public int GetNumOfOpenConnection(string dbName)
{
int outVal = 0;
lock (_dbConnection)
{
if (!_dbConnection.IsDisposed)
{
string sqlCommandStr = _dBScriptsProvider.GetNumOfOpenConnectionScript(dbName);
using (DataTable resultsTable = _dbConnection.GetSelectCommand(sqlCommandStr, 10))
{
if (resultsTable.Rows.Count > 0)
{
DataRow statusRow = resultsTable.Rows[0];
outVal = Convert.ToInt32(statusRow["NumberOfConnections"], CultureInfo.InvariantCulture);
}
}
}
}
return(outVal);
}
public DataSet GetScriptsExecutionHistoryTableStructureFromDB()
{
DataSet dsExecutionHistory = new DataSet();
string sqlCmdStr = _dBScriptsProvider.GetEmptyTableScript(DBCommandsConsts.DBScriptsExecutionHistoryFullTableName);
DataTable dbScriptsExecutionHistoryTable = _dbConnection.GetSelectCommand(sqlCmdStr);
dbScriptsExecutionHistoryTable.TableName = DBCommandsConsts.DBScriptsExecutionHistoryFullTableName;
dsExecutionHistory.Tables.Add(dbScriptsExecutionHistoryTable);
sqlCmdStr = _dBScriptsProvider.GetEmptyTableScript(DBCommandsConsts.DBScriptsExecutionHistoryFilesFullTableName);
DataTable dbScriptsExecutionHistoryFilesTable = _dbConnection.GetSelectCommand(sqlCmdStr);
dbScriptsExecutionHistoryFilesTable.TableName = DBCommandsConsts.DBScriptsExecutionHistoryFilesFullTableName;
dsExecutionHistory.Tables.Add(dbScriptsExecutionHistoryFilesTable);
return(dsExecutionHistory);
}
private void ResolveDBInSingleUserMode(string dbName, string dbFilesBasePath)
{
bool isDBInSigleUserMode = false;
string sqlCommandStr = _dBScriptsProvider.GetDBAccessStateScript(dbName);
using (DataTable dbStateTable = _dbConnection.GetSelectCommand(sqlCommandStr))
{
isDBInSigleUserMode = dbStateTable.Rows.Count > 0;
}
if (isDBInSigleUserMode)
{
sqlCommandStr = _dBScriptsProvider.GetDBSessionsScript(dbName);
using (DataTable sessionsTable = _dbConnection.GetSelectCommand(sqlCommandStr))
{
foreach (DataRow rowSession in sessionsTable.Rows)
{
int seesionID = Convert.ToInt32(rowSession["SessionID"], CultureInfo.InvariantCulture);
sqlCommandStr = _dBScriptsProvider.KillSessionScript(seesionID.ToString(CultureInfo.InvariantCulture));
_dbConnection.ExecSQLCommandStr(sqlCommandStr);
}
}
//Comment: we prefer to drop db and create again becauase if the db stuck on restore state we couldnt change it to MULTI_USER
//sqlCmdStr2 = $"ALTER DATABASE [{dbName}] SET MULTI_USER ";
//_sqlServerConnectionManager.ExecSQLCommandStr(sqlCmdStr2);
DropDB(dbName);
CreateDB(dbName, dbFilesBasePath);
}
else
{
sqlCommandStr = _dBScriptsProvider.GetIsDBExsitScript(dbName);
using (DataTable dtIsDBExsit = _dbConnection.GetSelectCommand(sqlCommandStr))
{
if (dtIsDBExsit.Rows.Count == 0)
{
//sqlCmdStr2 = @"DECLARE @dataFilePath NVARCHAR(MAX) = CAST(SERVERPROPERTY('InstanceDefaultDataPath') AS NVARCHAR) + FORMATMESSAGE('\%s.mdf', 'MASTER'); SELECT @dataFilePath ;";
//DataTable DT = _sqlServerConnectionManager.GetSelectCommand(sqlCmdStr2);
if (!string.IsNullOrWhiteSpace(dbFilesBasePath))
{
string mdfFilePath = Path.Combine(dbFilesBasePath, $"{dbName}.mdf");
if (File.Exists(mdfFilePath))
{
File.Delete(mdfFilePath);
}
string ldfFilePath = Path.Combine(dbFilesBasePath, $"{dbName}.ldf");
if (File.Exists(ldfFilePath))
{
File.Delete(ldfFilePath);
}
}
CreateDB(dbName, dbFilesBasePath);
}
}
}
}
