/// <summary>
/// 设置指定查询的语句并返回当前语句
/// </summary>
/// <typeparam name="T">实体类类型</typeparam>
/// <param name="cmd">选择语句</param>
/// <param name="expr">Linq表达式</param>
/// <exception cref="LinqNotSupportedException">Linq操作不支持</exception>
/// <returns>当前语句</returns>
public static SelectCommand Having <T>(this SelectCommand cmd, Expression <Func <T, Boolean> > expr)
{
return(cmd.Having(SqlLinqCondition.Create <T>(cmd, expr)));
}
