SQLSERVER数据库备份后无法还原的解决办法
有时候完全备份, 当还原的时候说不时数据库文件不让还原, 解决办法: 可以直接复制数据库文件, xxx.mdf 和 xxx.ldf (实际复制过程中需要先停止sqlserver服务才可以) 用 sp_attach_db 存储过程 就能搞定. 示例 下面的示例将 pubs 中的两个文件附加到当前服务
有时候完全备份, 当还原的时候说不时数据库文件不让还原, 解决办法:
可以直接复制数据库文件, xxx.mdf 和 xxx.ldf (实际复制过程中需要先停止sqlserver服务才可以)
用 sp_attach_db 存储过程 就能搞定.
示例
下面的示例将 pubs 中的两个文件附加到当前服务器。
EXEC sp_attach_db @dbname = N'pubs',
@filename1 = N'c:Program FilesMicrosoft SQL ServerMSSQLDatapubs.mdf',
@filename2 = N'c:Program FilesMicrosoft SQL ServerMSSQLDatapubs_log.ldf'
N 表示Unicode的含义,就象类型中有varchar和nvarchar一样,一个Unicode字符占两个字节.使用N'的情况主要是在双字节系统环 境中强制系统对每个字符用Unicode标准来解释,否则如果你的数据库.mdf文件是中文名而又不加N'的话,数据库加载后名称可能就变成乱码,因为系 统按单字节处理字符造成!
............................................................
如果确认是SQL SERVER无法启动,请按照下面步骤操作:
1.重装SQL SERVER(注意要保留原来数据库的数据库文件,日志文件可不要)
2.在SQL Analysis中用sp_attach_db将数据库加到服务器
sp_attach_db用法:
sp_attach_db
将数据库附加到服务器。
语法
sp_attach_db [ @dbname = ] 'dbname'
, [ @filename1 = ] 'filename_n' [ ,...16 ]
参数
[@dbname =] 'dbname'
要附加到服务器的数据库的名称。该名称必须是唯一的。dbname 的数据类型为 sysname,,默认值为 NULL。
[@filename1 =] 'filename_n'
数 据库文件的物理名称,包括路径。filename_n 的数据类型为 nvarchar(260),默认值为 NULL。最多可以指定 16 个文件名。参数名称以 @filename1 开始,递增到 @filename16。文件名列表至少必须包括主文件,主文件包含指向数据库中其它文件的系统表。该列表还必须包括数据库分离后所有被移动的文件。
返回代码值
0(成功)或 1(失败)
结果集
无
注释
只应对以前使用显式 sp_detach_db 操作从数据库服务器分离的数据库执行 sp_attach_db。如果必须指定多于 16 个文件,请使用带有 FOR ATTACH 子句的 CREATE DATABASE。
如果将数据库附加到的服务器不是该数据库从中分离的服务器,并且启用了分离的数据库以进行复制,则应该运行 sp_removedbreplication 从数据库删除复制。
权限
只有 sysadmin 和 dbcreator 固定服务器角色的成员才能执行本过程。

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

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

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics











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.

Apple's latest releases of iOS18, iPadOS18 and macOS Sequoia systems have added an important feature to the Photos application, designed to help users easily recover photos and videos lost or damaged due to various reasons. The new feature introduces an album called "Recovered" in the Tools section of the Photos app that will automatically appear when a user has pictures or videos on their device that are not part of their photo library. The emergence of the "Recovered" album provides a solution for photos and videos lost due to database corruption, the camera application not saving to the photo library correctly, or a third-party application managing the photo library. Users only need a few simple steps

To handle database connection errors in PHP, you can use the following steps: Use mysqli_connect_errno() to obtain the error code. Use mysqli_connect_error() to get the error message. By capturing and logging these error messages, database connection issues can be easily identified and resolved, ensuring the smooth running of your application.

How to use MySQLi to establish a database connection in PHP: Include MySQLi extension (require_once) Create connection function (functionconnect_to_db) Call connection function ($conn=connect_to_db()) Execute query ($result=$conn->query()) Close connection ( $conn->close())

Using the database callback function in Golang can achieve: executing custom code after the specified database operation is completed. Add custom behavior through separate functions without writing additional code. Callback functions are available for insert, update, delete, and query operations. You must use the sql.Exec, sql.QueryRow, or sql.Query function to use the callback function.

JSON data can be saved into a MySQL database by using the gjson library or the json.Unmarshal function. The gjson library provides convenience methods to parse JSON fields, and the json.Unmarshal function requires a target type pointer to unmarshal JSON data. Both methods require preparing SQL statements and performing insert operations to persist the data into the database.

Many people may encounter the problem of their mobile phones being too cold and automatically shutting down. As mobile phones become more and more important in our lives. It may also have a negative impact on the lifespan of your phone, which is more than just an inconvenience. Provide some solutions. In order to solve this problem, this article will start with the reasons why the mobile phone shuts down when it is too cold. 1. Reasons why the mobile phone shuts down when it is too cold: Understand the root cause of the problem. The internal protection mechanism of the mobile phone will cause the shutdown. The mobile phone is prone to overheating in low temperature environments, and once the temperature drops too fast. 2. How to avoid overcooling your phone: Maintaining a suitable temperature, such as sub-zero outdoor temperatures, can reduce the risk of shutdown due to overcooling by avoiding exposing your phone to extremely cold environments. 3. Avoid using your phone for a long time in cold environments: Using your phone for a long time can cause your phone to overheat.

Through the Go standard library database/sql package, you can connect to remote databases such as MySQL, PostgreSQL or SQLite: create a connection string containing database connection information. Use the sql.Open() function to open a database connection. Perform database operations such as SQL queries and insert operations. Use defer to close the database connection to release resources.
