Oracle: Output of one query to input of another query - sql

I need to join two queries output of 1st query should be the input for 2nd query in where clause, How do I achieve this?
Select
Distinct
TRNSFR_SRC_ID,
DESCR_ORG,
SUBJECT,
CRSE_NBR,
DESCR1_FRMVW,
SUBJECT_TO,
CATALOG_NBR_TO,
FROM
TRNSFR_CRSE
WHERE
ORG_ID = ?
Select
Distinct
ATTR_VALUE
From TRNSFR_CRSE
Where
ORG_ID = ?
and SUBJECT = ?
and CRSE_NBR = ?
and SUBJECT_TO = ?
and CATALOG_NBR_TO = ?
and CRSE_ATTR = 'GHH'"

Oracle can make this really easy, but I'm not sure how to apply it in this case. But something like this:
select Distinct ATTR_VALUE
from TRNSFR_CRSE
where (ORG_ID, SUBJECT, CRSE_NBR, SUBJECT_TO, CATALOG_NBR_TO) IN
(Select TRNSFR_SRC_ID, SUBJECT, CRSE_NBR, SUBJECT_TO, CATALOG_NBR_TO
from TRNSFR_CRSE
where ORG_ID = ?
) and
CRSE_ATTR = 'GHH'
You can use = rather than in if you know the subquery is supposed to return no more than one row.

If I assume that the output of the 1st query is input to the second query then use below
Select
Distinct
ATTR_VALUE
From TRNSFR_CRSE
Where
(ORG_ID,SUBJECT,CRSE_NBR,SUBJECT_TO,,CATALOG_NBR_TO) in
(Select
DESCR_ORG,
SUBJECT,
CRSE_NBR,
SUBJECT_TO,
CATALOG_NBR_TO,
FROM
TRNSFR_CRSE
WHERE
ORG_ID = ?)
and CRSE_ATTR = 'GHH'"

Related

How do I write a query to reference two keys and two values?

I am trying to write a query in Google BigQuery that pulls two keys and two values. The query should be: count distinct psuedo user IDs from one table where event_params.key = result and event_params.key = confirmation number (and is not null), and event_params.value.string_value = success. This has already been unnested. I'm SUPER new to SQL, so please dumb down any answers.
SELECT
*
FROM
`table_name`,
UNNEST(event_params) AS params
WHERE
(stream_id = '1168190076'
OR stream_id = '1168201031')
AND params.key = 'result'
AND params.value.string_value IN ('success',
'SUCCESS')
AND params.key = 'confirmationNumber' NOT NULL
I keep getting errors, and when I don't get errors, my numbers are off by a lot! I'm not sure where to go next.
Below is for BigQuery Standard SQL
#standardSQL
SELECT *
FROM `project.dataset.table`
WHERE stream_id IN ('1168190076', '1168201031')
AND 2 = (
SELECT COUNT(1)
FROM UNNEST(event_params) param
WHERE (
param.key = 'result' AND
LOWER(param.value.string_value) = 'success'
) OR (
param.key = 'confirmationNumber' AND
NOT param.value.string_value IS NULL
)
)
I suspect that you want something more like this:
SELECT t.*
FROM `table_name`t
UNNEST(event_params) AS params
WHERE t.stream_id IN ('1168190076', '1168201031') AND
EXISTS (SELECT 1
FROM UNNEST(t.event_params) p
WHERE p.key = 'result' AND
p.value.string_value IN ('success', 'SUCCESS')
) AND
EXISTS (SELECT 1
FROM UNNEST(t.event_params) p
WHERE p.key = 'confirmationNumber'
);
That is, test each parameter independently. You don't need to unnest the result for the result set -- unless you really want to, of course.
I don't know what the lingering NOT NULL is for in your query, so I'm ignoring it. You might want to check the value, however.

select subquery using data from the select statement?

