Open File Path & Loop to Read Records & Check If Record Exis

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1

I need to open a file path to import records from csv file into my database using PMI. My data consist of:

Primary Key : Information
1 5.5
2 3.4
3 4.4
ect…

I need some help with the syntax to:
Open File Path
Loop to read Read Record While they Exist
Check to see if primary key already exist, if yes I’ll do an update else insert

Thanks

2

Some of the examples in this post should get you started:
viewtopic.php?f=23&t=2379&start=0&st=0&sk=t&sd=a&hilit=csv