1、用户
查看当前用户的缺省表空间
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SQL> select username,default_tablespace from user_users;
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查看当前用户的角色
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SQL> select * from user_role_privs;
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查看当前用户的系统权限和表级权限
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SQL> select * from user_sys_privs;
SQL> select * from user_tab_privs;
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显示当前会话所具有的权限
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SQL> select * from session_privs;
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显示指定用户所具有的系统权限
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SQL> select * from dba_sys_privs where grantee= 'EZXX' ;
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2、表
查看用户下所有的表
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SQL> select * from user_tables;
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查看名称包含log字符的表
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SQL> select object_name,object_id from user_objects where instr(object_name, 'LOG' )>0;
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查看某表的创建时间
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SQL> select object_name,created from user_objects where object_name= upper ( '&table_name' );
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查看某表的大小
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SQL> select sum (bytes)/(1024*1024) as "size(M)" from user_segments where segment_name= upper ( '&table_name' );
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查看放在ORACLE的内存区里的表
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SQL> select table_name,cache from user_tables where instr(cache, 'Y' )>0;
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3、索引
查看索引个数和类别
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SQL> select index_name,index_type,table_name from user_indexes order by table_name;
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查看索引被索引的字段
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SQL> select * from user_ind_columns where index_name= upper ( '&index_name' );
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查看索引的大小
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SQL> select sum (bytes)/(1024*1024) as "size(M)" from user_segments where segment_name= upper ( '&index_name' );
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4、序列号
查看序列号,last_number是当前值
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SQL> select * from user_sequences;
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5、视图
查看视图的名称
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SQL> select view_name from user_views;
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查看创建视图的select语句
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SQL> set view_name,text_length from user_views;
SQL> set long 2000; 说明:可以根据视图的text_length值设定 set long 的大小
SQL> select text from user_views where view_name= upper ( '&view_name' );
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6、同义词
查看同义词的名称
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SQL> select * from user_synonyms;
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7、约束条件
查看某表的约束条件
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SQL> select constraint_name, constraint_type,search_condition, r_constraint_name from user_constraints where table_name = upper ( '&table_name' );
SQL> select c.constraint_name,c.constraint_type,cc.column_name from user_constraints c,user_cons_columns cc where c.owner = upper ( '&table_owner' )
and c.table_name = upper ( '&table_name' )
and c.owner = cc.owner and c.constraint_name = cc.constraint_name
order by cc.position;
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8、存储函数和过程
查看函数和过程的状态
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SQL> select object_name,status from user_objects where object_type= 'FUNCTION' ;
SQL> select object_name,status from user_objects where object_type= 'PROCEDURE' ;
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查看函数和过程的源代码
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SQL> select text from all_source where owner= user and name = upper ( '&plsql_name' );
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9、查看建表语句
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SELECT DBMS_METADATA.GET_DDL( 'TABLE' , 'TABLE_NAME' ) FROM DUAL; #(表名TABLE_NAME一定要来大写)
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本文转自lq201151CTO博客,原文链接:http://blog.51cto.com/liuqun/2051386 ,如需转载请自行联系原作者