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JonasH
Level: Powered On

Using SQL key

Hey,

I want to get data from a SQL-table using the foreign key.

The scope is to count the rows of the ONCR.Position with the HeadGUID linked with the CreatedBy column of ONCR.Head.

CountRows(Filter('[ONCR].[Position]', CheckedBy = User().FullName)) + CountRows(PosCache)

Here is a code snippet of the SQL statement to create both of the tables:

create table ONCR.Head(
	CheckedBy nvarchar(255),
	GUID nvarchar(255),
	CONSTRAINT PK_Head PRIMARY KEY (GUID)
);

create table ONCR.Position(
	HeaderGUID nvarchar(64),
	GUID nvarchar(64)
	Constraint PK_Position PRIMARY KEY
CONSTRAINT FK_Head FOREIGN KEY (HeaderGUID) REFERENCES ONCR.Head (GUID) )

Example:
How to get the Name "Marco" by only having the GUID2019-10-14 15_27_25-Unbenannt - Paint.png

To get the ammount of rows I tried stuff like:

CountRows(First(Filter('[ONCR].[Head]', GUID = '[ONCR].[Position]'.HeaderGUID)))

But it doesnt worked.

 

Is there a possibility to get the data? Or should I save the CreatedBy column in ONCR.Position too?

 

Thanks for your help.

1 ACCEPTED SOLUTION

Accepted Solutions
Community Support Team
Community Support Team

Re: Using SQL key

Hi @JonasH ,

Do you want to get the Name "Marco" by only having the GUID?

Try this formula:

LookUp('[ONCR].[Head]', GUID = '[ONCR].[Position]'.HeaderGUID,CheckedBy)

The formula that you use "First(Filter(...))" is used to get the first record that meet the requirments.

So "CountRows(First(..))" will always get the result of "1".

I suggest you try the LookUp function.

The syntax is:

LookUp(tablename,condition,fieldname)

It means that get one field's value of the record that meet the condition(the first one record meet s the condition).

Here's a doc about this function for your reference:

https://docs.microsoft.com/en-us/powerapps/maker/canvas-apps/functions/function-filter-lookup

 

 

 

Best regards,

Community Support Team _ Phoebe Liu
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

View solution in original post

3 REPLIES 3
Community Support Team
Community Support Team

Re: Using SQL key

Hi @JonasH ,

Do you want to get the Name "Marco" by only having the GUID?

Try this formula:

LookUp('[ONCR].[Head]', GUID = '[ONCR].[Position]'.HeaderGUID,CheckedBy)

The formula that you use "First(Filter(...))" is used to get the first record that meet the requirments.

So "CountRows(First(..))" will always get the result of "1".

I suggest you try the LookUp function.

The syntax is:

LookUp(tablename,condition,fieldname)

It means that get one field's value of the record that meet the condition(the first one record meet s the condition).

Here's a doc about this function for your reference:

https://docs.microsoft.com/en-us/powerapps/maker/canvas-apps/functions/function-filter-lookup

 

 

 

Best regards,

Community Support Team _ Phoebe Liu
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

View solution in original post

Administrator
Administrator

Re: Using SQL key

Hi @JonasH how are you progressing with this? Was the above reply helpful?

 

@TopShelf-MSFT 

JonasH
Level: Powered On

Re: Using SQL key

Hey @TopShelf-MSFT ,

The request was very helpful.

 

Have a nice day.

Jonas

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