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Sairam_pera
Helper III
Helper III

LookUP

Hi all 
While Iam using LookUp Getting Slowness in the app So In place of LookUp Is any function is there work like as a LookUp If any knows Please advise me


Thanks in advance

10 REPLIES 10
VauBee
Skilled Sharer
Skilled Sharer

Hi @Sairam_pera  would be good to have your actual code. 

Maybe this already helps Filter, Search, and LookUp functions in Power Apps (contains video) - Power Platform | Microsoft Lea...

 

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Rajkumar_404
Super User
Super User

Hi @Sairam_pera 

 

You can use Filter() function alternative for LookUp function.

 

Refer link : PowerApps LookUp vs Filter vs Search Functions by Examples (zeitgeistcode.com)

 

Thanks!

 

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LookUp(PatientDocuments, CaseId=Lcase And DocumentCode=Attachments[@Code]).DateOfUpload For this Code Could you Please Give by using Search Function

Thanks in advance

Hi @Sairam_pera 

 

You can use the Filter() function to find the record that satisfies the given conditions.

 

First(
Filter(
PatientDocuments,
CaseId = Lcase && DocumentCode = Attachments[@Code]
)
).DateOfUpload

 

Thanks!

 

If my response has been helpful in resolving your issue, I kindly request that you consider clicking "Accept as solution" and "giving it a thumbs up" as a token of appreciation.

Yes, I used this before Getting Performance Issue for this code also, That's why Iam asking with Search

Thank you


timl
Super User
Super User

@Sairam_pera 

IMO, Search and Filter will not provide any performance benefit over LookUp.

Filter and Search return multiple records whereas LookUp is specifically designed to return a single record. Therefore, LookUp will be the more performant of all these functions.

 

Also, if you're using SharePoint, Search is not delegable. Therefore, Search will not return the correct record if the data source contains more than 2000 rows.

 

The typical reason for slow performance is that the data source contains many columns which will slow down data retrival.

 

If you're using SharePoint or SQL, you can try indexing the DocumentCode and CaseId columns. That might help to improve the retrival time from within the data source.

Sairam_pera
Helper III
Helper III

Yes, I am using SQL and also I given indexes for those two columns
OnVisible:
ClearCollect(CombinedData,
AddColumns(
Attachments,
"DateOfUpload", LookUp(PatientDocuments, CaseId=Lcase And DocumentCode=Attachments[@Code]).DateOfUpload,
"DocumentStatus",LookUp(PatientDocuments, CaseId=Lcase And DocumentCode=Attachments[@Code]).DocumenStatus
)
)
So takes time to display Data

Thanks in advance

 

timl
Super User
Super User

@Sairam_pera 

The problem here isn't the call the LookUp - it's because you're calling it twice for each row in Attachments. So if the Attachments table contains 100 rows, that will result in 200 calls to Lookup on the PatientDocuments table.

 

The only way to resolve this to not to call LookUp, but to instead create a view in SQL Server that joins the Attachments and PatientDocuments tables. If you then connect to this view from Power Apps, that will resolve the performance problem.

Sairam_pera
Helper III
Helper III

Based on Caseid CombinedData as Shown if caseid was Changed then CombinedData has Changed So is it Possible in View

thanks

 

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