Home Database Mysql Tutorial 通过SQL语句来备份,还原数据库

通过SQL语句来备份,还原数据库

Jun 07, 2016 pm 06:01 PM
sql backup

这里仅仅用到了一种方式而已,把数据库文件备份到磁盘然后在恢复.

eg:
代码如下:
/*
通过SQL 语句备份数据库
*/
BACKUP DATABASE mydb
TO DISK ='C:\DBBACK\mydb.BAK'
--这里指定需要备份数据库的路径和文件名,注意:路径的文件夹是必须已经创建的.文件名可以使用日期来标示
/*
通过SQL语句还原数据库
*/
USE master
RESTORE DATABASE mydb
FROM DISK='C:\DBBACK\mydb.BAK'
WITH REPLACE

注意:很多时候不能直接还原,因为数据不是独占打开.可能用到下面的过程
代码如下:
--Kill掉访问某个数据库的连接
CREATE PROC KillSpid(@DBName varchar)
AS
BEGIN
DECLARE @SQL varchar
DECLARE @SPID int
SET @SQL='DECLARE CurrentID CURSOR FOR
SELECT spid FROM sysprocesses WHERE dbid=db_id('''+@DBName+''') '
FETCH NEXT FROM CurrentID INTO @SPID
WHILE @@FETCH_STATUS -1
BEGIN
exec('KILL '+@SPID)
FETCH NEXT FROM CurrentID INTO @SPID
END
CLOSE CurrentID
DEALLOCATE CurrentID
END

当kill掉用户后最好使用单用户操作数据库
代码如下:
SP_DBOPTION @DBName,'single user','true'
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

What is the difference between HQL and SQL in Hibernate framework? What is the difference between HQL and SQL in Hibernate framework? Apr 17, 2024 pm 02:57 PM

HQL and SQL are compared in the Hibernate framework: HQL (1. Object-oriented syntax, 2. Database-independent queries, 3. Type safety), while SQL directly operates the database (1. Database-independent standards, 2. Complex executable queries and data manipulation).

How to backup Google Chrome extensions How to backup Google Chrome extensions Jan 30, 2024 pm 12:36 PM

How to backup Google Chrome extension? For most Google Chrome users, more or less plug-ins are installed during daily use. The existence of plug-ins can improve our usage experience. When we reinstall the system or browser, these plug-ins cannot be retained, and it is troublesome to download and install them again. So is there a way to back up the currently installed plug-ins? Here’s how to do it. The tutorial method of backing up chrome plug-ins first opens Google Chrome, click the menu in the upper right corner, and select More Tools - Extensions. Click Package extension above the extensions page. In C:UsersAdministratorAppDataLocalGoogleChromeUserDataDe

Usage of division operation in Oracle SQL Usage of division operation in Oracle SQL Mar 10, 2024 pm 03:06 PM

"Usage of Division Operation in OracleSQL" In OracleSQL, division operation is one of the common mathematical operations. During data query and processing, division operations can help us calculate the ratio between fields or derive the logical relationship between specific values. This article will introduce the usage of division operation in OracleSQL and provide specific code examples. 1. Two ways of division operations in OracleSQL In OracleSQL, division operations can be performed in two different ways.

Comparison and differences of SQL syntax between Oracle and DB2 Comparison and differences of SQL syntax between Oracle and DB2 Mar 11, 2024 pm 12:09 PM

Oracle and DB2 are two commonly used relational database management systems, each of which has its own unique SQL syntax and characteristics. This article will compare and differ between the SQL syntax of Oracle and DB2, and provide specific code examples. Database connection In Oracle, use the following statement to connect to the database: CONNECTusername/password@database. In DB2, the statement to connect to the database is as follows: CONNECTTOdataba

Detailed explanation of the Set tag function in MyBatis dynamic SQL tags Detailed explanation of the Set tag function in MyBatis dynamic SQL tags Feb 26, 2024 pm 07:48 PM

Interpretation of MyBatis dynamic SQL tags: Detailed explanation of Set tag usage MyBatis is an excellent persistence layer framework. It provides a wealth of dynamic SQL tags and can flexibly construct database operation statements. Among them, the Set tag is used to generate the SET clause in the UPDATE statement, which is very commonly used in update operations. This article will explain in detail the usage of the Set tag in MyBatis and demonstrate its functionality through specific code examples. What is Set tag Set tag is used in MyBati

How to delete startup backup in Windows 11's File Explorer How to delete startup backup in Windows 11's File Explorer Feb 18, 2024 pm 05:40 PM

If you wish to hide the "Start Backup" option in Windows 11's File Explorer, here's what you can do. There are several ways to disable or hide the startup backup option in File Explorer, and we'll briefly list some methods to help you accomplish this task quickly. Before you get started, you need to understand that this option is closely tied to OneDrive. Once you open a library folder (such as Document, Pictures, Music, etc.), it will immediately appear in the file explorer's path. How to delete startup backup in Windows 11’s File Explorer To delete startup backup in Windows 11’s File Explorer, follow the steps below

How to use MySQL backup and restore in PHP? How to use MySQL backup and restore in PHP? Jun 03, 2024 pm 12:19 PM

Backing up and restoring a MySQL database in PHP can be achieved by following these steps: Back up the database: Use the mysqldump command to dump the database into a SQL file. Restore database: Use the mysql command to restore the database from SQL files.

What does the identity attribute in SQL mean? What does the identity attribute in SQL mean? Feb 19, 2024 am 11:24 AM

What is Identity in SQL? Specific code examples are needed. In SQL, Identity is a special data type used to generate auto-incrementing numbers. It is often used to uniquely identify each row of data in a table. The Identity column is often used in conjunction with the primary key column to ensure that each record has a unique identifier. This article will detail how to use Identity and some practical code examples. The basic way to use Identity is to use Identit when creating a table.

See all articles