如何在動態數據透視SQL中使用ISNULL？

Question

我有一個如下表，當我使用動態數據透視時，一切正常，直到我想對所有行求和。 我在將NULL更改為0時遇到問題。應在查詢的哪一部分放入ISNULL函數？

表：

klucz      logid_do_zliczenia   duration
556267831171038 1171038 1058
556267831171038 1171038 54
556267831170688 1170688 72
556267831171038 1171038 59
556267831170688 1170688 46
556267831171038 1171038 54
556267831170688 1170688 42
556267831171038 1171038 12
556267831170634 1170634 112
556267831170634 1170634 53
556267831141392 1141392 77
556290551161102 1161102 32
556290551140814 1140814 249
556290551140814 1140814 43
556290551140814 1140814 105
556290551140814 1140814 40
556290551140814 1140814 304
556290551140814 1140814 61
556290551150534 1150534 351
556290551150534 1150534 76
556290551141170 1141170 238

查詢：

DECLARE @columns NVARCHAR(MAX), @sql NVARCHAR(MAX);             

SET @Columns = (SELECT  N', p.' + QUOTENAME(REPLACE(CONVERT(VARCHAR(max), p.logid_do_zliczenia, 111), '/', '-'))
                FROM    #3 AS p
                GROUP BY p.logid_do_zliczenia
                ORDER BY p.logid_do_zliczenia
                FOR XML PATH(''), TYPE
                ).value('.', 'NVARCHAR(MAX)');            



SET @sql = N'SELECT klucz, ' + STUFF(@columns, 1, 2, '') + ',

Suma = ' + STUFF(REPLACE(@columns, ', p.[', ' + p.['), 1, 3, '') + '
FROM
(
  SELECT p.logid_do_zliczenia, p.klucz, p.duration FROM #3 AS p
) AS j
PIVOT
(
  SUM(duration) FOR logid_do_zliczenia IN ('+ STUFF(REPLACE(@columns, ', p.[', ',['), 1, 1, '') + ')
) AS p;';
EXEC sp_executesql @sql;

我該如何更改？

Answer 1

嘗試這個

DECLARE @columns NVARCHAR(MAX), @sql NVARCHAR(MAX);             

SET @Columns = (SELECT  N', p.' + QUOTENAME(REPLACE(CONVERT(VARCHAR(max), p.logid_do_zliczenia, 111), '/', '-'))
                FROM    #3 AS p
                GROUP BY p.logid_do_zliczenia
                ORDER BY p.logid_do_zliczenia
                FOR XML PATH(''), TYPE
                ).value('.', 'NVARCHAR(MAX)');            



SET @sql = N'SELECT klucz, ' + STUFF(@columns, 1, 2, '') + ',

Suma = ' + STUFF(REPLACE(@columns, ', p.[', ',0) + ISNULL(p.['), 1, 3, '') + ',0)
FROM
(
  SELECT p.logid_do_zliczenia, p.klucz, p.duration FROM #3 AS p
) AS j
PIVOT
(
  SUM(duration) FOR logid_do_zliczenia IN ('+ STUFF(REPLACE(@columns, ', p.[', ',['), 1, 1, '') + ')
) AS p;';

EXEC sp_executesql @sql;