Web content data extraction functions

Isn't it better/optimized to call the function in a new table for every new request made instead adding it to the main table and having it repeat all the previous data inside the table just to relate to the new data inserted? If it is definitly better, please let me know how to do it.

Power Query – Building functions to fetch web data

Example:

main_table

A | B | C |

C | A | B |

B | C | A |

>function to made web crawling with data of main_table as illustred in the link before.

main_table

A | B | C | 1

A | B | C | 2

C | A | B | 1

C | A | B | 2

B | C | A | 1

B | C | A | 2