在此连接上出现任何提取操作之前,@@FETCH_STATUS 没有定义。 CURSOR_STATUS函数在对于给定参数,CURSOR_STATUS显示游标声明是否已返回游标或结果集。基本语法【CURSOR_STATUS({'local' ,'cursor_name' }|{'global','cursor_name'}|{'variable','cursor_variable'})】其中有五个参数,具体意义如下。 CURSOR_STATUS(...
OPEN my_cursor FETCH NEXT FROM my_cursor INTO @id, @name WHILE @@fetch_status = 0 BEGIN -- 处理从游标中获取到的数据行 PRINT 'ID: ' + CAST(@id AS VARCHAR(10)) + ', Name: ' + @name FETCH NEXT FROM my_cursor INTO @id, @name END CLOSE my_cursor DEALLOCATE my_cursor ...
若要擷取特定資料指標的最後一個擷取狀態,請查詢 sys.dm_exec_cursors 動態管理函式的 fetch_status 資料行。 範例 此範例使用 @@FETCH_STATUS 控制WHILE 迴圈中的資料指標活動。 SQL 複製 DECLARE Employee_Cursor CURSOR FOR SELECT BusinessEntityID, JobTitle FROM AdventureWorks2022.HumanResources.Employee; OP...
fetchnextfromm_cursorinto@Address,@PeopleId while @@FETCH_STATUS=0 begin print @Address +convert(varchar(3), @PeopleId) fetchnextfromm_cursorinto@Address,@PeopleId end closem_cursor deallocatem_cursor 2.用于更新的游标 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 -- 定义...
@@FETCH_STATUS状态 应用方法 DO SOMETHING WITH CURSOR 一般会将提取到的值赋给变量,用于执行相关任务: 先声明变量名及类型,然后使用FETCH NEXT FROM Emp_Cursor INTO @A,@B,即可将游标内容赋给变量@A和@B。 此赋值操作是按列依次赋值给变量的,即第一列的值赋给@A,第二列的值赋给@B。
@@FETCH_STATUS (Transact-SQL) Artikel 2023-08-11 12 deltagare Feedback I den här artikeln Syntax Return Type Return Value Remarks Visa 2 fler Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance This function returns the status of the last cursor FETCH statement ...
@@FETCH_STATUS (Transact-SQL) Article 11/08/2023 12 contributors Feedback In this article Syntax Return Type Return Value Remarks Show 2 more Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance This function returns the status of the last cursor FETCH statement issued...
若要检索特定游标的最后提取状态,请查询 sys.dm_exec_cursors 动态管理函数的 fetch_status 列。 示例 此示例使用@@FETCH_STATUS来控制WHILE循环中的游标活动。 SQL DECLAREEmployee_CursorCURSORFORSELECTBusinessEntityID, JobTitleFROMAdventureWorks2022.HumanResources.Employee; OPEN Employee_Cursor; FETCH NEXT FROM ...
FETCH NEXT FROM myCursor INTO @myVar; WHILE @@FETCH_STATUS = 0 BEGIN --DO somthing; END CLOSE myCursor; DEALLOCATE myCursor; -- But @@FETCH_STATUS is global variable -- So if we use another Cursor within the loop, when inner loop is completed, @@FETCH_STATUS = -1, so the outer...
@@FETCH_STATUS (Transact-SQL) Article 09/04/2024 13 contributors Feedback In this article Syntax Return Type Return Value Remarks Show 2 more Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance This function returns the status of the last cursor FETCH statement issued against ...