oracle查看该用户的所有表名字、表注释、字段名、字段注释、是否为空、字段类型
来源：程序员人生 发布时间：2014-11-09 09:43:19 阅读次数：4015次
--oracle查看该用户的所有表名字、表注释、字段名、字段注释、是不是为空、字段类型
select distinct TABLE_COLUMN.*,
TABLE_NALLABLE.DATA_TYPE,
TABLE_NALLABLE.NULLABLE
from (select distinct utc.table_name table_name,
utc.comments table_comments,
ucc.column_name column_name,
ucc.comments column_comments
from user_tab_comments utc, user_col_comments ucc
where utc.table_name = ucc.table_name
and utc.table_name not like '%_B'
and utc.table_name not like '%_Z'
and utc.table_name not like '%1%') TABLE_COLUMN,
(select distinct table_name, column_name, nullable, DATA_TYPE
from user_tab_cols
where table_name not like '%_B'
and table_name not like '%_Z'
and table_name not like '%1%') TABLE_NALLABLE
where TABLE_COLUMN.column_name = TABLE_NALLABLE.column_name
and TABLE_COLUMN.TABLE_NAME = TABLE_NALLABLE.table_name
--and TABLE_COLUMN.column_comments like '%分类名称%'
and TABLE_COLUMN.table_comments like '%字典%';
--屡次去掉笛卡尔
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