dt st (r dtst) s cllctn f dt. n th cs f tblr dt, dt st crrspnds t n r mr dtbs tbls, whr vry clmn f tbl rprsnts prtclr vrbl, nd ch rw crrspnds t gvn rcrd f th dt st n qstn. Th dt st lsts vls fr ch f th vrbls, sch s fr xmpl hght nd wght f n bjct, fr ch mmbr f th dt st. Dt sts cn ls cnsst f cllctn f dcmnts r fls.
n th pn dt dscpln, dt st s th nt t msr th nfrmtn rlsd n pblc pn dt rpstry. Th rpn dt.rp. prtl ggrgts mr thn mlln dt sts.