# Search Cases Using Business Data variable **URL:** \ **Category:** Q&A\ **Created:** [29 July 2020 07:24 UTC](https://community.ofelia.com/t/search-cases-using-business-data-variable/10316 "2020-07-29T07:24:07Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![kalmakhelidze10\_1399](https://avatars.discourse-cdn.com/v4/letter/k/ebca7d/32.png) [@kalmakhelidze10\_1399](https://community.ofelia.com/u/kalmakhelidze10_1399)\ **Post date:** [29 July 2020 07:24 UTC](https://community.ofelia.com/t/search-cases-using-business-data-variable/10316/1 "2020-07-29T07:24:07Z")
Hello evryone. I want to search cases using business data variables. If I have national id number of someone in my process. I would like search case using this id. For example id is 55555, I want to find the case using this 55555.  Thanks in advance. ---
**Author:** ![Pierre-yves\_Monnet](https://avatars.discourse-cdn.com/v4/letter/p/8edcca/32.png) [@Pierre-yves\_Monnet](https://community.ofelia.com/u/Pierre-yves_Monnet)\ **Post date:** [31 July 2020 21:08 UTC](https://community.ofelia.com/t/search-cases-using-business-data-variable/10316/2 "2020-07-31T21:08:46Z")
Hello, If you want to do that, you have to register in your BDM the case ID. By conception, the BDM and the process are independent. A process references a BDM and can manipulate it at a moment, but keep in mind MULTIPLE cases, MULTIPLE processes can register a BDM value. So, by conception, if one case is important for your BDM, you have to create an attribute "myImportantCaseId" in your BDM, and save it when the case creates / modify it. Second solution, the link between the BDM and the case is stored somewhere in the Bonita Engine database (until the case is not deleted), so you may find a SQL to find this relation? Of course, when the case will be deleted, this information will be deleted at the same time. Hope this help,