一、簡介序列對象(也叫序列產生器)就是用CREATE SEQUENCE 建立的特殊的單行表。一個序列對象通常用於為行或者表產生唯一的標識符。二、建立序列方法一:直接在表中指定欄位類型為serial 類型david=# create table tbl_xulie (david(# id serial,david(# name text);NOTICE: CREATE TABLE will create implicit sequence "tbl_xulie_id_seq" for
標籤:PG>9.2postgres=# SELECT blocked_locks.pid AS blocked_pid,postgres-# blocked_activity.usename AS blocked_user,postgres-# blocking_locks.pid AS blocking_pid,postgres-# blocking_activity.usename AS
標籤:-- configs requiring postgresql restartselect name, setting, context from pg_settings where context = ‘postmaster‘;postgres=# select name, setting, contextpostgres-# from pg_settings where context = ‘postmaster‘; name
標籤:If we don‘t already have PostgreSQL installed, we must install it.$ sudo apt-get install postgresqlThis command installs the PostgreSQL server and various other packages. $ sudo update-rc.d -f postgresql remove Removing any system
標籤:The bucardo project has released its nagios plugins for PostgreSQL and we can extract from them this nice view in order to check for table and index bloatinto our PostgreSQL databases:下面是檢查資料表空間的使用方式的指令碼:CREATE