Chciałbym zrobić sobie porcjowanie danych np po 20 wierszy. Tabele mam np taka:
mysql> SELECT * FROM Telefon; +------------+---------------+---------+-----------+ | Id_telefon | Nr_telefonu | Id_prac | Id_rodzaj | +------------+---------------+---------+-----------+ | 1 | +487177771540 | 1 | 1 | | 30 | +48501345689 | 1 | 4 | | 3 | +487177771230 | 19 | 1 | | 4 | +487177771231 | 19 | 2 | | 5 | +487177771330 | 19 | 3 | | 6 | +48502364756 | 19 | 4 | | 7 | +48692625738 | 19 | 5 | | 8 | +487177771340 | 2 | 1 | | 9 | +487177771341 | 2 | 2 | | 10 | +487177771440 | 2 | 3 | | 11 | +48501342890 | 2 | 4 | | 12 | +48660134526 | 2 | 5 | | 13 | +487177771265 | 6 | 1 | | 14 | +487177771724 | 7 | 1 | | 15 | +487177771827 | 8 | 1 | | 16 | +487177771029 | 9 | 1 | | 17 | +487177771637 | 10 | 1 | | 18 | +487177771902 | 11 | 1 | | 19 | +487177771829 | 12 | 1 | | 20 | +487177771628 | 13 | 1 | | 21 | +487177771710 | 14 | 1 | | 22 | +487177771711 | 14 | 2 | | 23 | +48717771810 | 14 | 3 | | 24 | +48504278384 | 14 | 4 | | 25 | +48502398270 | 14 | 5 | | 26 | +487177771429 | 15 | 1 | | 27 | +487177771473 | 16 | 1 | | 28 | +487177771528 | 17 | 1 | | 29 | +487177771289 | 18 | 1 | +------------+---------------+---------+-----------+ 29 rows IN SET (0,00 sec)
Jak teraz tworzyc zapytania by porcjować dane np po 20?