I have two tables, headers and lines. I need to grab the batch_submission_date from the header table, but sometimes a query for batch_id will return a null for batch_submission_date, but will also return a parent_batch_id, and if we query THAT parent_batch_id as a batch_id, it will then return the correct batch_submission_date.
e.g.
SELECT t1.batch_id,
t1.parent_batch_id,
t2.batch_submission_date
FROM db.headers t1, db.lines t2
WHERE t1.batch_id = '12345';
output = 12345, 99999, null
Then we use that parent batch_id as a batch_id :
SELECT t1.batch_id,
t1.parent_batch_id,
t2.batch_submission_date
FROM db.headers t1, db.lines t2
WHERE t1.batch_id = '99999';
and we get output = 99999,99999,'2018-01-01'
So I'm trying to write a query that will do this for me - anytime a batch_id's batch_submission_date is null, we find that batch_id's parent batch_id and query that instead.
This was my idea - but I just get back null both for bp_batch_submission_date and for new_submission_date.
SELECT
t1.parent_id as parent_id,
t1.BATCH_ID as bp_batch_id,
t2.BATCH_LINE_NUMBER as bp_batch_li,
t1.BATCH_SUBMISSION_DATE as bp_batch_submission_date,
CASE
WHEN t1.BATCH_SUBMISSION_DATE is null
THEN
(SELECT a.BATCH_SUBMISSION_DATE
FROM
db.headers a,
db.lines b
WHERE
a.SD_BATCH_HEADERS_SKEY = b.SD_BATCH_HEADERS_SKEY
and a.parent_batch_id = bp_batch_id
and b.batch_line_number = bp_batch_li
) END as new_submission_date
FROM
db.headers t1,
db.lines t2
WHERE
t1.SD_BATCH_HEADERS_SKEY = t2.SD_BATCH_HEADERS_SKEY
and (t1.BATCH_ID = '12345' or t1.PARENT_BATCH_ID = '12345')
and t2.BATCH_LINE_NUMBER = '1'
GROUP BY
t2.BATCH_CLAIM_LINE_STATUS_DESC,
t1.PARENT_BATCH_ID,
t1.BATCH_ID,
t2.BATCH_LINE_NUMBER,
t1.BATCH_SUBMISSION_DATE;
is what I'm trying to do possible? using the bp_batch_id and bp_batch_li variables
Use CTE (common table expression) to avoid redundant code, then use coalesce() to find parent date in case of null. In your first queries you didn't attach joining condition between two tables, I assumed it's based on sd_batch_headers_skey like in last query.
dbfiddle demo
with t as (
select h.batch_id, h.parent_batch_id, l.batch_submission_date bs_date
from headers h
join lines l on l.sd_batch_headers_skey = h.sd_batch_headers_skey
and l.batch_line_number = '1' )
select batch_id, parent_batch_id,
coalesce(bs_date, (select bs_date from t x where x.batch_id = t.parent_batch_id)) bs_date
from t
where batch_id = 12345;
You could use simpler syntax with connect by and level <= 2 but if in your data there are really rows containing same ids (99999, 99999) then we get cycle error.

Is it possible to use Informix NVL with two subqueries?

I want to get a parameter. The priority for getting that parameter is that I have to look for it in Table1, but if it doesn't exist there, I have to look for it in Table2. If not, so that parameter is null (this situation should not happen, but, well, there is always an edge case).
I wanted to try something like this:
SELECT NVL(
SELECT paramValue from Table1
where paramName = "paramName" and Id = "id",
SELECT paramValue from Table2
where paramName = "paramName" and Id = "id")
But it gives me a syntax error.
Is there any way of doing something like this?
Enclose the sub-queries in their own set of parentheses, like this:
SELECT NVL((SELECT Atomic_Number FROM Elements WHERE Name = 'Tungsten'),
(SELECT Atomic_Number FROM Elements WHERE Name = 'Helium'))
FROM sysmaster:informix.sysdual;
74
SELECT NVL((SELECT Atomic_Number FROM Elements WHERE Name = 'Wunderkind'),
(SELECT Atomic_Number FROM Elements WHERE Name = 'Helium'))
FROM sysmaster:informix.sysdual;
2
SELECT NVL((SELECT Atomic_Number FROM Elements WHERE Name = 'Wunderkind'),
(SELECT Atomic_Number FROM Elements WHERE Name = 'Helios'))
FROM sysmaster:informix.sysdual;
 
The last query generated a NULL (empty line) as output, which is mimicked by a non-breaking space on the last line.
Granted, I'm not selecting from two tables; that's immaterial to the syntax, and the sub-queries would work on two separate tables as well as on one table.
Tested with Informix 12.10.FC6 and CSDK 4.10.FC6 on Mac OS X 10.11.5.
There's another way:
SELECT * FROM (
SELECT paramValue from Table1
where paramName = "paramName" and Id = "id"
union all
SELECT paramValue from Table2
where paramName = "paramName" and Id = "id"
) x
LIMIT 1
Which is IMHO easier to read.

