CURSOR не зацикливание больше, чем когда-то

Question

Я новичок в процедурах SQL Server хранится ... Я написал код, который не зацикливание правильно я верю ...

Примечание: Я не могу использовать отладчик так отладки я использовал команды PRINT (старый стиль школы)

Я использую SQL Server 2005

код входит в цикл и печатает строки только один раз - где-то их всего 29 Итоговые записи, которые зацикливаются и работал над

PRINT 'check if rows are their or not for Adjusting X flags records Results 5 ' 

SELECT 
    td_clientcd , td_scripcd, cm_name, td_scripnm, 
    sum(td_bqty) td_qty, 
    sum(td_sqty) td_sqty, 
    sum(td_bqty-td_sqty) net 
FROM 
    ##VX, Client_master with (nolock) 
WHERE 
    td_clientcd = cm_cd 
    AND td_clientcd = @client_cd 
GROUP BY 
    td_clientcd, cm_name, td_scripcd, td_scripnm 
HAVING 
    sum(td_bqty - td_sqty) <> 0 
ORDER BY 
    td_clientcd , td_scripcd 

DECLARE dataX_Cursor CURSOR FOR 
    SELECT td_clientcd , td_scripcd,cm_name,td_scripnm, sum(td_bqty) td_bqty ,sum(td_sqty) td_sqty, sum(td_bqty-td_sqty) net FROM ##VX,Client_master with (nolock) where td_clientcd = cm_cd and td_clientcd = @client_cd group by td_clientcd,cm_name,td_scripcd,td_scripnm having sum(td_bqty - td_sqty) <> 0 ORDER BY td_clientcd , td_scripcd 

    OPEN dataX_Cursor 

    PRINT 'i am at 144' 
    DECLARE @tempSumQty INT -- has the qty of the Lower Side 
    DECLARE @tempHigherSideFlag CHAR -- show which is the Higher side Sell (S) or Buy (B) 

    FETCH NEXT FROM dataX_Cursor INTO @td_clientcode, @td_scripcode, @cm_name, @td_scripname, @td_buyqty, @td_sellqty, @net 

    WHILE @@FETCH_STATUS = 0 
    BEGIN 
     --Example 
      -- select * from ##VX where td_clientcd = '26555 ' and td_scripcd = '532804' and td_bsflag = 'B' and td_flag = 'N' order by td_dt desc,td_stlmnt desc 
     -- update ##VX set td_flag = 'X' where td_srno = 308 
     PRINT 'I am at 155' 
     -- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 

     if @td_buyqty > @td_sellqty 
       BEGIN 
      SET @tempSumQty = @td_sellqty -- Sets the sum of Lower side Qty 
      SET @tempHigherSideFlag = 'B' 
     END 
     ELSE 
       BEGIN 
      SET @tempSumQty = @td_buyqty -- Sets the sum of Lower side Qty 
      SET @tempHigherSideFlag = 'S' 
     END -- This will get the higher Side Qty 

     PRINT @tempSumQty 
     PRINT @tempHigherSideFlag 

     IF @td_buyqty = 0 OR @td_sellqty = 0 -- Just update the flag to X 
         BEGIN 
          -- select a single/multiple records and loop through it and see if 
          PRINT 'in OR Condition of X flags' 
          DECLARE record_Cursor CURSOR FOR 
          select * from ##VX where td_clientcd = @td_clientcode and td_scripcd = @td_scripcode and td_bsflag = @tempHigherSideFlag and td_flag = 'N' order by td_dt desc,td_stlmnt desc -- gets the records will needs to be marked X, which are from higher side. 

          OPEN record_Cursor 

          Fetch Next From record_Cursor Into @td_companycode ,@td_stlmnt,@td_clientcd , @td_scripcd, @td_dt, @td_srno, @td_bsflag,@td_bqty, @td_sqty, @td_rate, @td_marketrate,@td_flag,@td_scripnm,@td_desc 
          -- looping 
          While @@Fetch_Status = 0 
              BEGIN 

               -- update the old record with a flag of X 
               update ##VX set td_flag = 'X' where td_srno = @td_srno 


               -- fetch next 
               Fetch Next From record_Cursor Into @td_companycode ,@td_stlmnt,@td_clientcd , @td_scripcd, @td_dt, @td_srno, @td_bsflag,@td_bqty, @td_sqty, @td_rate, @td_marketrate,@td_flag,@td_scripnm,@td_desc 
              END 

          --Close record_Cursor 
          --Deallocate record_Cursor 

      END -- End of Fetch 

      -- if need to adjust the records with an insert and a update 

      IF @td_buyqty <> 0 AND @td_sellqty <> 0 -- Adjust the record with an insert and update the flag to X 
        BEGIN 
         -- select a single/multiple records and loop through it and see if 
         PRINT 'in AND Condition of X flags' 
         DECLARE record_Cursor CURSOR FOR 
         select * from ##VX where td_clientcd = @td_clientcode and td_scripcd = @td_scripcode and td_bsflag = @tempHigherSideFlag and td_flag = 'N' order by td_dt desc,td_stlmnt desc -- gets the records will needs to be marked X, which are from higher side. 

