CASE (Transact-SQL) SQL Server 在 CASE 運算式中只允許 10 層的巢狀層級。 CASE 運算式無法用於控制 Transact-SQL 陳述式、陳述式區塊、使用者定義函數以及預存程序的執行流程。 如需流程 ...
UPDATE from SELECT using SQL Server - Stack Overflow In SQL Server you can insert into a table using a select statement: INSERT INTO table(col,col2,col3) SELECT col,col2,col3 FROM other_table WHERE sql = 'cool' How can I update ...
SQL Server Update: "Using CASE Expressions" ELSE 'Unknown' END, FROM titles This statement would return results similar to these: Title Price ... ...
Using CASE Statements In A SQL UPDATE Query - Ben Nadel 30 Aug 2007 ... UPDATE TABLE SET. A (only if its null)= B.a ,X= B.x ... I want to set the age to Null if it is less than 18
I want to use CASE statement to update some records in sql ... 2013年4月2日 - I want to use CASE statement to update some records in sql server 2005 ... TestStudents SET LASTNAME = ( CASE WHEN (LASTNAME ...
T-SQL: Using a CASE in an UPDATE statement to update ... 2011年1月28日 - UPDATE table SET (CASE (CONDITION) WHEN TRUE THEN ... The only way to do specifically what you're asking is to use dynamic SQL.
sql server - SQL update rows in column using CASE ... 2013年1月17日 - I have two tables, Users and #TempTable (which is a subset of Users). I would like to update a column, IsActive, in the Users table. I would like ...
Use CASE in the UPDATE statement : Case « Select Query ... p1 Search Engine 120000 p2 Programming 95000 p3 SQL 186500 (3 rows affected) 1> 2> -- Use CASE in the UPDATE statement. 3> 4> UPDATE project SET ...
CASE (Transact-SQL) - MSDN - Microsoft CASE 可以用在允許有效運算式的任何陳述式或子句中。 例如，您可以在SELECT、UPDATE、DELETE 和SET 之類的陳述式，以及select_list、IN、WHERE、ORDER ...
UPDATE (Transact-SQL) WHERE Specifies the conditions that limit the rows that are updated. There are two forms of update based on which form of the WHERE clause is used: Searched updates specify a search condition to qualify the rows to delete. Positioned updates use the ...
