SQL UPDATE 語句 - w3school 在線教程 SQL update SQL delete SQL 高級教程 SQL Top SQL Like SQL 通配符 SQL In SQL Between SQL Aliases SQL Join SQL Inner Join SQL Left Join SQL Right Join SQL Full Join SQL Union SQL Select Into SQL Create DB SQL ...
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 ...
Head First SQL: Hands-On SQL UPDATE/SET/CASE Hands On SQL. Page 24: UPDATE/SET/CASE. Try updating movie_table with the statements on page 239. UPDATE movie_table SET category = 'drama' where ...
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 ...
SQL Server: Use a CASE Expression in an Update Statement ... We can use various DML statements like INSERT, SELECT, DELETE and UPDATE with a CASE statement. ... If it is NULL, then update the value with the sal column of the employee ...
CASE (Transact-SQL) TRUE 時，所傳回的運算式。如果省略這個引數，且沒有比較運算得出 TRUE，CASE 便傳回 NULL 。else_result_expression 是任何有效的運算式。else_result_expression 和每個 result_expression 的資料類型都必須相同，或必須能夠隱含地 ...
