/*****************************根據時間查詢每天的數據***************************************/
@tm_start:開始時間
@tm_end：結束時間
sql語句：
Select CONVERT(DATE, c.dt_rec) DT,COUNT(*) CT
From dbo.YY_client c
where c.dt_rec between CONVERT(varchar(50),@tm_start,20) and CONVERT(varchar(50),@tm_end,20)
Group by CONVERT(DATE, c.dt_rec) Order by CONVERT(DATE, c.dt_rec) desc
結果：
/*****************************按照時間查詢每月的數據***************************************/
sql語句：
SELECT (CAST(YEAR(c.dt_rec) AS VARCHAR(4)) + '-' + CAST(MONTH(c.dt_rec) AS VARCHAR(2))) DT, COUNT(*) CT
From dbo.YY_client c
WHERE c.dt_rec between @tm_start and @tm_end
GROUP BY (CAST(YEAR(c.dt_rec) AS VARCHAR(4)) + '-' + CAST(MONTH(c.dt_rec) AS VARCHAR(2)))
ORDER BY (CAST(YEAR(c.dt_rec) AS VARCHAR(4)) + '-' + CAST(MONTH(c.dt_rec) AS VARCHAR(2))) DESC
結果：
