Home/ Questions/Q 7611093
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-31T01:34:49+00:00

i’m a little bit stuck with deciding what db structure is the best for

  • 0

i’m a little bit stuck with deciding what db structure is the best for performance for me..

i have two tables:

Catalogue          Items
ID | Descr        I_ID | Descr

in both tables all rows are UNIQUE

in relations terms a records from Catalogue can have several records from Items, but there are records that won’t have any Items

Items can have several relations to Catalogue, but not necessarily every item will have relation to a Catalogue.

Fact1 – there are 7 times more records in Items than in Catalogue

Fact2 – so if there is a relationship between Catalogue and Items – it will be equaly from both tables

what’s my best option to relate them?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Make a third table, called catalogue_items. In the table catalogue_items have to columns:

    1. ID –> Referencing Catalogue ID
    2. I_ID –> Referencing item ID

    Make a new record for each time the two are related in some way.

    I believe this is what you were asking for in your follow up question:

    "Select * from catalogue_items where Catalogue.ID = catalogue_items.ID"
    • 0