Hello   For a sas/af application where the user can put free text related to variable values in a dataset, in order to make a sub-query in a WHERE statement, such as: SEX=1 AND AGE>=16   I need to put quotes in the alphanumeric variable values and leave the numeric ones as they are. Lets say SEX is alphanumeric and AGE numeric, so the result should be: SEX='1' AND AGE>=16   Of course there is a list of alphanumeric and numeric variables and all operators could be used ( = EQ,^= NE,¬= NE,~= NE,> GT,< LT,>= GE,<= LE, IN,& AND,| OR,! OR,¦ OR,¬ NOT,ˆ NOT,~ NOT).   Thanks in advance! ... View more