select * from test where id=30122) update test set name='john' where id=3012 ELSE insert into test(name) values('john'); Other approach for better performance is update test set name='john' where id=3012 IF @@ROWCOUNT=0 insert into test(name) values('john');
17 paź 2024 · MySQL provides two ways to insert a row into a table or update the row if it already exists. We can use the INSERT INTO … ON DUPLICATE KEY UPDATE syntax or the REPLACE statement.
29 kwi 2015 · IF EXISTS (select * from users where username = 'something') THEN. update users set id= 'some' where username = 'something'; ELSE. insert into users (username) values ('something'); END IF; end $$. delimiter ; and call it like this: call select_or_insert();
IF NOT EXISTS(SELECT * FROM Clock WHERE clockDate = '08/10/2012') AND userName = 'test') BEGIN. INSERT INTO Clock(clockDate, userName, breakOut) VALUES({ fn NOW() }, 'test', { fn NOW() }) END. ELSE. BEGIN. UPDATE Clock. SET breakOut = { fn NOW() }
