Oracle查询数据库表信息SQL

-- 查询表信息
SELECT * FROM user_tables;

SELECT * FROM all_tables;

SELECT * FROM dba_tables;  --需要有DBA 权限才可以的

-- 查询当前用户下的所有对象
select * from tab t;

SELECT distinct(tabtype) FROM tab;

-- 查询索引信息
SELECT * FROM user_indexes;

SELECT * FROM user_indexes i where i.table_name like '%BASE%';

SELECT * FROM dba_views;

SELECT * FROM user_ind_columns;

-- 查询视图信息
SELECT * FROM user_views;

-- 查询约束
-- USER_CONSTRAINTS describes all constraint definitions on tables owned by the current user. Its columns are the same as those in "ALL_CONSTRAINTS".
SELECT * FROM user_constraints;

-- ALL_CONSTRAINTS describes constraint definitions on tables accessible to the current user.
SELECT * FROM ALL_CONSTRAINTS;