1 select col.TABLE_NAME,col.COLUMN_NAME,col.DATA_TYPE,col.DATA_LENGTH,col.NULLABLE,com.comments,com.owner
2 from dba_tab_columns col join dba_col_comments com
3 on col.TABLE_NAME = com.table_name and col.COLUMN_NAME = com.column_name
4 and com.table_name ='CW_CB_ACT'
5 order by col.COLUMN_ID
执行结果：
其他sql：
获取表信息：
select t.* from user_tab_comments t where comments is not null
and t.table_name = 'CW_CB_ACT'
and t.table_name = 'CW_CB_ACT'
给表填加注释：SQL>comment on table 表名 is '表注释";
给列加注释：SQL>comment on column 表.列 is '列注释';