I need your guys' help with this question. I needed to join two tables and retrieve data from DATA2 c. The subqueries are listed below.
; With CB_CTE (loan, purchase, valid_if) AS
( SELECT g.purchase_amount AS purchase,
g.loan_amount AS loan,
(CASE WHEN to_char(g."purchasedate", 'yyyy-mm-dd') = to_char(g."issuedate", 'yyyy-mm-dd') THEN 'YES' ELSE 'NO') AS valid_if
FROM DATA g
WHERE 'OK' = 1_view_param_set_code('0103')
AND 'OK' = 1_view_param_set_begin('2019-01-01')
AND 'OK' = 1_view_param_set_end('2019-01-01')
SELECT DISTINCT c.clientaddress, c.city, c.district, c.companycode, c.products, c.client, c.clientnumber, loan, purchase, valid_if
FROM DATA g
RIGHT JOIN DATA2 c
WHERE 'OK' = 1_view_param_set_code('0103')
AND 'OK' = 1_view_param_set_begin('2019-01-01')
AND 'OK' = 1_view_param_set_end('2019-01-01')
I have to say that I am new to SQL. After I run this code, plsql returns ora32038. I have checked three elements that have been defined. But still, get the error. I would greatly appreciate it if someone could help me.
Related
i have i would like to create a join over several tables.
table login : I would like to retrieve all the data from login
table logging : calculating the Nb_of_sessions for each db & for each a specific event type by user
table meeting : calculating the Nb_of_meetings for each db & for each user
table live : calculating the Nb_of_live for each db & for each user
I have those queries with the right results :
SELECT db.id,_id as userid,firstname,lastname
FROM "logins"."login",
UNNEST(dbs) AS a1 (db)
SELECT dbid,userid,count(distinct(sessionid)) as no_of_visits,
array_join(array_agg(value.from_url),',') as from_url
FROM "loggings"."logging"
where event='url_event'
group by db.id,userid;
SELECT dbid,userid AS userid,count(*) as nb_interviews,
array_join(array_agg(interviewer),',') as interviewer
FROM "meetings"."meeting"
group by dbid,userid;
SELECT dbid,r1.user._id AS userid,count(_id) as nb_chat
FROM "lives"."live",
UNNEST(users) AS r1 (user)
group by dbid,r1.user._id;
But when i begin to try put it all together, it seems i retrieve bad data (i have only on db retrieved) and it seems not efficient.
select a1.db.id,a._id as userid,a.firstname,a.lastname,count(rl._id) as nb_chat
FROM
"logins"."login" a,
"loggings"."logging" b,
"meetings"."meeting" c,
"lives"."live" d,
UNNEST(dbs) AS a1 (db),
UNNEST(users) AS r1 (user)
where a._id = b.userid AND a._id = c.userid AND a._id = r1.user._id
group by 1,2,3,4
Do you have an idea ?
Regards.
The easiest way is to work with with to structure the subquery and then reference them.
with parameter reference:
You can use WITH to flatten nested queries, or to simplify subqueries.
The WITH clause precedes the SELECT list in a query and defines one or
more subqueries for use within the SELECT query.
Each subquery defines a temporary table, similar to a view definition,
which you can reference in the FROM clause. The tables are used only
when the query runs.
Since you already have working sub queries, the following should work:
with logins as
(
SELECT db.id,_id as userid,firstname,lastname
FROM "logins"."login",
UNNEST(dbs) AS a1 (db)
)
,visits as
(
SELECT dbid,userid,count(distinct(sessionid)) as no_of_visits,
array_join(array_agg(value.from_url),',') as from_url
FROM "loggings"."logging"
where event='url_event'
group by db.id,userid
)
,meetings as
(
SELECT dbid,userid AS userid,count(*) as nb_interviews,
array_join(array_agg(interviewer),',') as interviewer
FROM "meetings"."meeting"
group by dbid,userid
)
,chats as
(
SELECT dbid,r1.user._id AS userid,count(_id) as nb_chat
FROM "lives"."live",
UNNEST(users) AS r1 (user)
group by dbid,r1.user._id
)
select *
from logins l
left join visits v
on l.dbid = v.dbid
and l.userid = v.userid
left join meetings m
on l.dbid = m.dbid
and l.userid = m.userid
left join chats c
on l.dbid = c.dbid
and l.userid = c.userid;
I have a peewee query that looks like this:
toptx24h = Transaction.select(fn.MAX(Transaction.amount).alias('amount'), User.user_name).join(User,on=(User.wallet_address==Transaction.source_address)).where(Transaction.created > past_dt).limit(1)
My understanding is this should be equivalent to:
select MAX(t.amount) as amount, u.user_name from transaction t inner join user u on u.wallet_address = t.source_address where transaction.created > past_dt limit 1
My question is how to I access the results user_name and amount
When I try this, I get an error saying top has no attribute named amount
for top in toptx24h:
top.amount # No such attribute amount
I'm just wondering how i can access the amount and user_name from the select query.
Thanks
I think you need a GROUP BY clause to ensure you're grouping by User.username.
I wrote some test code and confirmed it's working:
with self.database.atomic():
charlie = TUser.create(username='charlie')
huey = TUser.create(username='huey')
data = (
(charlie, 10.),
(charlie, 20.),
(charlie, 30.),
(huey, 1.5),
(huey, 2.5))
for user, amount in data:
Transaction.create(user=user, amount=amount)
amount = fn.MAX(Transaction.amount).alias('amount')
query = (Transaction
.select(amount, TUser.username)
.join(TUser)
.group_by(TUser.username)
.order_by(TUser.username))
with self.assertQueryCount(1):
data = [(txn.amount, txn.user.username) for txn in query]
self.assertEqual(data, [
(30., 'charlie'),
(2.5, 'huey')])
The following works and results in the output shown in the image below.
