Shulou(Shulou.com)06/01 Report--

Create table test (name char (10), km char (10), cj Number)

Insert into test values ('Zhang San', 'Chinese', 80)

Insert into test values (Zhang San, Mathematics, 86)

Insert into test values (Zhang San, English, 75)

Insert into test values ('Li Si', 'Chinese', 78)

Insert into test values ('Li Si', 'Mathematics', 85)

Insert into test values ('Li Si', 'English', 78)

Commit

How to achieve this:

Name Chinese Mathematical English

Li Si 78 85 83

Zhang San 80 86 75

Select

Name

Sum (decode (km,' language', cj,0) language

Sum (decode (km,' Mathematics', cj,0) Mathematics

Sum (decode (km,' English', cj,0) English

From test group by nameTop

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