PostgreSQL 查找当前数据库的所有表操作

实现的功能类似MySQL：

show tables;

在 PostgreSQL 中需要写：

select * from pg_tables where schemaname = 'public';

返回结果类似如下：

									schemaname | tablename | tableowner | tablespace | hasindexes | hasrules | hastriggers | rowsecurity 

									------------+-----------+------------+------------+------------+----------+-------------+-------------

									 public  | deploy | postgres |   | t   | f  | f   | f

									 public  | deploy2 | postgres |   | f   | f  | f   | f

									(2 rows)

补充：PostgreSql 获取所有的表、视图、字段、主键

PostgreSQL获取数据库中所有view名视图：

1 2	`SELECT` `viewname` `FROM` `pg_views` `WHERE` `schemaname ='public'`

postgreSQL获取数据库中所有table名表：

									SELECT tablename FROM pg_tables 

									WHERE tablename NOT LIKE 'pg%'

									AND tablename NOT LIKE 'sql_%'

									ORDER BY tablename;

postgreSQL获取某个表tablename 所有字段名称，类型，备注,是否为空等

									SELECT col_description(a.attrelid,a.attnum) as comment,pg_type.typname as typename,a.attname as name, a.attnotnull as notnull

									FROM pg_class as c,pg_attribute as a inner join pg_type on pg_type.oid = a.atttypid

									where c.relname = 'tablename' and a.attrelid = c.oid and a.attnum>0

postgreSQL获取某个表tablename 的主键信息

									select pg_attribute.attname as colname,pg_type.typname as typename,pg_constraint.conname as pk_name from

									pg_constraint inner join pg_class 

									on pg_constraint.conrelid = pg_class.oid 

									inner join pg_attribute on pg_attribute.attrelid = pg_class.oid 

									and pg_attribute.attnum = pg_constraint.conkey[1]

									inner join pg_type on pg_type.oid = pg_attribute.atttypid

									where pg_class.relname = 'tablename'

									and pg_constraint.contype='p'

以上为个人经验，希望能给大家一个参考，也希望大家多多支持服务器之家。如有错误或未考虑完全的地方，望不吝赐教。

原文链接：https://blog.csdn.net/panguangyuu/article/details/90052039

PostgreSQL 查找当前数据库的所有表操作

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