|Related to : Django JOIN. select data + select count|
|SELECT with a COUNT of another SELECT|
Try a dependent subquery:
( SELECT count(*)
FROM sometable t2
WHERE t2.id = t1.id
AND t2.status = 3
) As somecolumnname
FROM sometable t1
|Do SELECT COUNT from 2 tables in MySQL|
Try this. Use Conditional Aggregate logic to find StudentInCourseCount
. Update : Osa E is right it should be Distinct Count.
SELECT Count(DISTINCT s.SID) STUDENTCOUNT,
WHEN ENROLLDATE BETWEEN REGISTRATIONDATE AND
REGISTRATIONDATE + 28 THEN 1
FROM STUDENT S
|Assigning value to variable from a select count|
You need to use SELECT INTO in PL/SQL to set values returning from
SELECT queries. Can you change it as follows and see what error you
get after that?
Also IF EXISTS is not valid in Oracle, see here.
I guess, you cannot get the values of the deleted row with
CONTRATO.DATA_FIM_CONTRATO, instead, you need to write
:old.DATA_FIM_CONTRATO. This time, here.
create or replace TRIGGER ANULAR_CONTRATO
|Select TOP x records and return count|
I think you can just use a subquery:
from (select top 18 id, obsDate, impact
where diseaseID = 2 AND pCode = 3352 AND obsDate <=
'2014/11/5 11:30:00 PM'
I would also advise you to use a more standard date format, such as
'2014-11-05 11:30:00 PM'.
|Count and Display Combined Select Option Values|
Yes, Google is a good idea to find what you're looking for.
I can recommend Codeschool, they are having very good free online
courses for these topics. (Sign-up required but there are many free
courses.) The courses are fun to do. They are structured in short
video screencasts and afterwards you have to use that knowledge to
pass the exercise.