Tracked Properties - MySQL Get Rows - Select Query

[eued]

I'm trying to determine if tracking the outputs of my select query is a way to speed up the amount of time it takes to run my flow.

My Outputs are pretty straight-forward but they differ depending on what my tracking attempts are:

[

{

"@odata.etag": "",

"ItemInternalId": "ef9d1984-ccc8-4c45-810d-0a4edc0a37b8",

"id": 1337,

"email": "an@email.address",

"first_name": "some",

"last_name": "person"

}

]

or

{

"@odata.context": "https://mysql-----')/items",

"value": [

{

"@odata.etag": "",

"ItemInternalId": "62e26d3f-29a4-4469-be89-0dd21c4d7724",

"id": 1337,

"email": "an@email.address",

"first_name": "some",

"last_name": "person"

}

]

}

My most common error is "TrackedPropertiesEvaluationFailed." when I try things that look like

"@triggerBody('value').'first_name'"

However, I did get an "Encountered internal server error." when I tried to do something like 

"@parameters('value').email"

This is all being done in the context of an Apply to each.

Any help would be greatly appreciated.

[abm]

Hi @eued 

Could you try using the below expression please?

triggerBody()?['first_name']

[eued]

Thanks @abm 

I tried this at one point and got the following as inputs in the subsequent Compose.

{

"userID": null,

"firstName": null,

"lastName": null,

"emailAddy": null

}

A Peek at the Code View shows something like this:

(encodeURIComponent('[database].[table]'))}/items",

"queries": {

"$filter": "id eq @{items('Apply_to_each_4')?['unique_id']}",

"$select": "id, email, first_name, last_name"

},

"authentication": {

"type": "Raw",

"value": "@json(decodeBase64(triggerOutputs().headers['X-MS-APIM-Tokens']))['$ConnectionKey']"

}

},

"trackedProperties": {

"userID": "@triggerBody()?['id']",

"firstName": "@triggerBody()?['first_name']",

"lastName": "@triggerBody()?['lasnt_name']",

"emailAddy": "@triggerBody()?['email']"

},

I feel like I should be doing something with item() ... is body() even defined at this point in the process? Is what I'm trying to do even possible given the constraints of my querying the database inside of a loop?

[abm]

Hi @eued 

Thanks for your reply. Could you please post a screenshot of your flow?

Thanks

[eued]

@abm 

[abm]

Hi @eued 

Thanks for the screenshot. Your flow look ok to me. Yes you can call database queries from a loop. You did mentioned about some errors. So in which step exactly you are getting these? I am kind of lost here?

[eued]

@abm 

Admittedly, I'm throwing spaghetti on the wall for some of this stuff. I thought it would be super straight forward with triggerBody() but, I was wrong.

I just ran a couple examples of the types of errors I've encountered. 

[eued · Accepted solution]

Reading this article: http://johnliu.net/blog/2018/10/hiding-your-microsoft-flow-valuables-i-mean-variables-out-of-sight

there was this statement that says "Unfortunately, an auction can't reference itself"

I took that and decided to go in another direction, create variables outside the loop and just set them inside the loop within their own loop and thankfully that worked like a charm. The objective of making my flow run faster is sufficiently met, so I'm moving on to the next challenge. 

Thanks @abm for your attention.