public DBUpdateQuery AndWhere(DBClause left, Compare op, DBClause right)
{
_where = _where.And(left, op, right);
_last = _where;
return(this);
}
/// <summary>
/// Creates a futher where clause in this DBDeleteQuery using the left and right
/// clauses as operands in the comparison. Then combines with the previous filter in a boolean AND operation
/// </summary>
/// <param name="left">The left operand</param>
/// <param name="op">The comparison type - Equals etc...</param>
/// <param name="right">The right operand</param>
/// <returns>Itself so further statements can be chained</returns>
public DBDeleteQuery AndWhere(DBClause left, Compare op, DBClause right)
{
if (null == _where)
{
throw new NullReferenceException(Errors.CannotAppendWhereClauseWithoutInitial);
}
_where = _where.And(left, op, right);
_last = _where;
return(this);
}