PL/C programming languagePL/C
is a large subset of IBM
language, designed in the early 1970s
at Cornell University
. It was intended to be a teaching language, aimed at novice programmers. While removing some of the more complex features of PL/I, it added extensive debugging and error recovery facilities.
PL-SQL is a query language used by the Oracle DBMS which adds to SQL standard programming control structures such as loops and if/then statements.