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Anonymous
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Encoding/Decoding Values in SQL

I have been looking at a problem I can't quite get my head around! I'm working on a canvas PowerApp which saves a load of different forms (all are repeating table type galleries) with different numbers of fields etc into a SQL table where the column values in the repeating Gallery are encoded with the headers into a single field e.g. 

 

Door ID|1*|Location|Lobby*|Checked?|true**|Door ID|2*|Location|Hallway*|Checked?|false**|Door ID|3*|Location|Street*|Checked?|true**|

 

So *| separates field value pairs and rows are divided by **| . The purpose of this is to save table space as you don't need one row per line item, it can all be saved in one field and will be well within the limits of a varchar(max)

 

Capture2.PNG

This is all fine for saving and provides an elegant way of saving lots of different forms in one table as opposed to 40 different tables BUT the problem I can't fix is how to rehydrate that data when I need to show the information already captured. 

 

I saw this video which sort of deals with it (https://www.youtube.com/watch?v=sj-UDq8Iuow), but doesn't really answer the question of how you would do this with an unknown number of encoded 'columns', if indeed it is possible.

 

I currently first Split up the rows into a collection with 

ClearCollect(CheckRows,Split(CurrentCheck.Property1,"**|")

 

I connect this up to a gallery. Then in the gallery I use:

Substitute(Substitute(ThisItem.Result,"*|", Char(13)),"|",":")

 

This doesn't look great though and ideally I would be able to display the data in the same format it was entered in with Header Rows and columns of data, but I can't predict how many columns each gallery/table will need. Capture.PNG

 

Has anyone done this or something similar before or should I just create a different table to hold each different kind of check? 

Thanks,

Rob

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Anonymous
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Anyone?

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