/// <summary>
/// 返回一个Query节
/// </summary>
/// <typeparam name="T"></typeparam>
/// <returns></returns>
public QuerySection <T> From <T>(TableRelation <T> relation)
where T : Entity
{
return(dbTrans.From <T>(relation));
}
/// <summary>
/// 返回一个From节
/// </summary>
/// <typeparam name="T"></typeparam>
/// <returns></returns>
public FromSection <T> From <T>()
where T : Entity
{
return(dbTrans.From <T>());
}