Question

Learning about SQL datatypes in PL/SQL. I have a question about what datatype the following expression is:

temp := temp1 < (temp2/ 3);

I’m a bit confused on what datatype this may be. Datatypes can be Numeric, Characters, Boolean, Datetime, and Interval types but this one is throwing me off because of the expressions < and /. This makes me think it’s Boolean but I’m not sure.

Answer 1

It is a boolean. It’s equivalent to:

boolean temp;
... 

if (temp1 < (temp2/3) then
  temp := true;
else
  temp := false;
end if;