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[英]How to use a postgreSQL crosstab query in Jasper Reports?
[英]Solve this query in use crosstab
这是我的数据库表
| name | |leave type| |total lday| |balance leave| |balance|
|Nasrin| |Annual | |3 | | 14 | |11 |
|labiba| |Annual | |3 | | 20 | |17 |
|Zakir | |Casual | |3 | | 10 | |7 |
|jabin | |Earned | |3 | | 14 | |11 |
现在我想在这个查询中进行一些修改
| name | |Annual| |Casual| |Earned| |balance leave| |balance|
|Nasrin| |3 | |0 | |0 | | 14 | |11 |
|labiba| |3 | |0 | |0 | | 20 | |17 |
|Zakir | |0 | |3 | |0 | | 10 | |7 |
|jabin | |0 | |0 | |3 | | 14 | |11 |
您可以尝试使用条件聚合
select
name,
max(case when leave_type='Annual' then "total lday" end) as Annual,
max(case when leave_type='Casual' then "total lday" end) as Casual,
max(case when leave_type='Earned' then "total lday" end) as Earned,
balance leave,balance
from tablename
group by name,balance leave,balance
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