包含指向本地文件的链接的列的数据库模式

I need a database that can contain a person's name, sex, IdNum and photograph. The first three parameters are very easy but the third one: photograph, is a bit challenging for me. I want a command such that it can store a link to wherever the photograph is on the user's file system instead of using the BLOB data type. I just need advice on how best to do this. Think of a form where the user has to enter his/her IdNum and all other information is displayed on the screen. Their name, sex, IdNum and photograph. Something along that line.I need a database that can contain a person's n