Nested PROC SQL code can get bigger and harder to understand, eventually taking more time to debug the code when things go wrong. Retaining variable value probably is not easy to do in PROC SQL.

Note: The SQL procedure displays the variable labels as stored in the view. However, because you are referencing a view descriptor, you must use the SAS variable names in the WHERE clause, not the ...

Proc sql is a SAS procedure that allows you to use Structured Query Language (SQL) to query and manipulate data. SQL is a standard language for relational databases, and it can perform many of the ...

In this example, you use PROC SQL to create a new DBMS table based on data from other DBMS tables. By using PRESERVE_COL_NAMES=YES, you preserve the case-sensitivity of the aliased column names. A ...