小编Tod*_*don的帖子

我一直坐在这里一个小时试图解决这个问题......

我有2个表(缩写):

CREATE TABLE TRUST 
(
TRUSTID NUMBER NOT NULL,
ACCTNBR VARCHAR(25) NOT NULL
)
CONSTRAINT TRUST_PK PRIMARY KEY (TRUSTID)

CREATE TABLE ACCOUNTHISTORY
(
ID NUMBER NOT NULL,
ACCOUNTNUMBER VARCHAR(25) NOT NULL,
TRANSAMT NUMBER(38,2) NOT NULL
POSTINGDATE DATE NOT NULL
)
CONSTRAINT ACCOUNTHISTORY_PK PRIMARY KEY (ID)

我有2个类基本上反映了这些:

public class Trust
{
    public virtual int Id {get; set;}
    public virtual string AccountNumber { get; set; }

}

public class AccountHistory
{
    public virtual int Id { get; set; }
    public virtual …