         OPEN record_Cursor 

         Fetch Next From record_Cursor Into @td_companycode ,@td_stlmnt,@td_clientcd , @td_scripcd, @td_dt, @td_srno, @td_bsflag,@td_bqty, @td_sqty, @td_rate, @td_marketrate,@td_flag,@td_scripnm,@td_desc 
         -- looping 
         While @@Fetch_Status = 0 
         BEGIN 
               DECLARE @CurrentRowQty INT 
             -- PRINT 'i am at 198 ' + CONVERT(VARCHAR(2), @tempHigherSideFlag) 
                  IF @tempHigherSideFlag = 'S' 
                    BEGIN 
                     SET @CurrentRowQty = @td_sqty 
                    END 
                  ELSE IF @tempHigherSideFlag = 'B' 
                     BEGIN 
                      SET @CurrentRowQty = @td_bqty 
                     END 

               IF @tempSumQty > @CurrentRowQty 
                   BEGIN 
                    SET @tempSumQty = @tempSumQty - @CurrentRowQty 
                   END 
               ELSE 
                 BEGIN 
                 -- PRINT 'i am at 213 ' + CONVERT(VARCHAR(2), @tempHigherSideFlag) 
                  IF @tempHigherSideFlag = 'S' 
                    BEGIN 
                     SET @td_sqty = @td_sqty - @tempSumQty 
                     insert into ##VX select td_companycode ,td_stlmnt,td_clientcd , td_scripcd, td_dt, td_bsflag, td_bqty, @tempSumQty, td_rate, td_marketrate,td_flag,td_scripnm,'' from ##VX where td_srno = @td_srno 
                     update ##VX set td_flag = 'X' ,td_sqty = @td_sqty where td_srno = @td_srno 

                    END 
                  ELSE -- IF @tempHigherSideFlag = 'B' 
                    BEGIN 
                     SET @td_bqty = @td_bqty - @tempSumQty 
                     insert into ##VX select td_companycode ,td_stlmnt,td_clientcd , td_scripcd, td_dt, td_bsflag, @tempSumQty, td_sqty, td_rate, td_marketrate,td_flag,td_scripnm,'' from ##VX where td_srno = @td_srno 
                     update ##VX set td_flag = 'X' ,td_bqty = @td_bqty where td_srno = @td_srno 
                    END 
                 END -- end of else 
           -- fetch next 
           Fetch Next From record_Cursor Into @td_companycode ,@td_stlmnt,@td_clientcd , @td_scripcd, @td_dt, @td_srno, @td_bsflag,@td_bqty, @td_sqty, @td_rate, @td_marketrate,@td_flag,@td_scripnm,@td_desc 

          END 
        --Close record_Cursor 
        --Deallocate record_Cursor 

         END 

       -- FETCH NEXT FROM dataX_Cursor INTO @td_clientcode, @td_scripcode, @cm_name, @td_scripname, @td_buyqty, @td_sellqty, @net 

       END -- End of Fetch 

и, наконец, я

Deallocate record_Cursor 
Close dataX_Cursor 
Deallocate dataX_Cursor 

Answer 1

Я предполагаю, что ваши select возвращает более 1 строку, не так ли? Попробуйте сохранить @@ FETCH_STATUS 3 различных Варс как этот

Declare @dataXStatus Int 
Declare @record1_status Int 
... 
FETCH NEXT FROM dataX_Cursor INTO ... 
SET @dataX_status = @@Fetch_status 
WHILE @dataX_status = 0 
... 
    OPEN record_Cursor 
    Fetch Next From record_Cursor INTO .... 
    SET @record1_status = @@Fetch_status 
    While @record1_status = 0 
    ... 
    Fetch Next From record_Cursor INTO ... 
    SET @record1_status = @@Fetch_status 
    end 
    ... 
    FETCH NEXT FROM dataX_Cursor INTO 
    SET @dataX_status = @@Fetch_status 
end 

и так далее ... это станет ясно довольно скоро ваш, где ошибка в вашей процедуре, если у вас есть различные переменные FETCH_STATUS для каждого цикла курсора.