This function retrieves data by performing a series of INNER JOIN operations across multiple tables in the database,
including lab_measurement, analyte, lab_sample, lab_field_sample, field_sample, sites, and species.
The result is a combined dataset containing related information from all these tables.
get_db(con = NULL)
get_db(con = NULL)A lazy data frame (tibble) representing the joined data. The query is not executed until explicitly requested by the user (e.g., with dplyr::collect()).