Case in update statement mysql

2020-02-23 04:00 In its simplest form, the syntax for the UPDATE statement when updating one table in MySQL is: UPDATE table SET column1 expression1, column2 expression2, [WHERE conditions; However, the full syntax for the MySQL UPDATE statement when updating one table is:

update dbo. teststudents set lastname ( case when (lastname 'aaa') then 'bbb' when (lastname 'ccc') then 'ddd' when (lastname 'eee') then 'fff' else (lastname) end ) The statement work for the purpose but the else condition scan through every record in the table. case in update statement mysql

I'm trying to update a column in SQL Server 2016 using CASE statement because I have to change the value based on different conditions. The problem is that I have more than 10 conditions and it seems that SQL Server allows for only 10 levels of condition at most.

Nov 13, 2010 update statement in mysql update statement in mysql Update statement to update the existing records in database table. The given code creates a mysql connection and use the update query to update the record. To update record, we write query case in update statement mysql

Jan 19, 2001  We can use the CASE statement to update multiple columns in a table, even using separate update criteria for each column. This example updates the publishers table to set the state column to for nonUSA companies, and changes the city With this update statement, if parkFK is 2, then the update fails because the CASE can't handle the input. You can either limit your source data by adding another line to your whereclause (e. g. AND partFK in (1, 2)), or you could add an ELSE to the case expression. Aug 30, 2007  Nothing revolutionary here, I just recently tried to use a SQL CASE statement as part of an SQL UPDATE statement. I had never tried this before and I am quite happy that it works. I am working on a transactional system that allows for the voiding of case in update statement mysql The CASE statement cannot have an ELSE NULL clause, and it is terminated with END CASE instead of END. For the first syntax, casevalue is an expression. This value is compared to the whenvalue expression in each WHEN clause until one of them is equal. When an equal whenvalue is found, the corresponding THEN clause statementlist executes.

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You don't need wildcards in the REPLACE it just finds the string you enter for the second argument, so the following should work: UPDATE dbo. xxx SET Value REPLACE(Value, '123\ ) WHERE ID 4 (I also added the \ in the replace as I assume you don't need that either)

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