Al Horford has 2 triple-doubles in his career.

how many career triple-doubles does al horford have
Interpreted as:
How many career regular-season triple-doubles does Al Horford have?
NAMEGPTD3MPGPPGRPGAPGSPGBPGTPGFGMFGAFG%3PM3PA3P%FTMFTAFT%MINPTSREBASTSTLBLKTOVPF+/-
Al HorfordAl Horford895232.413.98.23.30.81.21.65.811.351.70.61.736.11.72.275.729,00912,4737,3612,9617251,0621,3902,020+2062
StatMuse has season-level data for triple-doubles going back to the 1950-51 season.