select schemaname,tablename,pg_relation_size(schemaname||'.'||tablename) as tabsize from pg_tables order by 3 desc; select schemaname,tablename,pg_table_size(schemaname||'.'||tablename) as tabsize from pg_tables order by 3 desc;…

工作中常用命令参考,收集如下: 查询表大小:select table_name, data_length from information_schema.tables where table_schema='testTable'; 查询表行数(基于information_schema)SELECT t.TABLE_SCHEMA,t.TABLE_NAME,t.TABLE_ROWS,t.CREATE_TIME,t.UPDATE_TIME FROM information_schema.TABLES…

查询单个表 select pg_size_pretty(pg_relation_size('table_name')); 按size大小排序列出所有表 SELECT table_schema || '.' || table_name AS table_full_name, pg_size_pretty(pg_total_relation_size('"' ||table_schema || '"."' || table_name || '"')) AS size F…

IF OBJECT_ID('tempdb..#TB_TEMP_SPACE') IS NOT NULL DROP TABLE #TB_TEMP_SPACE GO CREATE TABLE #TB_TEMP_SPACE( NAME ) ,ROWS INT ,RESERVED ) ,DATA ) ,INDEX_SIZE ) ,UNUSED ) ) GO SP_MSFOREACHTABLE 'INSERT INTO #TB_TEMP_SPACE exec sp_spaceused ''?''' GO S…

The vacuum_freeze_min_age setting determines the youngest XID which will be changed to FrozenXID on data pages which are being vacuumed anyway.  The advantage of setting it low is that far more XIDs will already be frozen when the data page is finall…

命令列表 /usr/bin/pt-agent /usr/bin/pt-align /usr/bin/pt-archiver /usr/bin/pt-config-diff /usr/bin/pt-deadlock-logger /usr/bin/pt-diskstats /usr/bin/pt-duplicate-key-checker /usr/bin/pt-fifo-split /usr/bin/pt-find /usr/bin/pt-fingerprint /usr/bin/pt-fk-e…

一.查询表大小,块多少语句 Select SEGMENT_Name,BYTES,BLOCKS,Extents From dba_segments Where segment_name In('BAI_NEW_SESSION_HISTORY2') order by segment_name; (2)查表空间 Select Tablespace_Name, Sum(bytes)/1024/1024 From Dba_Segments group By Tablespace_Name (3)可以用输入…

相关链接与资源: sqldevelper(各种操作系统的oracle客户端) http://www.oracle.com/technetwork/cn/developer-tools/sql-developer/downloads/index.html oracle11g r2下载地址: http://www.oracle.com/technetwork/database/enterprise-edition/downloads/112010-linx8664soft-100572.html c…

-- 查询未空闲的进程信息 select * from pg_stat_activity where current_query<>'<IDLE>'; 结果可查看数据库名,进程标识符,用户名,查询语句,是否锁表,查询开始时间,客户端地址等信息. 当执行错误或者锁表,可在客户端处理,可先用取消进程,如果不好用可用终止进程. -- GP查看数据锁 SELECT pid,rolname, rsqname, granted, current_query, datname FROM pg_r…

check Archiving processing 查看日志归档情况 db2 "SELECT DATE(CAST(START_TIME as TIMESTAMP)) as DATE, count(*) as NUMBER_OF_LOGS_PER_DAY, (count(*)*23.4375) as AMOUNT_LOGS_DAY_MB, DBPARTITIONNUM as DBPART FROM SYSIBMADM.DB_HISTORY WHERE operation = 'X' -- Arc…