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1 cze 2015 · IF EXISTS (SELECT * FROM Allowance WHERE EmployeeID =10000001 and Year = 2014 and Month = 4) UPDATE Allowance. SET OverTime = 10.00, Medical = 10.00, Lunch = 10.45, Bonus =10.10, Allowance = 40.55. WHERE EmployeeID =10000001 and Year = 2014 and Month = 4. ELSE.
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();
In this article, we would like to show you UPDATE query with IF condition in MySQL. Quick solution: UPDATE `table_name` SET `column_name` = IF(condition , if_true, if_false); Practical example. To show UPDATE query with IF condition, we will use the following users table:
17 paź 2024 · The MERGE statement in SQL can insert a new record into a table or update the existing record if it already exists. It is supported by databases like Oracle, SQL Server, and PostgreSQL. Let’s look at how we can use the MERGE statement: MERGE INTO Department AS target.
5 gru 2019 · Equivalent for EXISTS() in an IF statement? In the dialect for procedural SQL in MSSQL and Sybase, there's a useful little idiom for checking whether rows exist on a table, and it looks like this... if exists (select 'x' from foo where bar) /* found, do something */ else /* not found, do something else */.
19 lip 2022 · update customers_dim cd set ( full_name, update_datetime ) = ( select cs.full_name, systimestamp from customers_stage cs where cs.customer_id = cd.customer_id ) where exists ( select null from customers_stage ce where ce.customer_id = cd.customer_id )
11 lis 2015 · You could use the SQL%ROWCOUNT Oracle variable: UPDATE table1 SET field2 = value2, field3 = value3 WHERE field1 = value1; IF (SQL%ROWCOUNT = 0) THEN INSERT INTO table (field1, field2, field3) VALUES (value1, value2, value3); END IF;
