Sequence in Oracle executed by EF call

Source: Internet
Author: User

Recently, the Entity Framework 4.1 and LINQ frameworks were used for development. However, the primary key values in the Oracle data table use sequence generation auto-increment values, when adding a record, you must query and obtain the Sequence Value of the current table.

Query sequence method:

View code

 Public  Decimal getproblemxh () {decimal maxxh = 90000000  ;  Using (Modulezjkentities entity = New  Modulezjkentities () {string strdbtype = (System. Data. entityclient. entityconnection) (entity. Connection). storeconnection. tostring (); If (Entity! = Null  ){  String  Strseqidquerysql;  If (Strdbtype = "  System. Data. sqlclient. sqlconnection  "  ) {Strseqidquerysql = "  Insert into dual (newdate) values (getdate () Select @ identity  " ;}  Else  {Strseqidquerysql = "  Select sqe_zj_fywt.nextval from dual  "  ;} Decimal decseqid = Entity. executestorequery <decimal> (Strseqidquerysql). First (); maxxh = Decseqid ;}}  Return  Maxxh ;} 

 

In the next step, we will study how to call the stored procedure. If you have any good methods, we hope to share them with you ~~~

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