sql - List a column value that has a certain number or great, referencing two tables -


i have 2 tables named project , task. check below portion out of tables:

project

projectnumber projecttitle

task

projectnumber tasknumber hours

i need list project have @ least 2 tasks, displaying project number, how many tasks project, , total number of hours worked on tasks project.

i'm not sure how because there multiple tasks 1 project. information appreciated. thank you!

if table needed, i'm not sure how can add because can't link websites. also, in sqlplus.

i think should work:

select   projectnumber,   count(*) count_of_tasks   sum(hours) sum_hours   task group   projectnumber having   count(*)>1

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