Please help me with the query

let say you run the query
Select * from tblMain

if you have the data you will get result:
num   name     zip
1      Steven 91356
2     Leonad 94875
and so on...
how about if you do not have anything you will get this
num   name     zip
how to modify the query and get just something like this:
0
rfedorovAsked:
Who is Participating?
 
SharathConnect With a Mentor Data EngineerCommented:
You have to add the WHERE condition in the sub query also.
Select num,name,zip,Date from tblMain where Date =format(now,"mm/dd/yyyy")
union 
select 0,null,null,null from tblMain where not exists (select 1 from tblMain where Date =format(now,"mm/dd/yyyy"))

Open in new window

0
 
Armen Stein - Microsoft Access MVP since 2006PresidentCommented:
That's not how queries work.  They return records if they exist, not if they don't.  Can you tell us what you are trying to accomplish with this "zero" record?
0
 
SharathData EngineerCommented:
Try this.
Select num,name,zip from tblMain
union all
select 0,null,null where not exists (select 1 from tblMain)

Open in new window

0
Easily Design & Build Your Next Website

Squarespace’s all-in-one platform gives you everything you need to express yourself creatively online, whether it is with a domain, website, or online store. Get started with your free trial today, and when ready, take 10% off your first purchase with offer code 'EXPERTS'.

 
rfedorovAuthor Commented:
Thank you, guys.
To ArmenStein:i need to get the count of records even if there is no records. ---in this case is Zero is my result. I need the count to add to one more query results to get the final number
To: Sharath_123: i am getting the error message
Syntax error(missing operator) in query exression 'null where not exists (select 1 from tblMain)
'
0
 
SharathData EngineerCommented:
Check this
Select num,name,zip from tblMain
union 
select 0,null,null from tblMain where not exists (select 1 from tblMain)

Open in new window

0
 
rfedorovAuthor Commented:
thank you, it did not give me the error, but it does not give me the zero
i added the extra field Date
what i want, i think it make more sense, show me * from the table where date is not todays

and it stll gives me just a header:
num name zip Date

and i want like that
num name zip Date
0
is this possible???
Select num,name,zip,Date from tblMain where Date =format(now,"mm/dd/yyyy")
union 
select 0,null,null,null from tblMain where not exists (select 1 from tblMain)

Open in new window

0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.