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：
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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：
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SELECT viewname FROM pg_views WHERE schemaname = 'public' |
postgreSQL获取数据库中所有table名 表：
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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
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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
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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
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