Count the no of record with condition in sqlserver ?

Question

0.00/5 (No votes)

See more:

SQL-Server-2014

Accounts Table

------------------
cases| type |
------------------
 A1  | UNDER
------------------
 A1  | UNDER
------------------
 B1  | OVER
------------------
 B1  | UNDER
------------------
 B1  | OVER
------------------
 C1  | OVER
------------------
 C1  | OVER
-----------------
 D1 | UNDER
----------------
 E1 | OVER
----------------
 E1 | UNDER

What I have tried:

1.COUNT THE CASES WHERE ALL ITERATION of TYPE IS "UNDER" FOR THE CASES
 (see A1 iteration is having all UNDER it would give COUNT 1)

i tried to get the record but its giving me every record which has "UNDER"
result count should be 1 only
select COUNT(CASEID) from ACCOUNTS WHERE TYPE="UNDER" -> its not giving proper result

Posted 25-Jul-19 9:10am

Member 13047430

Updated 25-Jul-19 12:02pm

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Patrice T · Answer 1 · 2019-07-25T12:02:00

Filtering "under" is a wrong approach because it remove information about not "under".
I would attack the problem with 2 cascading selects.
The first do a synthesis of database:
field CASEID
field records: count(CASEID)
field unders: sum(if(TYPE="UNDER", 1, 0))

SQL

select CASEID, count(CASEID) as records, sum(if(TYPE="UNDER", 1, 0)) as unders GROUP BY CASEID

caseid records unders
 A1     2       2
 B1     3       1
 C1     2       0
 D1     1       1
 E1     2       1

In the second, you compare records and unders to know which caseid to keep according to your needs.
Left as exercise.

OriginalGriff · Answer 2 · 2019-07-25T09:16:00

Solution 1

Read the question again: you've missed a bit.
It wants you to count every different cases value that has a type of 'UNDER', not a single value result:

A1 2
B1 1
C1 0
D1 1
E1 1

To do that, you will need a GROUP BY clause.

But it's your homework, so I'm not going to give you the code just like that!
Give it a try and see how far you can get...

Posted 25-Jul-19 9:16am

OriginalGriff

Comments

Member 13047430 25-Jul-19 15:42pm

its not a homework by the way its a scenerio i extracted from my project report.
and one more thing your understanding is wrong

i want the count of cases which is having UNDER only mean A1 is the only case where all are under so result of count will be 1

it will not count other cases because its not having all UNDER for a case