SELECT
SU_Internal_ID,
NQ_QuestionText,
NA_AnswerText,
NoOfTimesChoosen
FROM
(SELECT
U.SU_Internal_ID,
NQ.NQ_QuestionText,
NA.NA_AnswerText,
COUNT(PC.UserID) AS NoOfTimesChoosen
FROM [dbo].[ParticipantNSChoices] PC
INNER JOIN [dbo].[KnowledgeSurveyAnswers] NA
on PC.NA_Internal_ID = NA.NA_Internal_ID
INNER JOIN [dbo].[KnowledgeSurveyQuestions] NQ
on PC.NQ_Internal_ID = NQ.NQ_Internal_ID
INNER JOIN [dbo].[AspNetUsers] U
on PC.UserID = U.Id
WHERE
U.SU_Internal_ID=1
and NQ.NQ_QuestionText LIKE '%Do you feel comfortable working with computers%'
GROUP
BY U.SU_Internal_ID,
NQ.NQ_QuestionText,
NA.NA_AnswerText ) as A
I want to add a column to show the percent for the two answers 'No' and 'Yes': so next to 'No' I want '20' and next to 'Yes' '80', but I'm pretty new at this and am stuck; I would appreciate any help. Thanks.
Result of working script
You don't need the outer SELECT.
SELECT
U.SU_Internal_ID,
NQ.NQ_QuestionText,
NA.NA_AnswerText,
COUNT(PC.UserID) AS NoOfTimesChoosen,
(cast(COUNT(PC.UserID) as float) /
cast(
(select count(*) from [dbo].[ParticipantNSChoices] PC2
INNER JOIN [dbo].[KnowledgeSurveyAnswers] NA2 on PC2.NA_Internal_ID = NA2.NA_Internal_ID
INNER JOIN [dbo].[KnowledgeSurveyQuestions] NQ2 on PC2.NQ_Internal_ID = NQ2.NQ_Internal_ID
INNER JOIN [dbo].[AspNetUsers] U2 on PC2.UserID = U2.Id
WHERE
U2.SU_Internal_ID=1
and NQ2.NQ_QuestionText LIKE '%Do you feel comfortable working with computers%' )
as float))
* 100 as PercentChosen
FROM [dbo].[ParticipantNSChoices] PC
INNER JOIN [dbo].[KnowledgeSurveyAnswers] NA
on PC.NA_Internal_ID = NA.NA_Internal_ID
INNER JOIN [dbo].[KnowledgeSurveyQuestions] NQ
on PC.NQ_Internal_ID = NQ.NQ_Internal_ID
INNER JOIN [dbo].[AspNetUsers] U
on PC.UserID = U.Id
WHERE
U.SU_Internal_ID=1
and NQ.NQ_QuestionText LIKE '%Do you feel comfortable working with computers%'
GROUP
BY U.SU_Internal_ID,
NQ.NQ_QuestionText,
NA.NA_AnswerText
The counts will be integers, so you need to cast as floats before dividing. You can then further format to your liking. Also, I might not have your exact denominator, because I don't know what your data looks like, but you can modify to match what you need.
I am running a query with Oracle:
SELECT
c.customer_number,
COUNT(DISTINCT o.ORDER_NUMBER),
COUNT(DISTINCT q.QUOTE_NUMBER)
FROM
Customer c
JOIN Orders o on c.customer_number = o.party_number
JOIN Quote q on c.customer_number = q.account_number
GROUP BY
c.customer_number
This works beautifully and I can get the customer and their order and quote counts.
However, not all customers have orders or quotes but I still want their data. When I use LEFT JOIN I get this error from Oracle:
ORA-24347: Warning of a NULL column in an aggregate function
Seemingly this error is caused by the eventual COUNT(NULL) for customers that are missing orders and/or quotes.
How can I get a COUNT of null values to come out to 0 in this query?
I can do COUNT(DISTINCT NVL(o.ORDER_NUMBER, 0)) but then the counts will come out to 1 if orders/quotes are missing which is no good. Using NVL(o.ORDER_NUMBER, NULL) has the same problem.
Try using inline views:
SELECT
c.customer_number,
o.order_count,
q.quote_count
FROM
customer c,
( SELECT
party_number,
COUNT(DISTINCT order_number) AS order_count
FROM
orders
GROUP BY
party_number
) o,
( SELECT
account_number,
COUNT(DISTINCT quote_number) AS quote_count
FROM
quote
GROUP BY
account_number
) q
WHERE 1=1
AND c.customer_number = o.party_number (+)
AND c.customer_number = q.account_number (+)
;
Sorry, but I'm not working with any databases right now to test this, or to test whatever the ANSI SQL version might be. Just going on memory.
UPDATE tracks
SET People_id_Reference = (SELECT People_id
FROM People
RIGHT JOIN top100
ON
People_name=top100.artist )
WHERE People_id_Reference IS NULL;
But I get Error like this:
ERROR 1242(21000): SUBQUERY RETURNS MORE THAN ONE ROW
Can some on help me with this. Thanks in advance
The simplest way would be to append a LIMIT 1 onto the end of the subquery to only force it to return a single row.
change your code like this :
SELECT *
FROM package_reviews
WHERE post_id = ANY (SELECT post_id
FROM wp_posts
WHERE post_author=1);
this link is very useful
http://dev.mysql.com/doc/refman/5.0/en/subquery-errors.html