Showing results for 
Search instead for 
Did you mean: 
Helper III
Helper III

how to AUTO Populate Fields using with Oracle DB/With Out Database.

Can anyone tell me how to create APP using Oracle DB and Fetch data from Oracle DB Tables and Also Auto Populate the data

(For Example : If user selects Supplier name rest of All Supplier fields should be auto Populated. how to accomplish this. Is there any possibility of Writing queries  to fetch the data and Auto populate in Fields based on Selected supplier.


Request you to please propose your thoughts in how many ways we can AUTO Population by using Oracle Database and also Let me know the possible ways with out using Database (We are running on Oracle Applications R12 On-Premise) .So we have only possibility for Oracle DB 





Most Valuable Professional
Most Valuable Professional



Your first step is to get Oracle DB as a data source in your PowerApp.

Use these instructions for using Oracle DB with PowerApps


For remaining query:


@LohithaSannathi wrote:

For Example : If user selects Supplier name rest of All Supplier fields should be auto Populated. how to accomplish this. Is there any possibility of Writing queries  to fetch the data and Auto populate in Fields based on Selected supplier.



Regarding the above you can do this by using a combination of Formulas and Variables in PowerApps.


Initialize a variable: On App Start and OnVisible of your first screen, use 



to initialize a variable.


You can use the "Default" property in each Control for AutoPopulation - just change the Default property of a control to the name of a variable you initialized, which is almost any variable name of your choice.


On your Dropdown control, use OnChange to make something happen when the value is changed. This is where you might change your Variable(s) value(s) using something along the lines of the below pseudo-formula for OnChange:


If(NameOfSomeRelevantControlAnyhwerInTheApp.UseCorrectRelevantPropertySuchAsSelected.UseCorrectRelevantPropertyIfApplicableSuchAsValue = "Some Text Value 1",Set(AlmostAnyVariableNameOfYourChoice,SomeNewValue);Set(SomeOtherVariable,SomeOtherValue),SomeOtherSimilarIfConditionForTheElsePartThatCanEvenHaveMoreConditionsNestedWithinItIfNeededInSimilarWay)


So then these changes will be picked up by the Variable and would then be auto-populated in all the Controls due to the Default property of the Controls being set to the appropriate variables.


So we recommend you focus on the data source part first, you are using on-premises Oracle so it is tricky, you'll need to set up a gateway and do initial setup to use PowerApps with Oracle on-premises.


Most Valuable Professional
Most Valuable Professional



@LohithaSannathi wrote:

Let me know the possible ways with out using Database (We are running on Oracle Applications R12 On-Premise) .So we have only possibility for Oracle DB 


You can use Common Data Service which is a database that is included as part of Power Platform and recommended for most PowerApps. The database lives inside your Microsoft tenant and inside the specific environment. It is a special database and it is easier to use. It can be used immediately with PowerApps with no additional setup in most cases.


If you must move your Oracle data to Common Data Service, you can consider using something like Dataflow or also, Data Import ( to model the data and move the data over from Oracle to Common Data Service - however the caveat here with that, is you would need to still involve the gateway and some of the steps we described in our first reply, as well as more steps. 


To Model the data from scratch yourself, go to then go to Solutions - make a new solution - begin making entities and relationships.


To see existing system Entities and examples go to -> Entities -> Data and take a look around there.

Most Valuable Professional
Most Valuable Professional



Finally, you can use no data source at all and just initialize a Collection in PowerApps to completely avoid a database and you can try the autopopulation like that.


However, the data cannot be persisted if you have no data source.


Technically there is at least one more way to persist data without database we know of.  SaveData - but that saves it to the device, it has limits, and is not intended for heavy usage, and it persists to the individual device's storage, not a shared database storage that others can access. SaveData is not intended to be substituted for a data storage layer. The recommended data storage layer and data source to be used with PowerApps is Common Data Service.



Thank you so much for your quick response.


Can you please suggest which is best fit for achieving Auto population ( which is also not more Tricky).

Is it using with Oracle DB / Without Using Oracle DB ? Please let me know your thoughts (Im newbie to PowerAPPS/Flow/Sharepoint)


Im aware of installing on-premise gateway for connecting to oracle DB. This is in-progress. 

im trying to install on-premise gateway in Server(where this is will running 24/7).






