[英]SQL query: how to convert varchar to signed integer for SQL Server 2000?
[英]How to convert this query to SQL Server 2000 syntax
我正在运行此查询到SQL Server 2008+但它不适用于SQL Server 2000.我需要执行此操作。
WITH CTE AS (
SELECT
custnum,
custname,
RN = ROW_NUMBER() OVER( PARTITION BY custnum, custname ORDER BY custnum )
FROM
cust
)
SELECT
*
FROM
CTE
WHERE RN > 1
非常感谢你的帮助!
看看这是否有效
select custnum,custname from
(
select (select count(*) from cust as t1 where t1.custnum<=t2.custnum) as sno,
custnum,custname from cust as t2
) as t
where sno>1
在SQL Server 2005之前,通过对带有IDENTITY
列的#temp
表中的有序插入来解决此问题域,以生成序列号。 这将解决RANK()
和ROW_NUMBER()
要求。
例如:
-- Create empty temp table
SELECT custnum, custname, IDENTITY(INT, 1, 1) as RN
INTO #cust
FROM cust
WHERE 0 = 1
-- Populate with ORDER BY, to generate ascending RN
INSERT INTO #cust
(custnum, custname)
SELECT
custnum, custname
FROM
cust
ORDER BY
custnum, custname
此时,您可以查询每个custnum / custname分组的MIN()
,并在使用CTE时使用它。
但是...... ROW_NUMBER()
真的是你想要的吗? 好像你想要RANK()
,而不是ROW_NUMBER()
。
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