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3 cze 2022 · I want to change or update my ContactNo to 8018070999 where there is 8018070777 using Case statement. update [Contacts] set contactNo=(case when contactNo=8018070777 then 8018070999 else contactNo end)
3 wrz 2024 · CASE can be used in any statement or clause that allows a valid expression. For example, you can use CASE in statements such as SELECT, UPDATE, DELETE and SET, and in clauses such as <select_list> , IN, WHERE, ORDER BY, and HAVING.
20 kwi 2021 · CASE can not only be used in SELECT statements, but at any other place where an expression can be written. This includes UPDATE, DELETE, SET, MERGE, a WHERE or HAVING clause and an ORDER BY clause. Let’s illustrate with some examples.
26 cze 2023 · The CASE statement in the WHERE clause can conditionally filter rows based on defined criteria. The syntax for the CASE statement in the WHERE clause is shown below. The CASE expression matches the condition and returns the value of the first THEN clause.
11 lut 2020 · The following code does the UPDATE with a CASE statement: USE TestDB GO ALTER TABLE [User] DROP CONSTRAINT CK_User_Gender GO UPDATE [User] SET Gender = (CASE WHEN Gender='M' THEN '1' ELSE '0' END) SELECT * FROM [User]
23 maj 2023 · Changes existing data in a table or view in SQL Server. For examples, see Examples. Transact-SQL syntax conventions. UPDATE . [ TOP ( expression ) [ PERCENT ] ] . { { table_alias | <object> | rowset_function_limited . [ WITH ( <Table_Hint_Limited> [ ...n ] ) ] . | @table_variable . SET .
6 cze 2017 · Using CASE with UPDATE. The CASE expression can also be used in an UPDATE statement. You are familiar with the UPDATE statement; it changes or updates existing column values. If you want to update records based on column values, you can do it with the CASE expression. Look at the following example:
