How to find this keys in a big file (8GB, at least 219 million entries)
Some ‘small’ text files that contain about 500000 entries/rows. Each row has also a ‘key’ column. I need to find this keys in a big file (8GB, at least 219 million entries). When found, I need to append the ‘Value’ from the big file into the small file, at the end of the row as … Continue reading How to find this keys in a big file (8GB, at least 219 million entries)