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Developer-C 11.1
3.0
4.0
10.2
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10.6
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10.8
10.9
10.11
11.4
5.5
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18
11g Release 2
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10
11
12
13
14
15
16
17
2012
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2017 (Linux)
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3.8
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3.27
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2.11
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WITH TableA AS ( SELECT 'no1' AS no1, 'no2' AS no2, 'n031' AS no3 FROM dual UNION ALL SELECT 'no1', 'no2', 'n032' FROM dual ), TableB AS ( SELECT 'no1' AS no1, 'no2' AS no2, 'n031' AS no3, 'file311' AS "file" FROM dual UNION ALL SELECT 'no1', 'no2', 'n031', 'file312' FROM dual UNION ALL SELECT 'no1', 'no2', 'n031', 'file313' FROM dual UNION ALL SELECT 'no1', 'no2', 'n032', 'file321' FROM dual UNION ALL SELECT 'no1', 'no2', 'n032', 'file322' FROM dual ) SELECT a.no1, a.no2, a.no3, COUNT(b.no1) AS PHOTO_COUNT FROM TableA a LEFT JOIN TableB b ON a.no1 = b.no1 AND a.no2 = b.no2 AND a.no3 = b.no3 GROUP BY a.no1, a.no2, a.no3;
NO1
NO2
NO3
PHOTO_COUNT
no1
no2
n031
3
no1
no2
n032
2