Question

我正在使用SQL Server 2012，并且有一个声明可以返回当前周的这些记录：

Employee , Sun , Mon , Tues, Wed, Thurs, Fri, Sat 
--------------------------------------------------
 Smith      5     8      5    4     8     4    0
 Burt       7     1      8    5     4     4    7

这是我的SQL，本周从Sun开始。如何更改，以便显示前一周？

SELECT
    ReproofMidLineBy AS Employee,
    COUNT( CASE WHEN DATENAME( dw, ReproofMidLineDate )= 'Sunday' THEN 1 END ) AS Sun,
    COUNT( CASE WHEN DATENAME( dw, ReproofMidLineDate )= 'Monday' THEN 1 END ) AS Mon,
    COUNT( CASE WHEN DATENAME( dw, ReproofMidLineDate )= 'Tuesday' THEN 1 END ) AS Tues,
    COUNT( CASE WHEN DATENAME( dw, ReproofMidLineDate )= 'Wednesday' THEN 1 END ) AS Wed,
    COUNT( CASE WHEN DATENAME( dw, ReproofMidLineDate )= 'Thursday' THEN 1 END ) AS Thurs,
    COUNT( CASE WHEN DATENAME( dw, ReproofMidLineDate )= 'Friday' THEN 1 END ) AS Fri,
    COUNT( CASE WHEN DATENAME( dw, ReproofMidLineDate )= 'Saturday' THEN 1 END ) AS Sat,
    COUNT(*) AS TOTAL
FROM
    dbo.tblJobLog
WHERE
    (ReproofMidLineDate BETWEEN DATEADD(DAY, DATEDIFF(DAY, 0, GETDATE()) / 7 * 7, 0) 
                        AND DATEADD(DAY, DATEDIFF(DAY, 6, GETDATE()- 1) / 7 * 7 + 7, 6)
     )
GROUP BY
    ReproofMidLineBy

Answer 1

用以下内容替换你的where子句：

    WHERE
(
    ReproofMidLineDate BETWEEN DATEADD(WEEK, -1, DATEADD(
        DAY,
        DATEDIFF(
            DAY,
            0,
            GETDATE()
        )/ 7 * 7,
        0))


    AND DATEADD(WEEK, -1, DATEADD(
        DAY,
        DATEDIFF(
            DAY,
            6,
            GETDATE()- 1
        )/ 7 * 7 + 7,
        6
    ))
)

Answer 2

一种非常简单的方法是为比较添加一周：

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8" />
  <title></title>
  <script type="text/javascript" src="http://code.jquery.com/jquery-latest.min.js"></script>
</head>
<body>

    <script>

        var data = [
           ['idea', 'a very good one'],
           ['beer', 'not when driving'],
           ['guitar', 'yes please']
        ];


        function download_csv() {
            var csv = 'Name,Title\n';
            data.forEach(function(row) {
                    csv += row.join(',');
                    csv += "\n";
            });

            console.log(csv);
            var hiddenElement = document.createElement('a');
            hiddenElement.href = 'data:text/csv;charset=utf-8,' + encodeURI(csv);
            hiddenElement.target = '_blank';
            hiddenElement.download = 'test.csv';
            document.getElementById('container').appendChild(hiddenElement);
            hiddenElement.click();
        }

    </script>

    <button onclick="download_csv()">Download CSV</button>
    <div id="container" style="display:none;"></div>
</body>
</html>

您还可以从WHERE DATEADD(week, 1, ReproofMidLineDate) BETWEEN . . .的范围中减去一周（或7天）。

SQL Server：来自上周的datediff

2 个答案: