一、用户
查看当前用户的缺省表空间
SQL>select username,default_tablespace from user_users;
查看当前用户的角色
SQL>select * from user_role_privs;
查看当前用户的系统权限和表级权限
SQL>select * from user_sys_privs;
SQL>select * from user_tab_privs;
二、表
查看用户下所有的表
SQL>select * from user_tables;
查看名称包含log字符的表
SQL>select object_name,object_id from user_objects
where instr(object_name,"LOG")>0;
查看某表的创建时间
SQL>select object_name,created from user_objects where object_name=upper("&table_name");
查看某表的大小
SQL>select sum(bytes)/(1024*1024) as "size(M)" from user_segments
where segment_name=upper("&table_name");
查看放在ORACLE的内存区里的表
SQL>select table_name,cache from user_tables where instr(cache,"Y")>0;
三、索引
查看索引个数和类别
SQL>select index_name,index_type,table_name from user_indexes order by table_name;
查看索引被索引的字段
SQL>select * from user_ind_columns where index_name=upper("&index_name");
查看索引的大小
SQL>select sum(bytes)/(1024*1024) as "size(M)" from user_segments
where segment_name=upper("&index_name");
四、序列号
查看序列号，last_number是当前值
SQL>select * from user_sequences;
五、视图
查看视图的名称
SQL>select view_name from user_views;
查看创建视图的select语句
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");
六、同义词
查看同义词的名称
SQL>select * from user_synonyms;
七、约束条件
查看某表的约束条件
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;
八、存储函数和过程
查看函数和过程的状态
SQL>select object_name,status from user_objects where object_type="FUNCTION";
SQL>select object_name,status from user_objects where object_type="PROCEDURE";
查看函数和过程的源代码
SQL>select text from all_source where owner=user and name=upper("&plsql_name");
九、触发器
查看触发器
set long 50000;
set heading off;
set pagesize 2000;
select
"create or replace trigger "" ||
trigger_name || """ || chr(10)||
decode( substr( trigger_type, 1, 1 ),
"A", "AFTER", "B", "BEFORE", "I", "INSTEAD OF" ) ||
chr(10) ||
triggering_event || chr(10) ||
"ON "" || table_owner || ""."" ||
table_name || """ || chr(10) ||
decode( instr( trigger_type, "EACH ROW" ), 0, null,
"FOR EACH ROW" ) || chr(10) ,
trigger_body
from user_triggers;
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