可以使用游标来做到这一点:

创建函数[dbo].f_teste_loop 返回@tabela表 （ 鳕鱼int, 省varchar (10) ） 作为 开始

insert into @tabela values (1, 'verde');
insert into @tabela values (2, 'amarelo');
insert into @tabela values (3, 'azul');
insert into @tabela values (4, 'branco');

return;

end

创建过程[dbo].[sp_test_loop] 作为 开始

DECLARE @cod int, @nome varchar(10);

DECLARE curLoop CURSOR STATIC LOCAL 
FOR
SELECT  
    cod
   ,nome
FROM 
    dbo.f_teste_loop();

OPEN curLoop;

FETCH NEXT FROM curLoop
           INTO @cod, @nome;

WHILE (@@FETCH_STATUS = 0)
BEGIN
    PRINT @nome;

    FETCH NEXT FROM curLoop
           INTO @cod, @nome;
END

CLOSE curLoop;
DEALLOCATE curLoop;

end

简单说明一下，如果你使用的是SQL Server(2008及以上版本)，下面的例子有:

While (Select Count(*) From #Temp) > 0

会不会更好

While EXISTS(SELECT * From #Temp)

Count将不得不触及表中的每一行，EXISTS只需要触及第一行。

我是这样做的:

declare @RowNum int, @CustId nchar(5), @Name1 nchar(25)

select @CustId=MAX(USERID) FROM UserIDs     --start with the highest ID
Select @RowNum = Count(*) From UserIDs      --get total number of records
WHILE @RowNum > 0                          --loop until no more records
BEGIN   
    select @Name1 = username1 from UserIDs where USERID= @CustID    --get other info from that row
    print cast(@RowNum as char(12)) + ' ' + @CustId + ' ' + @Name1  --do whatever

    select top 1 @CustId=USERID from UserIDs where USERID < @CustID order by USERID desc--get the next one
    set @RowNum = @RowNum - 1                               --decrease count
END

没有游标，没有临时表，没有额外的列。 USERID列必须是唯一的整数，就像大多数主键一样。

Step1:下面的select语句为每条记录创建一个具有唯一行号的临时表。

select eno,ename,eaddress,mobno int,row_number() over(order by eno desc) as rno into #tmp_sri from emp 

步骤2:声明所需的变量

DECLARE @ROWNUMBER INT
DECLARE @ename varchar(100)

步骤3:从临时表中获取总行数

SELECT @ROWNUMBER = COUNT(*) FROM #tmp_sri
declare @rno int

Step4:根据在temp中创建的唯一行号循环temp表

while @rownumber>0
begin
  set @rno=@rownumber
  select @ename=ename from #tmp_sri where rno=@rno  **// You can take columns data from here as many as you want**
  set @rownumber=@rownumber-1
  print @ename **// instead of printing, you can write insert, update, delete statements**
end

我真的不明白为什么你需要使用可怕的光标。 但是如果你使用的是2005/2008版本的SQL Server，还有另一种选择 使用递归

declare @databases table
(
    DatabaseID    int,
    Name        varchar(15),   
    Server      varchar(15)
)

--; Insert records into @databases...

--; Recurse through @databases
;with DBs as (
    select * from @databases where DatabaseID = 1
    union all
    select A.* from @databases A 
        inner join DBs B on A.DatabaseID = B.DatabaseID + 1
)
select * from DBs

我同意之前的帖子，基于集的操作通常会执行得更好，但如果你确实需要遍历行，下面是我将采取的方法:

Add a new field to your table variable (Data Type Bit, default 0) Insert your data Select the Top 1 Row where fUsed = 0 (Note: fUsed is the name of the field in step 1) Perform whatever processing you need to do Update the record in your table variable by setting fUsed = 1 for the record Select the next unused record from the table and repeat the process DECLARE @databases TABLE ( DatabaseID int, Name varchar(15), Server varchar(15), fUsed BIT DEFAULT 0 ) -- insert a bunch rows into @databases DECLARE @DBID INT SELECT TOP 1 @DBID = DatabaseID from @databases where fUsed = 0 WHILE @@ROWCOUNT <> 0 and @DBID IS NOT NULL BEGIN -- Perform your processing here --Update the record to "used" UPDATE @databases SET fUsed = 1 WHERE DatabaseID = @DBID --Get the next record SELECT TOP 1 @DBID = DatabaseID from @databases where fUsed = 0 END