OAFileType Single OAFileType OAFileTypeCode System.String true false 50 TypeName System.String false true 50 ParentCode System.String false true 50 Deep System.Int32 false true 4 FullID System.String false true 200 createDate System.DateTime false true 8 Select select * from OAFileType where OAFileTypeCode=@OAFileTypeCode Text @OAFileTypeCode OAFileTypeCode VarChar SelectAll select *,(select count(*) from OAFileType tmp where tmp.ParentCode=OAFileType.OAFileTypeCode) as ChildNodesCount from OAFileType Text Insert Insert into OAFileType ( OAFileTypeCode, TypeName, ParentCode, Deep, FullID, createDate ) values ( @OAFileTypeCode, @TypeName, @ParentCode, @Deep, @FullID, @createDate ) Text @OAFileTypeCode OAFileTypeCode VarChar @TypeName TypeName VarChar @ParentCode ParentCode VarChar @Deep Deep Int @FullID FullID VarChar @createDate createDate DateTime Update Update OAFileType set TypeName=@TypeName,ParentCode=@ParentCode,Deep=@Deep,FullID=@FullID,createDate=@createDate where OAFileTypeCode=@OAFileTypeCode Text @OAFileTypeCode OAFileTypeCode VarChar @TypeName TypeName VarChar @ParentCode ParentCode VarChar @Deep Deep Int @FullID FullID VarChar @createDate createDate DateTime Delete Delete from OAFileType where OAFileTypeCode=@OAFileTypeCode Text @OAFileTypeCode OAFileTypeCode VarChar SelectRuleOAFileTypeByCode select *,(select count(*) from OAFileType where ParentCode=OAFileTypeCode) as ChildNodesCount from OAFileType where OAFileTypeCode=@OAFileTypeCode Text @OAFileTypeCode OAFileTypeCode VarChar