sprintf_or_null
returns a formatted string or null if any of the arguments except the first is null.
sprintf_or_null
(
format string,
arg_1 any,
... ,
arg_x any);
Description
sprintf_or_null is similar to sprintf and returns a new string formed by "printing" a variable number
of arguments arg_1 - arg_x according to the format string format. The difference is that the function can return
null if any of the arguments except the first one is null.
Examples
create function job_history(
in EMPLOYEE_ID integer,
in START_DATE date) returns varchar
{
return sprintf_or_null
('http://demo.openlinksw.com:8890/hr/job_history#%d_%s',
EMPLOYEE_ID, cast (START_DATE as varchar) );
};