Add rj_na_date
Use ISO 8601 date format
Use strftime
Use rj_na_date
Add rj_na_godzine
Use rj_na_godzine
Move rj_na_godzine above determine_quarter
Use rj_na_godzine
Use sample_key from database
Use list of samples
Add get_row_of_samples
Use rj_na_date
Add get_row_key
Add lxa_21_inst
Add lxa_22_inst
Add ptn_update_vector_of_samples
Check ptn_update_vector_of_samples
Add dq_update_vector_of_samples
Add store_rows_in_db
Use store_rows_in_db