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【DM版本】:8
【操作系统】：centos7
【CPU】:
【问题描述】*：
这是pg统计出来的结果，达梦该如何写该语句。 SELECT * from geo_pointer.data_catalog connect by fldm=parent_code;
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输入法
select * from (select * from (select fldm,flmc,level ,count(*) from geo_pointer.data_catalog
start with parent_code='0' connect by fldm=parent_code )group by fldm,flmc,level ) where level=2;
select * from (select * from (select fldm,flmc,level ,count(*) from geo_pointer.data_catalog
start with parent_code='0' connect by fldm=parent_code )group by fldm,flmc,level ) where level=2;