oracle数据字典操作(续)

1、查看表空间中的表

select table_name,instances,tablespace_name from user_tables where tablespace_name='DIET'；

2、查看表的字段名称、属性、大小

DESC tableName

3、查看序列Sequence

 

select * from user_sequences;

select   *   from   dba_sequences   t   where   t.sequence_name='sequence名称大写';