Small program to compare .txt files
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I have 2 .txt files, they are aproximately 10 Million rows each; they have 15 columns and no headers; each column is separated by the "|" character.
The program in comparin real estate data where column 0 is region, column 1 is city and column 2 is a plt identifier.
I need a program that creates a new column with a key composed of the concatenated info form Col 0, Col 1 and Col 2; and then to compare the keys from both files in order to know which rown exist in file 1 but not file 2. They idea is to recognizer wich prots were eliminated from DB1 to DB2.
You may download the files "DB1" and "DB2", and i need to know wich rows exist in "DB1" but not in "DB2".
The program needs to run fast and take no longer than 2 hrs to comlpete the task. Outout should be excel file with all rows that exist in DB1 and not DB2
DB download: [login to view URL]
Nº du projet : #37476470
À propos du projet
40 freelances font une offre moyenne de 115 $ pour ce travail
I understand that you need a program that compares .txt files to create a new column with information from Col 0, Col 1 and Col 2 that can then be used to compare the keys from both files in order to identify which row Plus
Greetings. I will be able to complete the task in 1 day and I am available to begin immediatley. I have substantial experience with big data searching and indexing tasks so I can say with certainty that I can complete Plus
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