根据分组划分计数

Question

Need help to create split rows based group by count & if count more than 1000, example below

Table 1 (Some sequential data with unique Id)

AID Batchid Status
1   PWB   0
1   PWB   0
1   PWB   0
1   PWB   0
2   PWB   0
2   PWB   0
2   PWB   0


CREATE TABLE #Tmp(
AID VARCHAR(5),
Tnt FLOAT,
BatchId VARCHAR(20),
status INT)
INSERT INTO #Tmp
SELECT  distinct AID, count(*),'PWB',0  FROM table1 WITH(NOLOCK) 
GROUP BY AID
SELECT * FROM #Tmp
DROP TABLE #Tmp

Above Query Output is

AID Tnt BatchId status
0   20    PWB   0
1   1     PWB   0
42  5010  PWB   0
11  2     PWB   0

But I want & first column will be unique to split the rows

AID Tnt BatchId status
0   20    PWB   0
1   1     PWB   0
42  1000  PWB   0
42  1000  PWB   0
42  1000  PWB   0
42  1000  PWB   0
42  1000  PWB   0
42  10    PWB   0
11  2     PWB   0

Answer 1

CROSS APPLY tally table. I use sys.all_objects as a tally. Note Tnt must be int , no reason to declare count(*) as float .

CREATE TABLE #Tmp(
  AID VARCHAR(5),
  Tnt Int,
  BatchId VARCHAR(20),
  status INT);

-- your sample data
INSERT INTO #Tmp
VALUES
 (0  ,20   ,'PWB',0)
,(1  ,1    ,'PWB',0)
,(42 ,5010 ,'PWB',0)
,(11 ,2    ,'PWB',0);

--parameter
DECLARE @limit int = 1000;
SELECT AID, CASE WHEN rn*@limit <= Tnt THEN @limit ELSE Tnt%@limit END as Tnt, BatchId, status
FROM #Tmp t1
CROSS APPLY (
    SELECT TOP(Tnt/@limit + CASE Tnt%@limit WHEN 0 THEN 0 ELSE 1 END)
       rn = ROW_NUMBER() OVER(ORDER BY tnt)
    FROM sys.all_objects
) x;

DROP TABLE #tmp;