Best practices for importing large CSV files

Question

My company gets a set of CSV files full of bank account info each month that I need to import into a database. Some of these files can be pretty big. For example, one is abo

Answer 1

I am reading a CSV file which has close to 1M records and 65 columns. Each 1000 record processed in PHP, there is one big fat MySQL statement that goes into the database. The writing takes no time at all. It's the parsing that does. The memory used to process this uncompressed 600MB file is about 12 MB.