需要澄清cron调度程序

I need clarification about handling cron scheduler in php. I want to insert queries 'n' number of queries into a table within one minute using cron scheduler.

If time exceeds one minute without executing all queries ( ex. i have 2000 insert queries , but it executes only 500 within one minute. Remaining 1700 ), so please suggest me to handle this situation.

Note: This scheduler will execute different 'n' number of queries.