[SQLServer]NetCore中将SQLServer数据库备份为Sql脚本

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所属分类:.NET技术
摘要

描述:最近写项目收到了一个需求, 就是将SQL Server数据库备份为Sql脚本, 如果是My Sql之类的还好说, 但是在网上搜了一大堆, 全是教你怎么操作SSMS的, 就很d疼!


NetCore中将SQLServer数据库备份为Sql脚本

描述:

最近写项目收到了一个需求, 就是将SQL Server数据库备份为Sql脚本, 如果是My Sql之类的还好说, 但是在网上搜了一大堆, 全是教你怎么操作SSMS的, 就很d疼!

解决方案:

通过各种查找资料, 还有一些老哥的帮助, 找到了解决方案:

通过Microsoft.SqlServer.Management.Smo, Microsoft.SqlServer.Management.Sdk.Sfc, Microsoft.SqlServer.Management.Common来解决, 但是不巧的是, 这个方法可能只适用于.Net Framework, 并且微软已经提供一个合集的类库封装为Microsoft.SqlServer.Scripts. 但是我是一个Net5的项目!

但是最后还是找到了, 微软封装了一个其它包...emmMicrosoft.SqlServer.SqlManagementObjects, 此类库可以适用于Net Core.

By: 胖纸不争
NetCore🐧群: 743336452

基本使用

Server server = new Server(     new ServerConnection(         // 服务器IP         _dbBackupOptions.ServerInstance,         // 登录名         _dbBackupOptions.Username,         // 密码         _dbBackupOptions.Password         ) ); // 获取数据库 Database templateDb = server.Databases[_dbBackupOptions.DatabaseName]; // 脚本导出路径 string sqlFilePath = string.Format("{0}.sql", $"{dbBackupPath}/{name}"); // 自定义规则 var startWith = _dbBackupOptions.FormatTables.Where(x => x.EndsWith("*")).Select(x => x.TrimEnd('*')); var endWith = _dbBackupOptions.FormatTables.Where(x => x.StartsWith("*")).Select(x => x.TrimStart('*'));  if (_dbBackupOptions.FormatTables is not null && _dbBackupOptions.FormatTables.Any()) {     foreach (Table tb in templateDb.Tables)     {         if (_dbBackupOptions.FormatTables.Contains(tb.Name) ||             startWith.Where(x => tb.Name.StartsWith(x)).Any() ||             endWith.Where(x => tb.Name.EndsWith(x)).Any())         {             // 按表获取Sql             IEnumerable<string> sqlStrs = tb.EnumScript(_dbBackupOptions.ScriptingOptions);             // 将Sql向文件中追加             using (StreamWriter sw = new StreamWriter(sqlFilePath, true, Encoding.UTF8))             {                 foreach (var sql in sqlStrs)                 {                     sw.WriteLine(sql);                     sw.WriteLine("GO");                 }             }         }     } } else {     foreach (Table tb in templateDb.Tables)     {         IEnumerable<string> sqlStrs = tb.EnumScript(_dbBackupOptions.ScriptingOptions);         using (StreamWriter sw = new StreamWriter(sqlFilePath, true, Encoding.UTF8))         {             foreach (var sql in sqlStrs)             {                 sw.WriteLine(sql);                 sw.WriteLine("GO");             }         }     } } 

开箱即用(封装库Powers.DbBackup)

我针对这个封装了一个类库, Powers.DBackup方便简单使用.

GitHub地址: Powers.DbBackup

配置DbBackup

1. In Startup.cs(Net5):

services.AddDbBackup(); 

appsettings.json:

"DbBackupOptions": {     // remote server     "ServerInstance": "192.168.31.36",     // database username     "Username": "sa",     // password     "Password": "sa123.",     // ddatabase name     "DatabaseName": "PumInfoShop",     // output options     "ScriptingOptions": {       "DriAll": false,       "ScriptSchema": true,       "ScriptData": true,       "ScriptDrops": false     },     // match rules     /**      * Include 3 rules:      * 1. Full name: UserTable      * 2. Start with: Sys*      * 3. End with: *Table      */     "FormatTables": []   } 

OR

services.AddDbBackup(opts => {     opts.ServerInstance = "127.0.0.1";     opts.Username = "sa";     opts.Password = "123456";     opts.DatabaseName = "TestDb";     opts.ScriptingOptions = new ScriptingOptions     {         DriAll = true,         ScriptSchema = true,         ScriptData = true,         ScriptDrops = false     };     /**      * Include 3 rules:      * 1. Full name: UserTable      * 2. Start with: Sys*      * 3. End with: *Table      */     opts.FormatTables = new string[] { "Sys*", "Log*", "UserTable", "*Table" }; }); // Or this way //services.AddDbBackup(opts => new DbBackupOptions //{ //    ServerInstance = "127.0.0.1", //    Username = "sa", //    // ..... //}); 

2. In Program.cs(Net6):

builder.Services.AddDbBackup(); 

appsettings.json:

"DbBackupOptions": {     "ServerInstance": "192.168.31.36",     "Username": "sa",     "Password": "sa123.",     "DatabaseName": "PumInfoShop",     "ScriptingOptions": {       "DriAll": false,       "ScriptSchema": true,       "ScriptData": true,       "ScriptDrops": false     },     "FormatTables": []   } 

OR

builder.Services.AddDbBackup(opts => {     opts.ServerInstance = "127.0.0.1";     opts.Username = "sa";     opts.Password = "123456";     opts.DatabaseName = "TestDb";     opts.ScriptingOptions = new ScriptingOptions     {         DriAll = true,         ScriptSchema = true,         ScriptData = true,         ScriptDrops = false     };     /**      * Include 3 rules:      * 1. Full name: UserTable      * 2. Start with: Sys*      * 3. End with: *Table      */     opts.FormatTables = new string[] { "Sys*", "Log*", "UserTable", "*Table" }; });  // Or this way //builder.Services.AddDbBackup(opts => new DbBackupOptions //{ //    ServerInstance = "127.0.0.1", //    Username = "sa", //    // ..... //}); 

使用方法

[HttpGet] public async Task<ActionResult> StartDbBackup() {     var rootPath = "D:/";     var fileName = DateTime.Now.ToString("yyyyMMddhhmmss"); // No ".sql" suffix is required.     var (path, size) = await DbBackupExtensions.StartBackupAsync(rootPath, fileName);// path is full path      return Ok(new     {         Path = path,         Size = size     }); }  [HttpGet] public async Task<ActionResult> DeleteDbBackup(string filePath) {     var (res, msg) = await DbBackupExtensions.DeleteBackup(filePath);      if (res)     {         return Ok(msg);     }     else     {         return NotFound(msg);     } }