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Helper I
Helper I

Formula.Firewall Error using CSV string in (step 'Source').

ErrorMessage: Query 'Query1' (step 'Source') references other queries or steps, so it may not directly access a data source. Please rebuild this data combination.

 

DataSource Settings:

1) "Database connection is set to PUBLIC."

2) "CSV connection is set to PUBLIC."

 

DataSources Being used:

1) SQL Server database query. (Query1)

2) CSV File converted to a String. (Query1List)

 

We Have 2 queries:

Query1 (This Query is the SQL database connection which is using the Query1List data from the CSV.)

PowerBIQuery1.png

 

PowerBIQuery1_Error.png
Query1List (This Query is just just converting the CSV data into a consumable string.)

PowerBIQuery1list.PNG

 

I must resolve this firewall error in order to propperly schedule a refresh window for this data.
How can I allow for the use of 2 data sources within the "Source" step of Query1?

I've read the blog posts telling me to seperate the two queries. It's impossible to execute "Query1" without the IN CLAUSE. 

 

If you need more context just ask.

1 ACCEPTED SOLUTION

Accepted Solutions
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Community Support
Community Support

Re: Formula.Firewall Error using CSV string in (step 'Source').

Hi @cshepler,

How about add custom steps to get data from CSV file and invoke SQL connector in same query table?

For example:

let
	list=Csv.Document(File.Contents("xxxxxxxx")),
	merge="'"& Text.Combine(list,"','")&"'",
	Source=Sql.Database("xxxxxxx","xxxx",[Query="select xxx from xxx where code in ("&merge&")")
in
	Source

Notice: please setting 'data privacy' to 'public' to prevent the error of cross source invoke.

Regards,

Xiaoxin Sheng

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

View solution in original post

4 REPLIES 4
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Super User IV
Super User IV

Re: Formula.Firewall Error using CSV string in (step 'Source').

@csheplercreate a separate list for CSV and then use that list in your SQL query, read this post if it helps.

 

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Did I answer your question? Mark my post as a solution.

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Highlighted
Helper I
Helper I

Re: Formula.Firewall Error using CSV string in (step 'Source').

@parry2k 

 

I took your advice and still get the same message. 

See Below, 

 

Query #1:

We start with "csvTestCodes". (This query is just the Table returned from the .csv file.)

PowerBI_csvTestCodes.png

 

 

Query #2:

We move to "listTestCodes" second. (This query we are converting, csvTestCodes into a List instead of a Table.)

PowerBI_listTestCodes.PNG

 

Query #3: 

Now that we have a list of Test Codes we convert it to a string with "TestCodesString".

PowerBI_TestCodesString.PNG

 

Query #4

Lastly, we pass the "TestCodesString" into Query1.

PowerBI_Query1_UPDATE.png

 

 

Hopefully you have more advice. I've already read that blog post you attached and it's not working for me unless the steps I've followed above are wrong???

 

Regards

 

 

 

 

 

Highlighted
Community Support
Community Support

Re: Formula.Firewall Error using CSV string in (step 'Source').

Hi @cshepler,

How about add custom steps to get data from CSV file and invoke SQL connector in same query table?

For example:

let
	list=Csv.Document(File.Contents("xxxxxxxx")),
	merge="'"& Text.Combine(list,"','")&"'",
	Source=Sql.Database("xxxxxxx","xxxx",[Query="select xxx from xxx where code in ("&merge&")")
in
	Source

Notice: please setting 'data privacy' to 'public' to prevent the error of cross source invoke.

Regards,

Xiaoxin Sheng

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

View solution in original post

Highlighted
Helper I
Helper I

Re: Formula.Firewall Error using CSV string in (step 'Source').

@v-shex-msft 

 

Can you please also show me an example of the same thing but using a SQL datasource which returns just 1 database field? 

 

Thanks!!

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