public void GetTotalRows(MySqlCommand cmd, GetTotalRowsMethod enumGetTotalRowsMode)
{
if (enumGetTotalRowsMode == GetTotalRowsMethod.InformationSchema)
{
DataTable dtTotalRows = QueryExpress.GetTable(cmd, string.Format("SELECT TABLE_NAME, TABLE_ROWS FROM `information_schema`.`tables` WHERE `table_schema` = '{0}';", _name));
int _tableCountTotalRow = 0;
foreach (DataRow dr in dtTotalRows.Rows)
{
string _tbname = dr["TABLE_NAME"] + "";
long _totalRowsThisTable = 0L;
long.TryParse(dr["TABLE_ROWS"] + "", out _totalRowsThisTable);
if (_listTable.Contains(_tbname))
{
_listTable[_tbname].SetTotalRows(_totalRowsThisTable);
}
}
}
else if (enumGetTotalRowsMode == GetTotalRowsMethod.SelectCount)
{
for (int i = 0; i < _listTable.Count; i++)
{
_listTable[i].GetTotalRowsByCounting(cmd);
if (GetTotalRowsProgressChanged != null)
{
GetTotalRowsProgressChanged(this, new GetTotalRowsArgs(_listTable.Count, i + 1));
}
}
}
}
public void GetTotalRows(MySqlCommand cmd, GetTotalRowsMethod enumGetTotalRowsMode)
{
int i = 0;
var timer = new Timer
{
Interval = 10000
};
timer.Elapsed += (sender, e) =>
{
GetTotalRowsProgressChanged?.Invoke(this, new GetTotalRowsArgs(_listTable.Count, i));
};
if (enumGetTotalRowsMode == GetTotalRowsMethod.InformationSchema)
{
DataTable dtTotalRows = QueryExpress.GetTable(cmd, string.Format("SELECT TABLE_NAME, TABLE_ROWS FROM `information_schema`.`tables` WHERE `table_schema` = '{0}';", _name));
timer.Start();
foreach (DataRow dr in dtTotalRows.Rows)
{
i++;
var _tbname = dr["TABLE_NAME"] + "";
long.TryParse(dr["TABLE_ROWS"] + "", out var _totalRowsThisTable);
if (_listTable.Contains(_tbname))
{
_listTable[_tbname].SetTotalRows((long)(_totalRowsThisTable * 1.1)); // Adiciona 10% de erro
}
}
timer.Stop();
GetTotalRowsProgressChanged?.Invoke(this, new GetTotalRowsArgs(_listTable.Count, _listTable.Count));
}
else if (enumGetTotalRowsMode == GetTotalRowsMethod.SelectCount)
{
timer.Start();
foreach (var table in _listTable)
{
i++;
table.GetTotalRowsByCounting(cmd);
}
timer.Stop();
GetTotalRowsProgressChanged?.Invoke(this, new GetTotalRowsArgs(_listTable.Count, _listTable.Count));
}
}
