>I want to query or seek a record number, that has a unique characteristic...
>
>For example in a car dealer, I want to search or find a specific car that has a red color.
>
>In the table I have a lot of record numers, but I categorize them by four different types. If someone could provide me some code in wich I could do a search. in wich I could find a record number of "some" type. Record numbers dont repeat themselves, only if they are different types.

Juan,

Your request needs more info. What are the different types and how do they relate to the ID numbers? What kind of indexing do you have? A compound index on Record ID + Type? Or separate tags for each?

Be a little more descriptive and we'll try to help you come up with a good quey.