如何将查询从 MYSQL 更改为 SQL SERVER for LIMIT

Question

如何将此 MYSQL 查询更改为 sql 服务器

SELECT
    id.value AS ICDCode,
    items.itemName AS ProblemListDescription,
    COUNT(*) as UsageCount
FROM problemlist pl
INNER JOIN items
    ON pl.asmtId = items.itemId
LEFT OUTER JOIN itemdetail id
    ON (items.itemId=id.itemId AND id.propId=13 )
WHERE (pl.SNOMED='' OR pl.SNOMED IS NULL) AND pl.deleteflag=0
group by id.value, items.itemName
ORDER BY UsageCount DESC, ICDCode ASC
LIMIT 0,10 ;

我已经在 sql 服务器上尝试过，但它抛出错误

select * from
(
    SELECT
        id.value AS ICDCode,
        items.itemName AS ProblemListDescription,
        COUNT(*)as UsageCount ,
        row_number() over (ORDER BY UsageCount DESC, ICDCode ASC ) as rownum
    FROM problemlist pl
    INNER JOIN items
        ON pl.asmtId=items.itemId
    LEFT OUTER JOIN itemdetail id
        ON (items.itemId=id.itemId AND id.propId=13 )
    WHERE (pl.SNOMED='' OR pl.SNOMED IS NULL) AND pl.deleteflag=0 
    group by id.value, items.itemName
) sno
WHERE rownum BETWEEN 0 AND 10 ;

错误信息是

列 usagecount 无效
列 icdcode 无效

有什么错误还是我必须以其他方式来做？指导我

Answer 1

我可能会在这里使用 TOP:

SELECT TOP 10
    id.value AS ICDCode,
    items.itemName AS ProblemListDescription,
    COUNT(*) as UsageCount
FROM problemlist pl
INNER JOIN items
    ON pl.asmtId = items.itemId
LEFT OUTER JOIN itemdetail id
    ON (items.itemId=id.itemId AND id.propId=13 )
WHERE (pl.SNOMED='' OR pl.SNOMED IS NULL) AND pl.deleteflag=0
GROUP BY
    id.value,
    items.itemName
ORDER BY
    UsageCount DESC, ICDCode

顺便说一下，您查询中的错误是您在 ROW_NUMBER 函数中引用了一个别名，但该别名在查询中的那个点尚不可用。您可以改用以下内容：

ROW_NUMBER() OVER (ORDER BY COUNT(*) DESC, ICDCode) AS rownum

如何将查询从 MYSQL 更改为 SQL SERVER for LIMIT

how to change query from MYSQL to SQL SERVER for LIMIT

mysql

sql-server

limit

row-number