[英]C# Express Edition + SQL Server 2008 R2 Express; Database file being recreated on run
[英]Drop Database SQL Server 2008 R2 Express Edition - Exception
我正在使用C#解決方案,可以在SQL Server 2008 R2 Express Edition中刪除數據庫。 我搜索了WWW,找到了以下解決方案: 殺死所有與數據庫的連接的腳本(比RESTRICTED_USER ROLLBACK還要多)
我還嘗試從SQL Server創建腳本:
EXEC msdb.dbo.sp_delete_database_backuphistory @database_name = N'apm4reform'
GO
USE [master]
GO
ALTER DATABASE [apm4reform] SET SINGLE_USER WITH ROLLBACK IMMEDIATE
GO
USE [master]
GO
/****** Object: Database [apm4reform] Script Date: 10/10/2013 00:58:06 ******/
DROP DATABASE [apm4reform]
GO
這是我使用的代碼:
private static bool DropDatabase(SqlConnection tmpConn, string connectionString, string databaseName)
{
string sqlDropDBQuery;
bool result = false;
try
{
tmpConn.ConnectionString = connectionString;
tmpConn.Open();
SqlCommand thisCommand = new SqlCommand();
thisCommand.Connection = tmpConn;
sqlDropDBQuery = string.Format("EXEC msdb.dbo.sp_delete_database_backuphistory @database_name = N'{0}'\n GO\n USE [master]\n GO\n ALTER DATABASE [{0}] SET SINGLE_USER WITH ROLLBACK IMMEDIATE GO\n USE [master]\n GO\n DROP DATABASE [{0}]\n GO\n", databaseName);
thisCommand.CommandText = sqlDropDBQuery;
thisCommand.ExecuteNonQuery();
result = true;
}
catch (Exception ex)
{
result = false;
}
finally
{
tmpConn.Close();
}
return result;
}
不幸的是,我總是會遇到一個例外:
'GO'附近的語法不正確。 'GO'附近的語法不正確。 'GO'附近的語法不正確。
我也嘗試了沒有逃脫\\ n!
有什么建議么?
謝謝,tro
GO是僅由Sql Server Management Studio無法理解的語句分隔符。
C#代碼無法通過ExecuteNonQuery在語句中使用它。 只需將其刪除,並確保每個語句都以分號終止
sqlDropDBQuery = string.Format("EXEC msdb.dbo.sp_delete_database_backuphistory " +
"@database_name = N'{0}';USE [master];" +
"ALTER DATABASE [{0}] SET SINGLE_USER WITH ROLLBACK IMMEDIATE;" +
"USE [master];DROP DATABASE [{0}];", databaseName);
你可以試試看 一
var s =string. Format( @"EXEC msdb.dbo.sp_delete_database_backuphistory @database_name = N'{0}';
USE master;
ALTER DATABASE {0} SET SINGLE_USER WITH ROLLBACK IMMEDIATE
DROP DATABASE {0}",yourdbname);
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