Drop explicit host ports Compose will automatically allocate unassigned ports. These can be looked up e.g. using `docker compose port'. Enables using several "instances" of the application with different project names (`docker compose -p <project name>').

select.abflusstafel = \
    SELECT ABFLUSSTAFEL_NR, \
           ABFLUSSTAFEL_BEZ, \
           GUELTIG_VON, \
           GUELTIG_BIS, \
           PEGELNULLPUNKT, \
           AT.BFG_ID \
    FROM ABFLUSSTAFEL AT \
    WHERE MESSSTELLE_NR LIKE :number