The approach would be about the same either way for either Oracle or Common Data Service. The approach posted in previous replies from us would be same for either data source. PowerApps abstracts away the implementation details of the data source, to increase productivity. So the formulas are supposed to be identical, you are supposed to ideally be able to swap the data source out and keep everything else the same.


Please note the following: some operations are non-delegable on the connectors i.e. limits on how many values can be returned. If you run into this issue and there is no possible workaround, you may need to remodel the data as Common Data Service.  Also, the PowerApps engine is currently not ready to swap out the data source that easily without at least some minor rewriting - at minimum, the data source name may need to be changed in every formula it was used. This caveat is about the only thing here that may prevent the "ideal world" of just swapping out the data source with no change to the actual App itself. Also, some operations are not logically possible on one type of data source compared to another.  This would be real-world stuff that is logical and may need to be done even in an ideal world.


Off top of our head we are unsure which are delegable or not in Oracle compared to Common Data Service. Delegable issue comes into effect if you want to use Filters (e.g. on Gallery, etc.).


We recommend you just try it with Oracle directly first (once you get it set up) and see how it feels.


Assuming the connectors were identical, there would NOT be one that's "trickier" than the other to accomplish. Autopopulation probably wouldn't be where the trick is. It might be how many records your app can "see" from PowerApps (default - 500 max, hard max is 2000 - this is how many records max at random it can see for non-delegable - not good for production). We do not know off top of our head what caveats the Oracle connector has if you do lots of use of Filter on it, though we suspect it will work fine.


If any of the above runs into issues, the easiest way then would be in Common Data Service instead. If the above is not an issue, then it would be the same either way, Oracle or Common Data Service.


Example off top of our head - For SharePoint List, a Choice field cannot be delegated to a Filter (the Filter function is how you get records onto the system narrowed by criteria) - the field must be changed to something else for it to not be impacted by the delegation limit. We do not know off top of our head now any such equivalent for Oracle (if any exist). We think you may be able to use Oracle fine in your case.




I have to Auto populate into 8 or 9 fields based on Supplier number. do u have any link/Test case/Tutorial to achieve this.

I will use Oracle as suggested in below post


Can you please share .






If user selects Supplier name rest of All Supplier fields should be auto Populated. how to accomplish this. Is there any possibility of Writing queries  to fetch the data and Auto populate in Fields based on Selected supplier.


For above scenario 


The steps you mentioned Initialize a variable is also required to AUTO Populate even if im using Oracle Database Connection.Can you please confirm




Helpful resources


Celebrating the May Super User of the Month: Laurens Martens

  @LaurensM  is an exceptional contributor to the Power Platform Community. Super Users like Laurens inspire others through their example, encouragement, and active participation. We are excited to celebrated Laurens as our Super User of the Month for May 2024.   Consistent Engagement:  He consistently engages with the community by answering forum questions, sharing insights, and providing solutions. Laurens dedication helps other users find answers and overcome challenges.   Community Expertise: As a Super User, Laurens plays a crucial role in maintaining a knowledge sharing environment. Always ensuring a positive experience for everyone.   Leadership: He shares valuable insights on community growth, engagement, and future trends. Their contributions help shape the Power Platform Community.   Congratulations, Laurens Martens, for your outstanding work! Keep inspiring others and making a difference in the community!   Keep up the fantastic work!        

Check out the Copilot Studio Cookbook today!

We are excited to announce our new Copilot Cookbook Gallery in the Copilot Studio Community. We can't wait for you to share your expertise and your experience!    Join us for an amazing opportunity where you'll be one of the first to contribute to the Copilot Cookbook—your ultimate guide to mastering Microsoft Copilot. Whether you're seeking inspiration or grappling with a challenge while crafting apps, you probably already know that Copilot Cookbook is your reliable assistant, offering a wealth of tips and tricks at your fingertips--and we want you to add your expertise. What can you "cook" up?   Click this link to get started:   Don't miss out on this exclusive opportunity to be one of the first in the Community to share your app creation journey with Copilot. We'll be announcing a Cookbook Challenge very soon and want to make sure you one of the first "cooks" in the kitchen.   Don't miss your moment--start submitting in the Copilot Cookbook Gallery today!     Thank you,  Engagement Team

Announcing Power Apps Copilot Cookbook Gallery

We are excited to share that the all-new Copilot Cookbook Gallery for Power Apps is now available in the Power Apps Community, full of tips and tricks on how to best use Microsoft Copilot as you develop and create in Power Apps. The new Copilot Cookbook is your go-to resource when you need inspiration--or when you're stuck--and aren't sure how to best partner with Copilot while creating apps.   Whether you're looking for the best prompts or just want to know about responsible AI use, visit Copilot Cookbook for regular updates you can rely on--while also serving up some of your greatest tips and tricks for the Community. Check Out the new Copilot Cookbook for Power Apps today: Copilot Cookbook - Power Platform Community.  We can't wait to see what you "cook" up!      

