private void CreateCommand(JoinType type, string table, string first, Condition condition, string second)
{
var typeName = type.GetDescription();
var tableName = Helper.TableName(table);
var firstName = Helper.ColumnName(first);
var secondName = Helper.ColumnName(second);
JoinCommand = $"{typeName} {tableName} ON {firstName} {condition.GetDescription()} {secondName}";
}