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DATA statement SET statement INPUT statement DATALINES LENGTH statement FORMAT statement INFORMAT statement LABEL statement KEEP statement DROP statement
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IF THEN ELSE WHERE statement SELECT WHEN DO loop DO WHILE DO UNTIL RETAIN statement SUM statement FIRST. and LAST. variables Automatic _N_ variable
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PROC SORT BY statement NODUPKEY PROC FREQ PROC MEANS CLASS statement VAR statement OUTPUT statement PROC SUMMARY PROC UNIVARIATE
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MERGE statement BY-group merge IN= data set option One-to-many merge UPDATE statement MODIFY statement PROC TRANSPOSE ARRAY statement DO OVER array Hash object lookup
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%LET Macro variable reference %MACRO and %MEND Macro parameters %IF %THEN %DO loop CALL SYMPUTX SYMGET %SYSFUNC Macro quoting %SUPERQ
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SAS Complete Course / Row Processing

WHERE statement

Learn WHERE statement in SAS through the exact construct, a dedicated example, a boundary case, and a mastery check.

10 min read • Beginner

WHERE statement is an atomic SAS lesson inside Row Processing. The example uses the specific syntax, command, API, instruction, or language rule named by this lesson.

Study the construct itself, then change one relevant input and predict the result before running it. That keeps this lesson focused on WHERE statement rather than on generic SAS syntax.

Topic-specific example

sas-02-02.sas
sas Try It Live 
data work.active; set work.users; where active=1; run;
Edge case / engineering note

For WHERE statement, inspect the SAS log as well as the output data set; type conversion, missing values, and BY-group ordering can change results without stopping execution.

Content source & attribution
Original Syntaxis Content · Original Syntaxis Content

Lesson quizzes

WHERE statement Mastery Check →
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IF THEN ELSE
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SELECT WHEN