troubleshooting Question

error problem with 1582 Incorrect parameter count in the call to native function 'ISNULL'

Avatar of badr s
badr s asked on
Visual Basic.NET* mysq
2 Comments1 Solution258 ViewsLast Modified:
hello everyone
i have 2 tables one (visits) and other one (patients) with relationship by mysql (patients) is with PK as patients.pid and visits.pid as index
and i wanted to use code in my vb.net app to get the last datetime record to check the patient if still inside the hospital admitted or discharge
so far i have this code with help of you guys
SELECT a.pid,MAX(ISNULL(b.sdat,'1901-01-01')),MAX(ISNULL(b.edat,'1901-01-01')) from patients a left join visits b on a.pid=b.pid Where ddatediff(now(),b.edat) <=365 group by a.pid

Open in new window

but when i execute in sql builder using php myadmin  or another app i get error
(1582 - Incorrect parameter count in the call to native function 'ISNULL')
i tried to find out the error cause but no luck until now
ASKER CERTIFIED SOLUTION
CompProbSolv

Our community of experts have been thoroughly vetted for their expertise and industry experience.

Join our community to see this answer!
Unlock 1 Answer and 2 Comments.
Start Free Trial
Learn from the best

Network and collaborate with thousands of CTOs, CISOs, and IT Pros rooting for you and your success.

Andrew Hancock - VMware vExpert
See if this solution works for you by signing up for a 7 day free trial.
Unlock 1 Answer and 2 Comments.
Try for 7 days

”The time we save is the biggest benefit of E-E to our team. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange.

-Mike Kapnisakis, Warner Bros