已备份的磁盘上结构版本为611. 服务器支持版本539, 无法还原或升级此数据库，restore database 操作异常终止。
远程服务器主机上安装了sql server 2005，备份的时候使用虚拟主机自带的还原工具备份数据库为data.dat格式的，在本机sql2000想还原数据库的时候，出现提示“已备份数据库的磁盘上结构版本为611. 服务器支持版本539, 无法还原或升级此数据库，restore database 操作异常终止。”
这是由于sql数据库高版本2005向下兼容，但低版本的sql2000不能处理sql2005的数据库格式造成的。客户端必须使用sql2005才能正确还原已经备份的数据库文件。这就需要安装sql 2005，但是sql 2005的一个开发版源文件就达 3.76gb 的大小，x86的也有1gb大小，安装过程更是需要个把小时，这对飘易来说，无疑是个巨大的时间浪费。
那如何解决呢？飘易采取的是下载精简版的 sql 2005的服务器端和客户端，2个文件加起来一共才85m大小，安装的实际也仅仅需要10分钟不到，这比原版的安装时间那可是一个巨大的反差。
好了，飘易就来说说如何安装精简版的 mssql 2005，首先下载服务器端的软件：microsoft sql server 2005 express edition ，这个版本其实就是sql 2005的精减版。
microsoft sql server 2005 express edition (sql server express) 是一种免费、易用的轻量版 sql server 2005，具有快速且易于掌握的特点，可用于快速开发和部署动态数据驱动的应用程序。sql server express 提供强大而可靠的数据管理工具，它功能丰富，能够保护数据并提高性能。它适用于嵌入式应用程序客户端、轻型 web 应用程序以及本地数据存储区。sql server express 具有易于部署以及可以快速设计原型的特点，您可以无偿获取并可以随应用程序免费再分发。如果需要更多的高级数据库功能，可将 sql server express 无缝升级到更复杂的 sql server 版本。
下载地址：microsoft sql server 2005 express edition 官方简体中文版 ：
上面的仅仅是个服务器软件，我们还要下载一个图形化客户端管理工具：microsoft sql server management studio express 。下载地址：
上面的这2个软件下载好，顺序安装完毕，再次还原刚才的2005的备份文件就没问题了，不会再出现“已备份数据库的磁盘上结构版本为611. 服务器支持版本539, 无法还原或升级此数据库，restore database 操作异常终止”这样的提示，如果你备份的数据库后缀是 .bat 的，可以直接改为 .bak，因为sql2005只认 .bak 的后缀。
针对sql2000升级到sql2005后出现的数据库架构不一样的情况，可以在 查询分析器里或里执行以下语句：
exec sp_msforeachtable @command1="exec sp_changeobjectowner '?','dbo'"
该语句调用系统存储过程 sp_msforeachtable 批量修改数据表的架构名为 dbo
What are stored procedures in MySQL?May 01, 2025 am 12:27 AMStored procedures are precompiled SQL statements in MySQL for improving performance and simplifying complex operations. 1. Improve performance: After the first compilation, subsequent calls do not need to be recompiled. 2. Improve security: Restrict data table access through permission control. 3. Simplify complex operations: combine multiple SQL statements to simplify application layer logic.
How does query caching work in MySQL?May 01, 2025 am 12:26 AMThe working principle of MySQL query cache is to store the results of SELECT query, and when the same query is executed again, the cached results are directly returned. 1) Query cache improves database reading performance and finds cached results through hash values. 2) Simple configuration, set query_cache_type and query_cache_size in MySQL configuration file. 3) Use the SQL_NO_CACHE keyword to disable the cache of specific queries. 4) In high-frequency update environments, query cache may cause performance bottlenecks and needs to be optimized for use through monitoring and adjustment of parameters.
What are the advantages of using MySQL over other relational databases?May 01, 2025 am 12:18 AMThe reasons why MySQL is widely used in various projects include: 1. High performance and scalability, supporting multiple storage engines; 2. Easy to use and maintain, simple configuration and rich tools; 3. Rich ecosystem, attracting a large number of community and third-party tool support; 4. Cross-platform support, suitable for multiple operating systems.
How do you handle database upgrades in MySQL?Apr 30, 2025 am 12:28 AMThe steps for upgrading MySQL database include: 1. Backup the database, 2. Stop the current MySQL service, 3. Install the new version of MySQL, 4. Start the new version of MySQL service, 5. Recover the database. Compatibility issues are required during the upgrade process, and advanced tools such as PerconaToolkit can be used for testing and optimization.
What are the different backup strategies you can use for MySQL?Apr 30, 2025 am 12:28 AMMySQL backup policies include logical backup, physical backup, incremental backup, replication-based backup, and cloud backup. 1. Logical backup uses mysqldump to export database structure and data, which is suitable for small databases and version migrations. 2. Physical backups are fast and comprehensive by copying data files, but require database consistency. 3. Incremental backup uses binary logging to record changes, which is suitable for large databases. 4. Replication-based backup reduces the impact on the production system by backing up from the server. 5. Cloud backups such as AmazonRDS provide automation solutions, but costs and control need to be considered. When selecting a policy, database size, downtime tolerance, recovery time, and recovery point goals should be considered.
What is MySQL clustering?Apr 30, 2025 am 12:28 AMMySQLclusteringenhancesdatabaserobustnessandscalabilitybydistributingdataacrossmultiplenodes.ItusestheNDBenginefordatareplicationandfaulttolerance,ensuringhighavailability.Setupinvolvesconfiguringmanagement,data,andSQLnodes,withcarefulmonitoringandpe
How do you optimize database schema design for performance in MySQL?Apr 30, 2025 am 12:27 AMOptimizing database schema design in MySQL can improve performance through the following steps: 1. Index optimization: Create indexes on common query columns, balancing the overhead of query and inserting updates. 2. Table structure optimization: Reduce data redundancy through normalization or anti-normalization and improve access efficiency. 3. Data type selection: Use appropriate data types, such as INT instead of VARCHAR, to reduce storage space. 4. Partitioning and sub-table: For large data volumes, use partitioning and sub-table to disperse data to improve query and maintenance efficiency.
How can you optimize MySQL performance?Apr 30, 2025 am 12:26 AMTooptimizeMySQLperformance,followthesesteps:1)Implementproperindexingtospeedupqueries,2)UseEXPLAINtoanalyzeandoptimizequeryperformance,3)Adjustserverconfigurationsettingslikeinnodb_buffer_pool_sizeandmax_connections,4)Usepartitioningforlargetablestoi
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
SublimeText3 English version
Recommended: Win version, supports code prompts!
ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment
MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.
Dreamweaver CS6
Visual web development tools
mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),