Combine two SOQL queries

I am a beginner concerning SOQL, I hope you can help me.
I would like to combine these two queries:
Query 1:
SELECT Id, Category__c, Segment__c
FROM Account
WHERE (Category__c = 'Prospect' AND Segment__c = 'High') OR (Category__c = 'Referrer' AND Segment__c = 'High')
Query 2:
SELECT Account_vod__c, WEEK_IN_YEAR(Call_Date_vod__c), CALENDAR_YEAR(Call_Date_vod__c)
FROM Call2_vod__c
WHERE Call_Date_vod__c = LAST_N_WEEKS:7
GROUP BY Account_vod__c, Call_Date_vod__c
Where the id of Account should equal the Account_vod__c value from Call2_vod__c.
When I combine these, I get something as:
Combined Query:
SELECT Id, Category__c, Segment__c
FROM Account
WHERE id in (select Account_vod__c from Call2_vod__c where Call_Date_vod__c = LAST_N_WEEKS:7) AND ((Category__c = 'Prospect' AND Segment__c = 'High') OR (Category__c = 'Referrer' AND Segment__c = 'High'))
But now I am missing the Week and Year values:
WEEK_IN_YEAR(Call_Date_vod__c), CALENDAR_YEAR(Call_Date_vod__c)
and this part:
GROUP BY Account_vod__c, Call_Date_vod__c
How Can I combine these queries and display the right week and calendar data?
Thanks!
If your Account_vod__c is a lookup to Account object, you can fetch fields from Account by typing Account_vod__r.Name etc (with "r" instead of "c" and using a dot).
So try with something like this?
SELECT Account_vod__c, Account_vod__r.Category__c, Account_vod__r.Segment__c, WEEK_IN_YEAR(Call_Date_vod__c), CALENDAR_YEAR(Call_Date_vod__c)
FROM Call2_vod__c
WHERE Call_Date_vod__c = LAST_N_WEEKS:7
GROUP BY Account_vod__c, Account_vod__r.Category__c, Account_vod__r.Segment__c, WEEK_IN_YEAR(Call_Date_vod__c), CALENDAR_YEAR(Call_Date_vod__c)
A similar one that should work for everybody who doesn't have your objects:
SELECT AccountId, Account.Name, COUNT(Id) countOfContactsCreatedThatWeek, WEEK_IN_YEAR(CreatedDate) week, CALENDAR_YEAR(CreatedDate) year
FROM Contact
GROUP BY AccountId, Account.Name, WEEK_IN_YEAR(CreatedDate), CALENDAR_YEAR(CreatedDate)
If you're ok with using two queries, I would start with that. In the combined version you have, you're technically calling two queries anyways. The inner query in the where clause counts as a second query against your governor limits.
If you're using Apex, try:
Map<Id, Account> aMap = new Map<Id, Account>([SELECT Id, Category__c, Segment__c
FROM Account
WHERE (Category__c = 'Prospect' AND Segment__c = 'High') OR (Category__c = 'Referrer' AND Segment__c = 'High')]);
List<Call2_vod__c> callList = [SELECT Account_vod__c, WEEK_IN_YEAR(Call_Date_vod__c), CALENDAR_YEAR(Call_Date_vod__c)
FROM Call2_vod__c
WHERE Call_Date_vod__c = LAST_N_WEEKS:7 and Id in :aMap.keySet()
GROUP BY Account_vod__c, Call_Date_vod__c];

Use column defined from subquery in query

I need to use the value obtained from SEATS_RESERVED like so. The query below gives me an Invalid column name 'SEATS_RESERVED' error.
SELECT *,
SEATS_RESERVED =
(SELECT COUNT(UID)
FROM person WHERE person.RES_DATE = reservation_dates.RES_DATE
AND person.ARCHIVE = 'FALSE')
FROM reservation_dates
WHERE TERM = ?
AND SEATS_RESERVED < MAX_SEATS;
You can't create a derived field in the SELECT and reference it in the WHERE clause.
There are several options to deal with that, here is one with the least changes to your query.
SELECT * FROM
(
SELECT *,
SEATS_RESERVED =
(SELECT COUNT(UID)
FROM person WHERE person.RES_DATE = reservation_dates.RES_DATE
AND person.ARCHIVE = 'FALSE')
FROM reservation_dates
WHERE TERM = ?
)
AS data
WHERE SEATS_RESERVED < MAX_SEATS;
You're trying to set SEATS_RESERVED equal to a value in your subquery, but you haven't declared SEATS_RESERVED yet. Also, where is MAX_SEATS defined?
How about this:
DECLARE #MAX_SEATS INT
SET #MAX_SEATS = <some integer>
SELECT *,
(SELECT COUNT(UID) FROM person WHERE person.RES_DATE = reservation_dates.RES_DATE
AND person.ARCHIVE = 'FALSE' HAVING COUNT(UID) < #MAX_SEATS;) AS SEATS_RESERVED
FROM reservation_dates
WHERE TERM = ?