Did you try formatting the date as date? Add a statement like: FORMAT startdate date10.;   DATA Work.dataset;   infile datalines;   input startdate anydtdte16.;   if startdate ~=.;     numericdate = startdate;   format startdate date10.;   datalines;   StartDate (variable name)   Start Date   {"ImportId":"startDate","timeZone":"America/Denver"}   5/12/2019 16:16   ; RUN; ... View more

If you want to apply multiple restrictions use AND between the different qualifiers.   DATA G7Data.Restricted; SET RMG7.CO_BIRTH_FALL2018_PRMD6626 (KEEP = ID MatTrans Income MEduc BWGr Apgar5 Apgar10 Plurality FacilityTpye AttendantType Gindex BirthState EstGest EstGestOb EstGestClin); where Plurality = "1" and AttendantType in( "1" "2""3" "4") and FacilityType = "1" and BirthState = "99999000006" and 18 le M_Age LE 35 ; RUN; The IN operator is basically a shorthand for Variable = "value" or variable = "other value" or variable= "yet another value" with some added advantages for ranges of integer values. SAS supports   a < b < c type comparisons so you can more easily see things than having to use an AND with two comparisons. ... View more