- 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;
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- 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='GAME';
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- 2、表
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- 查看用户下所有的表
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- SQL>select * from user_tables;
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- SELECT * FROM ALL_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
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- 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
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- 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
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- 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
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- where segment_name=upper('&index_name');
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- 4、序列号
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- 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
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- 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;
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- SQL>set long 2000; 说明:可以根据视图的text_length值设定set long 的大小
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- SQL>select text from user_views where view_name=upper('&view_name');
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- 6、同义词
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- 查看同义词的名称
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- SQL>select * from user_synonyms;
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- SELECT * FROM ALL_SYSNONYMS;
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- 7、约束条件
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- 查看某表的约束条件
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- SQL>select constraint_name, constraint_type,search_condition, r_constraint_name
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- from user_constraints where table_name = upper('&table_name');
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- SQL>select c.constraint_name,c.constraint_type,cc.column_name
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- from user_constraints c,user_cons_columns cc
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- where c.owner = upper('&table_owner') and c.table_name = upper('&table_name')
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- and c.owner = cc.owner and c.constraint_name = cc.constraint_name
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- order by cc.position;
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- 8、存储函数和过程
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- 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';
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- 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');