http://stackoverflow.com/questions/7892334/get-size-of-all-tables-in-database SELECT t.NAME AS TableName, s.Name AS SchemaName, p.rows AS RowCounts, AS TotalSpaceKB, AS UsedSpaceKB, ( AS UnusedSpaceKB FROM sys.tables t INNER JOIN sys.indexes i ON t.O…

MySQL :: MySQL 8.0 Reference Manual :: C.10.4 Limits on Table Column Count and Row Size https://dev.mysql.com/doc/refman/8.0/en/column-count-limit.html CREATE TABLE `pv` ( `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键ID', `uid` int(11) NOT NULL…

1. show databases mysql> show databases;+--------------------+| Database |+--------------------+| information_schema || mysql || performance_schema || test |+--------------------+4 rows in set (0.00 sec) 2. use database_name mysql> use testDatabase…

之前我们讨论了dbcc shrinkfile改变tempdb initial size的情况.而用DBCC Shrinkfile去收缩一个user database,情况就比较简单了.让我们通过一些测试来说明SQL Server 收缩user database的行为.   首先创建了一个数据库,Sales_data的初始大小为3mb. 对于当前这个数据库文件来说,它的initial size为3mb. CREATE DATABASE Sales ON ( NAME = Sales_dat, FI…

P6 EPPM Manual Installation Guide (Oracle Database) P6 EPPM Manual Installation Guide (Oracle Database) Contents Oracle Database Manual Configuration Overview ,,★★5 Oracle Database Installation ,,★★6 Creating the Database Structure for Oracle and Loa…

P6 Professional Installation and Configuration Guide (Microsoft SQL Server Database) 16 R1       May 2016 Contents About This Guide...................................................................................... 11 Shared Topics in This Guide .…

原文 Display Database Image using MS SQL Server 2008 Reporting Services With the new release of MS SQL Server 2008 Reporting Services has introduced a new feature that will help report developers (Business Intelligence BI professionals) to display imag…

If you're storing anything in MySQL databases that you do not want to lose, it is very important to make regular backups of your data to protect it from loss. This tutorial will show you two easy ways to backup and restore the data in your MySQL data…

启动和关闭Oracle数据库 要启动和关闭数据库,必须要以具有Oracle 管理员权限的用户登陆,通常也就是以具有SYSDBA权限的用户登陆.一般我们常用INTERNAL用户来启动和关闭数据库(INTERNAL用户实际上是SYS用户以SYSDBA连接的同义词).Oracle数据库的新版本将逐步淘汰INTERNAL这个内部用户,所以我们最好还是设置DBA用户具有SYSDBA权限. 数据库的启动(STARTUP) 启动一个数据库需要三个步骤: 创建一个Oracle实例(非安装阶段) 由实例安装数据库…

作者:david_zhang@sh [转载时请以超链接形式标明文章] http://www.cnblogs.com/david-zhang-index/p/5042640.html参照文档:https://azure.microsoft.com/en-us/documentation/articles/virtual-machines-configuring-oracle-data-guard/?cdn=disable#implement-the-physical-standby-databas…