sql-server – 如何在while循环中手动中断游标.在sql server中

if while loop also having a break,if while loop hit break command  i t comes out of the loop and  if cursor hit break  command,how it come entire  out of the while loop
 
        for example: 
        DECLARE @CursorTest TABLE 
        (
        idcol INT,fld1 INT,fld2 INT,fld3 CHAR(800)
        )
 
        INSERT INTO @CursorTest (fld1,fld2,fld3)
 
        SELECT 1,RAND() * 100 * DATEPART(ms,GETDATE()),LEFT(REPLICATE(CAST(NEWID() AS VARCHAR(36)),30),800)
 
 
        DECLARE @Variable1 INT,@Variable2 INT
        DECLARE CursorName CURSOR FAST_FORWARD
        FOR
        SELECT idcol    FROM @CursorTest    
        OPEN CursorName
        FETCH NEXT FROM CursorName  INTO @Variable1
        WHILE @@FETCH_STATUS = 0
        BEGIN
 
 
            if (@Variable1 =10) 
            BEGIN
                BREAK
            END 
            PRINT CAST(@Variable1 AS VARCHAR(5))
 
 
 
        FETCH NEXT FROM CursorName  INTO @Variable1
 
        END
        CLOSE CursorName
        DEALLOCATE CursorName
 
 
 
    if cursor hit break  command,how it come entire  out of the while loop

如果while循环也有一个中断,如果while循环命中中断命令我退出循环并且如果光标命中break命令,它是如何完全退出while循环的

解决方法

你可以在WHILE循环中给出一些迭代光标的条件.第一个条件是@@ FETCH_STATUS,而其他条件就是你要打破循环

WHILE @@FETCH_STATUS = 0 OR @stopLoop = false
   BEGIN
      FETCH NEXT FROM Employee_Cursor;
      //your code
      if condition 
      BEGIN
          @stopLoop = true
      END 
   END;
CLOSE Employee_Cursor;

使用BREAK语句

WHILE @@FETCH_STATUS = 0 
   BEGIN
      FETCH NEXT FROM Employee_Cursor;
      //your code
      if condition 
      BEGIN
          BREAK
      END 
   END;
CLOSE Employee_Cursor;

sql-server – 如何在while循环中手动中断游标.在sql server中

解决方法

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