topic Re: single quote and double quote in SAS Programming

single quote and double quote

Tap222 — Tue, 13 Dec 2016 09:43:14 GMT

What is difference between single quotation marks and double quotation marks?

Re: single quote and double quote

Kurt_Bremser — Tue, 13 Dec 2016 09:43:33 GMT

Single quotes prevent the resolution of macro triggers (& and %) in the enclosed text.

Exception: when single quotes are embedded within double quotes:

%let test=xxx;

data test;
test1 = "'&test'";
run;

Re: single quote and double quote

ballardw — Tue, 13 Dec 2016 15:41:34 GMT

Also the use of single quotes around a character literal also allows placing a single (or odd number of) double quote into the value such as the use of " for inch measurements: '5.3"' <= that is " followed with ' and vice versa "John's car". While possible to do with just one quote style the alternate 'John''s car' <= the '' is two single quotes, isn't quite as obvious in some situations and can be difficult to deal with for multiple single quotes needed within a single string.