Tuesday Tip | How to Report Spam in Our Community

It's time for another TUESDAY TIPS, your weekly connection with the most insightful tips and tricks that empower both newcomers and veterans in the Power Platform Community! Every Tuesday, we bring you a curated selection of the finest advice, distilled from the resources and tools in the Community. Whether you’re a seasoned member or just getting started, Tuesday Tips are the perfect compass guiding you across the dynamic landscape of the Power Platform Community.   As our community family expands each week, we revisit our essential tools, tips, and tricks to ensure you’re well-versed in the community’s pulse. Keep an eye on the News & Announcements for your weekly Tuesday Tips—you never know what you may learn!   Today's Tip: How to Report Spam in Our Community We strive to maintain a professional and helpful community, and part of that effort involves keeping our platform free of spam. If you encounter a post that you believe is spam, please follow these steps to report it: Locate the Post: Find the post in question within the community.Kebab Menu: Click on the "Kebab" menu | 3 Dots, on the top right of the post.Report Inappropriate Content: Select "Report Inappropriate Content" from the menu.Submit Report: Fill out any necessary details on the form and submit your report.   Our community team will review the report and take appropriate action to ensure our community remains a valuable resource for everyone.   Thank you for helping us keep the community clean and useful!

Community Roundup: A Look Back at Our Last 10 Tuesday Tips

As we continue to grow and learn together, it's important to reflect on the valuable insights we've shared. For today's #TuesdayTip, we're excited to take a moment to look back at the last 10 tips we've shared in case you missed any or want to revisit them. Thanks for your incredible support for this series--we're so glad it was able to help so many of you navigate your community experience!   Getting Started in the Community An overview of everything you need to know about navigating the community on one page!  Community Links: ○ Power Apps ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Community Ranks and YOU Have you ever wondered how your fellow community members ascend the ranks within our community? We explain everything about ranks and how to achieve points so you can climb up in the rankings! Community Links: ○ Power Apps ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Powering Up Your Community Profile Your Community User Profile is how the Community knows you--so it's essential that it works the way you need it to! From changing your username to updating contact information, this Knowledge Base Article is your best resource for powering up your profile. Community Links: ○ Power Apps ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Community Blogs--A Great Place to Start There's so much you'll discover in the Community Blogs, and we hope you'll check them out today!  Community Links: ○ Power Apps ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Unlocking Community Achievements and Earning Badges Across the Communities, you'll see badges on users profile that recognize and reward their engagement and contributions. Check out some details on Community badges--and find out more in the detailed link at the end of the article! Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Blogging in the Community Interested in blogging? Everything you need to know on writing blogs in our four communities! Get started blogging across the Power Platform communities today! Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Subscriptions & Notifications We don't want you to miss a thing in the community! Read all about how to subscribe to sections of our forums and how to setup your notifications! Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Getting Started with Private Messages & Macros Do you want to enhance your communication in the Community and streamline your interactions? One of the best ways to do this is to ensure you are using Private Messaging--and the ever-handy macros that are available to you as a Community member! Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Community User Groups Learn everything about being part of, starting, or leading a User Group in the Power Platform Community. Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Update Your Community Profile Today! Keep your community profile up to date which is essential for staying connected and engaged with the community. Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Thank you for being an integral part of our journey.   Here's to many more Tuesday Tips as we pave the way for a brighter, more connected future! As always, watch the News & Announcements for the next set of tips, coming soon!

Hear what's next for the Power Up Program

Hear from Principal Program Manager, Dimpi Gandhi, to discover the latest enhancements to the Microsoft #PowerUpProgram, including a new accelerated video-based curriculum crafted with the expertise of Microsoft MVPs, Rory Neary and Charlie Phipps-Bennett. If you’d like to hear what’s coming next, click the link below to sign up today!  

Top Solution Authors
Top Kudoed Authors
Users online (3,878)