摘要： 在Entity Framework中，从数据库生成模型，视图常报无主键。解决办法：为试图添加主键/复合主键create or replace view view_activebudgetamount (activeid,budgetactiveid,flowid,applyyear,activestage,budgettype,amount,constraint view_activebudgetamount_pk primary key (activeid,flowid) rely disable novalidate)as select a.activeid,a.activeid as b 阅读全文