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