deallocate [ Global ] cursor_name | cursor_variable_name --释放游标 deallocate orderNum_03_cursor 使用实例: USE Test_DB; DECLARE @jid CHAR(5) DECLARE @pic NVARCHAR(64) DECLARE My_Cursor CURSOR --定义游标 FOR (SELECT jid FROM journal WHERE isall in(1,2)) --查出需要的集合放到游标中 OP...
SQL is a set-based language, meaning operations are completed on all or rows of the result. However, there are times, when you want to do operation on a row by row basis. This is where cursors come in to play. What is a Database Cursor?
Again, it really depends on your situation. I almost always use a cursor to loop through records...
Scalar functions can be used wherever an expression is valid. Categories of scalar functions Expand table Function categoryDescription Configuration Functions Return information about the current configuration. Conversion Functions Support data type casting and converting. Cursor Functions Return information ...
SQL Server Management Studio (SSMS) 19.1 and Recent Changes, Part 3 This is the final post in a series covering changes in SSMS 19. Please review Part 1 and Part 2 for details about Microsoft.Data.Sqlclient, MSAL, removal of the SQL Vulnerability Assessment, and mor......
4 2 LIKE THIS MY STORED PROCEDURE IS LIKE THIS CREATE PROCEDURE BUYLOTTOGAME BEGIN TRANS SELECT @COUNT=COUNT FROM TABLENAME WITH UPDLOCK WHERE ID=@ID IF @COUNT>=@SOMECOUNT BEGIN ROLLBACK TRAN RETURN END UPDATE TABLENAME SET COUNT=COUNT+@INCONT WHERE ID=@ID ...
Collation is one of those settings in SQL Server that most of the developers would rather avoid understanding and just go with the defaults. At some point during the production life of an application, collations may decide to “strike back” causing unpredictable errors and frustration. This blog...
Server Compact Edition databases stored on a smart device or on the desktop computer by using SQL Server Management Studio in SQL Server 2005 or SQL Server Management Studio Express (SSMSE). The SSMSE user interface is a subset of SQL Server Management Studio. SSMSE is a free download from ...
'An operation was attempted on a nonexistent network connection' error 'bootstrap' is not a valid script name. The name must end in '.js'. 'Cannot implicitly convert 'System.TimeSpan' to 'System.DateTime' 'DayOfWeek' is not supported in LINQ to Entities.. 'get' is not recognized as ...
[MS-RDPEMSC]: Remote Desktop Protocol: Mouse Cursor Virtual Channel Extension Specifies the Remote Desktop Protocol: Mouse Cursor Virtual Channel Extension enables remoting of mouse cursor bitmap over the UDP transport. This is an extension to the Basic Connectivity and Graphics Remoting Pro...