如何使用 ROLLUP 从 SQL 汇总行中消除空白

Question

我在 Sql 服务器 2016 中有以下 SQL。我试图捕获列中的站点总数，然后使用 ROLLUP 捕获行中的总计。 但是，我也得到了空值。 我在这里提供示例数据：

            create table #tempSite
                (
                Report_Date smalldatetime null,
                Code varchar(10) null,
                DepSite varchar(10) null
                )

                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-22', 'ABCDE', 'NC')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-22', 'ABCDE', 'SC')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-22', 'ABCDE', 'FL')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-22', 'ABCDE', 'SC')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-22', 'ABCDE', 'FL')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-22', 'ABCDE', 'NC')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-22', 'ABCDE', 'SC')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-22', 'ABCDE', 'NC')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-22', 'UVXYZ', 'NC')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-22', 'UVXYZ', 'SC')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-22', 'UVXYZ', 'NC')

                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-23', 'ABCDE', 'NC')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-23', 'ABCDE', 'SC')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-23', 'ABCDE', 'FL')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-23', 'ABCDE', 'SC')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-23', 'PQRST', 'FL')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-23', 'ABCDE', 'NC')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-23', 'ABCDE', 'SC')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-23', 'ABCDE', 'NC')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-23', 'UVXYZ', 'NC')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-23', 'PQRST', 'SC')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-23', 'UVXYZ', 'NC')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-23', 'UVXYZ', 'CA')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-23', 'PQRST', 'CA')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-23', 'UVXYZ', 'MD')

                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-24', 'ABCDE', 'NC')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-24', 'ABCDE', 'SC')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-24', 'ABCDE', 'FL')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-24', 'ABCDE', 'SC')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-24', 'PQRST', 'FL')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-24', 'ABCDE', 'NC')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-24', 'ABCDE', 'SC')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-24', 'ABCDE', 'NC')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-24', 'UVXYZ', 'NC')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-24', 'PQRST', 'SC')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-24', 'UVXYZ', 'NC')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-24', 'UVXYZ', 'CA')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-24', 'PQRST', 'CA')
                INSERT INTO #tempSite (Report_Date, Code, DepSite) values ('2020-05-24', 'UVXYZ', 'MD')

                SELECT Report_Date, Code, DepSite, count(DepSite) TOT_SITE
                FROM #tempSite  
                WHERE Code ='ABCDE'in 
                and Report_Date in ('2020-05-22', '2020-05-24')
                group by ROLLUP(Report_Date, Code, DepSite)

如何消除 NULLS？ 有没有办法获得如下结果：

Report_Date         Code    DepSite TOT_SITE
2020-05-22 00:00:00 ABCDE   FL      2
2020-05-22 00:00:00 ABCDE   NC      3
2020-05-22 00:00:00 ABCDE   SC      3
2020-05-22 00:00:00 NULL    NULL    8
2020-05-24 00:00:00 ABCDE   FL      1
2020-05-24 00:00:00 ABCDE   NC      3
2020-05-24 00:00:00 ABCDE   SC      3
2020-05-24 00:00:00 NULL    NULL    7
NULL                NULL    NULL    15

Answer 1

您可以使用GROUPING function 通过HAVING子句过滤GROUP BY ：

SELECT Report_Date, Code, DepSite, count(DepSite) TOT_SITE
FROM #tempSite  
WHERE Code ='ABCDE'
and Report_Date in ('2020-05-22', '2020-05-24')
group by ROLLUP(Report_Date, Code, DepSite)
having grouping(DepSite) = 0
or grouping (Code) = 1

当列作为ROLLUP的一部分在该行中总计时， GROUPING为 1。 所以在这里你检查最后一列（ DepSite ）是否没有被ROLLUP总计（因此是标准聚合行 output 由GROUP BY ）或者Code正在总计，因此DepSite也必须是（因为你是做ROLLUP而不是CUBE和Code在DepSite之前）

Answer 2

您的结果可以使用以下查询来实现：

SELECT Report_Date, Code, DepSite, count(DepSite) TOT_SITE
FROM #tempSite  
WHERE Code ='ABCDE' 
and Report_Date in ('2020-05-22', '2020-05-24')
group by ROLLUP(Report_Date, Code, DepSite)
having (Code is not null and DepSite is not null)
  or (Code is null and DepSite is null)