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实现的功能类似MySQL:
在 PostgreSQL 中需要写:
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: 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极客世界。如有错误或未考虑完全的地方,望不吝赐教。 |
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