Photos Single Photos PictureCode System.String true false 20 PictrueName System.String false true 50 PictureSize System.Int32 false true 4 PicContent System.Byte[] false true 2147483647 Select select PictureCode, PictrueName, PictureSize, PicContent from Photos where PictureCode=@PictureCode Text @PictureCode PictureCode VarChar SelectAll select PictureCode, PictrueName, PictureSize, PicContent from Photos Text Insert Insert into Photos ( PictureCode, PictrueName, PictureSize, PicContent ) values ( @PictureCode, @PictrueName, @PictureSize, @PicContent ) Text @PictureCode PictureCode VarChar @PictrueName PictrueName VarChar @PictureSize PictureSize Int @PicContent PicContent Image Update Update Photos set PictrueName=@PictrueName,PictureSize=@PictureSize,PicContent=@PicContent where PictureCode=@PictureCode Text @PictureCode PictureCode VarChar @PictrueName PictrueName VarChar @PictureSize PictureSize Int @PicContent PicContent Image Delete Delete from Photos where PictureCode=@PictureCode Text @PictureCode PictureCode VarChar