Question

我之前没有在这里发帖，所以请原谅我，如果这不正确或需要改变。

我目前正试图在某一行计数后将一个表拆分为两个单独的表。

所以例如我有2列数据，有2000行，我想把它分成两个表，其中第一个表有相同的2列，前1000个结果，第二个表有相同的两个colums但最后1000个结果。希望这是有道理的。

我有什么方法可以做到这一点吗？

由于

Answer 1

SELECT top 1000 column1, column2 order by column1 into new_table  from  tablex

SELECT * FROM (SELECT column1, column2 row_number() over (order by column1) as rownum 
from tablex) as a 
into new_table  from  tablex WHERE a.rownum between 1000 and 2001

这应该将第一个记录限制为1000个记录，然后将第二个记录限制为1001 - 2001

Answer 2

使用ROWNUMER（）与FIDDLE http://sqlfiddle.com/#!3/6230e/3

-- First 1000
select * from 
(SELECT ROW_NUMBER() OVER(ORDER BY Col1 asc) AS Row, 
    Col1, Col2 
FROM ur_table)d
where d.Row between 1 and 1000

-- Last 1000
select * from 
(SELECT ROW_NUMBER() OVER(ORDER BY Col1 asc) AS Row, 
    Col1, Col2 
FROM ur_table)d
where d.Row between 1000 and 2000

Answer 3

我可能会使用这种方法。如果您需要解释任何操作，请发表评论。

CREATE TABLE #TableA (Col1 INT)
CREATE TABLE #TableB (Col1 INT)

INSERT INTO #TableA (Col1)
    SELECT 1 UNION ALL 
    SELECT 2 UNION ALL
    SELECT 3 UNION ALL
    SELECT 4 UNION ALL
    SELECT 5

DELETE #TableA
    OUTPUT DELETED.Col1 INTO #TableB
WHERE Col1 < 3

Answer 4

答案较短。

SELECT Col1, Col2
FROM TABLE1
ORDER BY Col1
OFFSET 0 ROW FETCH NEXT 1000 ROWS ONLY


SELECT Col1, Col2
FROM TABLE1
ORDER BY Col1
OFFSET 1000 ROW FETCH NEXT 1000 ROWS ONLY

将表行分成两个表

4 个答案: