psql裏
查看全部庫:\l
查看全部表: \dt
查看某個表的結構: \d 表名 sql
對應的MySQL命令:
查看有那些庫能夠:show databases ---postgreSQL是什麼呢?
show tables ---->postgreSQL是什麼?
還有怎麼查看錶結構呢? post
------------------------------------------------------------------------------------------------ get
查看自增字段的當前值: table
select currval(pg_get_serial_sequence('table_name','column_name')); select
獲取自增字段的下一個值: next
select nextval(pg_get_serial_sequence('table_name','column_name')); tab
設置自增字段的值: co
setval(pg_get_serial_sequence('table_name', 'column_name'),9); data
或者select setval(pg_get_serial_sequence('table_name', 'column_name'),9);#select能夠直接查看設置後的值 ps
自動設置爲當前列裏面最大值的下一個值:
select setval(pg_get_serial_sequence('table_name','column_name'),(select max(column_name) from table_name)+1 );