Mysql 将两个结果查询合并为一个结果查询
我有这样的查询(在这两个查询中,我都有复杂的查询,Mysql 将两个结果查询合并为一个结果查询,mysql,Mysql,我有这样的查询(在这两个查询中,我都有复杂的查询,join和union) 还有一个问题 SELECT id, SUM(CASE WHEN tgl_tindak_lanjut="2017-09-14" THEN 1 ELSE 0 end ) as count_all_09, SUM( CASE WHEN tgl_tindak_lanjut="2017-09-13" THEN 1 ELSE 0 END) as count_09_13 FR
join
和union
)
还有一个问题
SELECT
id,
SUM(CASE WHEN tgl_tindak_lanjut="2017-09-14" THEN 1 ELSE 0 end ) as count_all_09,
SUM( CASE WHEN tgl_tindak_lanjut="2017-09-13" THEN 1 ELSE 0 END) as count_09_13
FROM (
SELECT
a.id_kondisi as id,
d.tgl_tindak_lanjut as tgl_tindak_lanjut
FROM
laporan_kondisi a
LEFT OUTER JOIN
laporan_sebab b
ON
a.id = b.id_laporan_kondisi
LEFT OUTER JOIN
laporan_rekomendasi c
ON
b.id = c.id_laporan_sebab
LEFT OUTER JOIN
laporan_tindak_lanjut d
ON
c.id = d.id_laporan_rekomendasi
UNION
SELECT
a2.id_sub_kondisi,
d2.tgl_tindak_lanjut as tgl_tindak_lanjut
FROM
laporan_kondisi a2
LEFT OUTER JOIN
laporan_sebab b2
ON
a2.id = b2.id_laporan_kondisi
LEFT OUTER JOIN
laporan_rekomendasi c2
ON
b2.id = c2.id_laporan_sebab
LEFT OUTER join
laporan_tindak_lanjut d2
ON
c2.id = d2.id_laporan_rekomendasi
) merged_table GROUP BY id
结果
+------+--------------+-------------+
| id | count_all_09 | count_09_13 |
+------+--------------+-------------+
| 01 | 0 | 1 |
| 0101 | 0 | 1 |
| 0102 | 0 | 0 |
| 02 | 0 | 0 |
| 0201 | 0 | 0 |
| 0202 | 0 | 0 |
| 0203 | 0 | 0 |
| 03 | 0 | 0 |
| 0301 | 0 | 0 |
| 0302 | 0 | 0 |
| 0303 | 0 | 0 |
+------+--------------+-------------+
这能像这样组合桌子吗
+------+-------+----------+------+----------+--------------+-------------+
| id | ct_id | sum_kl | tot | sum_kl2 | count_all_09 | count_09_13 |
+------+-------+----------+------+----------+--------------+-------------+
| 01 | 3 | 20000000 | 3 | 20000000 | 0 | 1 |
| 0101 | 2 | 9000000 | 2 | 9000000 | 0 | 1 |
| 0102 | 2 | 11000000 | 2 | 11000000 | 0 | 0 |
| 02 | 1 | 0 | 0 | 0 | 0 | 0 |
| 0201 | 1 | 0 | 0 | 0 | 0 | 0 |
| 0202 | 1 | 0 | 0 | 0 | 0 | 0 |
| 0203 | 1 | 0 | 0 | 0 | 0 | 0 |
| 03 | 2 | 4000000 | 2 | 4000000 | 0 | 0 |
| 0301 | 1 | 0 | 1 | 0 | 0 | 0 |
| 0302 | 2 | 4000000 | 2 | 4000000 | 0 | 0 |
| 0303 | 1 | 0 | 1 | 0 | 0 | 0 |
+------+-------+----------+------+----------+--------------+-------------+
我尝试了
JOIN
和许多其他方法,但只给出了一个结果。这样的结果有可能吗?或者此查询只是不给我们结果?很难说添加所有第二个查询逻辑是否会影响结果,因为您没有提供有关此查询的功能或实际数据的任何信息。您可以做的,应该总是有效的(如果您计划重用此查询,则不建议这样做;如果性能是一个问题,则也不建议这样做),就是加入整个查询
它将如下所示:
SELECT t.*,s.count_all_09,s.count_09_13
FROM (FIRST QUERY HERE) t
JOIN (SECOND QUERY HERE) s
ON(t.id = s.id)
我不知道为什么,它给了我一个单一的结果。你说的单一结果是什么意思?它显示了第0-0行(总共1行,查询耗时0.0280秒)。只给出带有
01
id的数据。对于你提供的信息,此查询应该可以完美地工作。请发布您正在使用的整个查询。另外,当您使用:选择COUNT(*)FROM(FIRST QUERY)
,第二个相同,您得到多少?
+------+-------+----------+------+----------+--------------+-------------+
| id | ct_id | sum_kl | tot | sum_kl2 | count_all_09 | count_09_13 |
+------+-------+----------+------+----------+--------------+-------------+
| 01 | 3 | 20000000 | 3 | 20000000 | 0 | 1 |
| 0101 | 2 | 9000000 | 2 | 9000000 | 0 | 1 |
| 0102 | 2 | 11000000 | 2 | 11000000 | 0 | 0 |
| 02 | 1 | 0 | 0 | 0 | 0 | 0 |
| 0201 | 1 | 0 | 0 | 0 | 0 | 0 |
| 0202 | 1 | 0 | 0 | 0 | 0 | 0 |
| 0203 | 1 | 0 | 0 | 0 | 0 | 0 |
| 03 | 2 | 4000000 | 2 | 4000000 | 0 | 0 |
| 0301 | 1 | 0 | 1 | 0 | 0 | 0 |
| 0302 | 2 | 4000000 | 2 | 4000000 | 0 | 0 |
| 0303 | 1 | 0 | 1 | 0 | 0 | 0 |
+------+-------+----------+------+----------+--------------+-------------+
SELECT t.*,s.count_all_09,s.count_09_13
FROM (FIRST QUERY HERE) t
JOIN (SECOND QUERY HERE) s
ON(t.id = s.id)