【发布时间】:2020-12-22 17:08:10
【问题描述】:
使用 SQL Server 2012 - 我正在尝试从数据库中完成不同实体的计数,按其国家和地区以及它们所在的公司类型分组。后一块是问题所在 - 因为有这么多“类型”,我试图将它们分为 3 类:公共、私人以及使用案例语句将所有其他内容归为“其他”。
查询产生了我想要的输出,但是我无法让查询将计数分组到我选择的类别中。我最初在主选择查询中有 CASE 语句,但在其他地方找到类似的问题后,我将其移至子查询,但我遇到了同样的问题。查询下面的示例输出:
SELECT COUNT(DISTINCT ent.factset_entity_id) AS Count,
d.[Entity Type],
YEAR(r.repr_timeslot_date) AS [Year],
cty.country_desc AS Country,
reg.region_desc AS Region
FROM
(SELECT
entity_type_code,
CASE
WHEN entity_type_code = 'PUB'
THEN 'Public'
WHEN entity_type_code IN ('PVT', 'HOL', 'JVT', 'SUB')
THEN 'Private'
ELSE 'Other'
END AS [Entity Type]
FROM
ref_v2.entity_type_map) AS d
JOIN
sym_v1.sym_entity AS ent ON ent.entity_type = d.entity_type_code
JOIN
sdfdemo.sym_v1.sym_sec_entity AS se ON ent.factset_entity_id = se.factset_entity_id
JOIN
repr_v1.repr_factset_id_map AS reprisk ON se.fsym_id = reprisk.factset_id
JOIN
repr_v1.repr_rri AS r ON r.repr_company_id = reprisk.provider_id
JOIN
ref_v2.country_map AS cty ON cty.iso_country = ent.iso_country
JOIN
ref_v2.region_map AS reg ON reg.region_code = cty.region_code
JOIN
ref_v2.entity_type_map AS ety ON ety.entity_type_code = ent.entity_type
WHERE
reprisk.id_end_date IS NULL
AND reprisk.factset_id IS NOT NULL
AND ent.iso_country IN ('SG')
AND YEAR(r.repr_timeslot_date) = '2020'
AND r.repr_rating IS NOT NULL
GROUP BY
d.[Entity Type], cty.country_desc, reg.region_desc,
ent.entity_type, YEAR(r.repr_timeslot_date);
当前输出:
| Count | Entity Type | Year | Country | Region |
|---|---|---|---|---|
| 1 | Other | 2020 | Singapore | Asia |
| 2 | Other | 2020 | Singapore | Asia |
| 12 | Other | 2020 | Singapore | Asia |
| 2 | Other | 2020 | Singapore | Asia |
| 3 | Private | 2020 | Singapore | Asia |
| 455 | Public | 2020 | Singapore | Asia |
| 5 | Private | 2020 | Singapore | Asia |
所需输出:
| Count | Entity Type | Year | Country | Region |
|---|---|---|---|---|
| 8 | Private | 2020 | Singapore | Asia |
| 455 | Public | 2020 | Singapore | Asia |
| 17 | Other | 2020 | Singapore | Asia |
非常感谢任何建议!
【问题讨论】:
-
仅供参考:它是一个案例表达式而不是语句。
标签: sql-server group-by count sql-server-2012 case