SQL Server存储过程中 WHILE @@FETCH_STATUS=0 作用:Sql中的游标指针的位置判断。代表游标读取下一条数据是否成功!FETCH_STATUS状态有三种: 0, FETCH 语句成功 -1, FETCH 语句失败或此行不在结果集中 -2, 被提取的行不存在 @@fetch_status值的改变是通过fetch next from实现的 “FETCH NEXT FROM Cursor” 0...
SQL语句:SQLwhile(0=0)与while @@fetch_status=0. 第一句是SQL循环用的,这个条件下,会读取所有的记录,因为会一直循环; 第二句是游标里的,@@fetch_status=0 等于0时,说明游标是成功的.
以下示例使用@@FETCH_STATUS来控制WHILE循环中的游标活动。 SQL DECLARE@EmployeeIDASNVARCHAR(256)DECLARE@TitleASNVARCHAR(50)DECLAREEmployee_CursorCURSORFORSELECTLoginID, JobTitleFROMAdventureWorks2022.HumanResources.EmployeeWHEREJobTitle ='Marketing Specialist'; OPEN Employee_Cursor; FETCH NEXT FROM Employee_Curs...
B. Use WHILE in a cursor The following example uses@@FETCH_STATUSto control cursor activities in aWHILEloop. SQL DECLARE@EmployeeIDASNVARCHAR(256)DECLARE@TitleASNVARCHAR(50)DECLAREEmployee_CursorCURSORFORSELECTLoginID, JobTitleFROMAdventureWorks2022.HumanResources.EmployeeWHEREJobTitle ='Marketing Speciali...
@@FETCH_STATUS in nested loops @@ServerName returns wrong value in SQL SERVER 2008 ##TempTable and INSERT-SELECT FROM an existing Table with an IDENTITY column %rowtype equivalent in SQL server ++ operator in TSQL - bug or feature? 2 tables referencing each other using foreign key.is it ...
Error: "Attempt to fetch password of a group managed service account failed." (error 6) Error: 1726 (the remote procedure call failed) every 7 minutes + DFSR backlogs ERROR: Some users have been signed in with a temporary profile. Error: The directory service is unavailable ERROR: The RPC...
以下示例使用 @@FETCH_STATUS 来控制 WHILE 循环中的游标活动。 SQL 复制 DECLARE @EmployeeID AS NVARCHAR(256) DECLARE @Title AS NVARCHAR(50) DECLARE Employee_Cursor CURSOR FOR SELECT LoginID, JobTitle FROM AdventureWorks2022.HumanResources.Employee WHERE JobTitle = 'Marketing Specialist'; OPEN Employ...
以下示例使用@@FETCH_STATUS来控制WHILE循环中的游标活动。 SQL DECLARE@EmployeeIDASNVARCHAR(256)DECLARE@TitleASNVARCHAR(50)DECLAREEmployee_CursorCURSORFORSELECTLoginID, JobTitleFROMAdventureWorks2022.HumanResources.EmployeeWHEREJobTitle ='Marketing Specialist'; OPEN Employee_Cursor; FETCH NEXT FROM Employee_Curs...
B. Use WHILE in a cursor The following example uses@@FETCH_STATUSto control cursor activities in aWHILEloop. SQL DECLARE@EmployeeIDASNVARCHAR(256)DECLARE@TitleASNVARCHAR(50)DECLAREEmployee_CursorCURSORFORSELECTLoginID, JobTitleFROMAdventureWorks2022.HumanResources.EmployeeWHEREJobTitle ='Marketing Speciali...
while (@@FETCH_STATUS=0) begin set @i=@i+1 set @sql='fetch next from mycursor into @date'+cast(@i as varchar) exec(@sql) end 你这样不行的。 不可能直接执行 fetch 当成动太语句。它与游标是一个整体,你要全部加入动态sql.这样还不如不加.你可以用一个表来存储啊。或者直接就在选出的集...