if(condition, then, else) in Oracle

Question

MySQL/MSSQL has a neat little inline if function you can use within queries to detect null values, as shown below.

SELECT

...

foo.a_field AS \"a_field\",
SELEC         


        

Answer 1

Use the standard COALESCE function:

SELECT COALESCE(foo.bar, 0) as "bar", ...

Or use Oracle's own NVL function that does the same.