使用内部连接将两个或多个条件定义到存储过程中?

Define two or more conditions into a stored procedure with inner join?

首先,我需要通过变量 @company_id 过滤表 TbTaxCompaniestbCompany 中的数据...并且有效!

CREATE PROCEDURE taxcompany_importTaxes
    @company_id int
AS
    SELECT 
        tc.idtaxcompany, tc.company_id, c.nameCompany, 
        ct.tax1, ct.tax2, ct.tax3, ct.dateUpgrade
    FROM 
        tbTaxCompanies tc
    INNER JOIN 
        tbCompany c ON tc.company_id = c.idcompany
    WHERE 
        tc.company_id = @company_id
    ORDER BY 
        tc.idtaxcompany ASC

其次,我需要再次过滤之前使用 @company_id 选择的公司的日志集,但现在只获取最新更新的税款(只有一行)......这行不通!

CREATE PROCEDURE taxcompany_importTaxes
    @company_id int
AS
    SELECT 
        tc.idtaxcompany, tc.company_id, c.nameCompany, 
        ct.tax1, ct.tax2, ct.tax3, ct.dateUpdate
    FROM 
        tbTaxCompanies tc
    INNER JOIN 
        tbCompany c ON tc.company_id = c.idcompany
    WHERE 
        tc.company_id = @company_id 
        AND (tc.dateUpdate = (SELECT MAX (dateUpdate) FROM tbTaxCompanies))
    ORDER BY 
        tc.idtaxcompany ASC

非常感谢任何帮助。

如果您想要第一个结果集中的最新行,只需使用 order bytop:

SELECT TOP (1) WITH TIES
    tc.idtaxcompany, tc.company_id, c.nameCompany, 
    tc.tax1, tc.tax2, tc.tax3, tc.dateUpgrade
FROM tbTaxCompanies tc
INNER JOIN tbCompany c on tc.company_id = c.idcompany
WHERE tc.company_id = @company_id
ORDER BY tc.dateUpdate DESC

如果您想要每组 的最新行 ,例如每个 tc.idtaxcompany,那么您只需将 ORDER BY 子句更改为:

ORDER BY RANK() OVER(PARTITION BY tc.idtaxcompany ORDER BY tc.dateUpdate DESC)