PostgreSQL獲取數據庫中所有view名 視圖:
SELECT viewname FROM pg_views WHERE schemaname ='public'
postgreSQL獲取數據庫中所有table名 表:
SELECT tablename FROM pg_tables WHERE tablename NOT LIKE 'pg%' AND tablename NOT LIKE 'sql_%' ORDER BY tablename;
postgreSQL獲取某個表tablename 所有字段名稱 , 類型,備註,是否爲空 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獲取某個表tablename 的主鍵信息
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'