Joining two queries together in Oracle SQL - sql

Question

I have 2 queries in Oracle, one gives me information about the jobs, the other gives me a correct (amended) start time and target time to take into account the working day.
The field linking both tables is job.job_number
What I would like to do is have them together so that all the information is provided in one report, but I'm not sure how to do this.
Query 1 code
select
job.job_number,
job.job_entry_date,
job.site_code
from
job
inner join JOB_STATUS_LOG on JOB.JOB_NUMBER = JOB_STATUS_LOG.JOB_NUMBER
and job.job_log_number = job_status_log.job_log_number
inner join JOB_STATUS on JOB_STATUS.STATUS_CODE = JOB_STATUS_LOG.STATUS_CODE
where
job_status_log.allocated_officer = 'IDVE'
and job_status.status_code in ('5100','5200','5300','5400')
order by
job.job_number
Query 1 output
Job Number Job Entry Date Job Site Code
12345 01/08/2019 21:00 1234
67890 01/08/2019 18:00 5678
Query 2 Code
select
job_number,
clock_start,
case
when to_char(target_time, 'Dy', 'NLS_DATE_LANGUAGE=ENGLISH') = 'Fri'
and floor((target_time - trunc(target_time)) * 24) >= 17
then target_time + 2 + 63/24
when floor((target_time - trunc(target_time)) * 24) >= 17
then target_time + 15/24
else target_time
end as target_time
from
(
select job_number, priority_code, clock_start,
CASE
WHEN PRIORITY_CODE IN ('GC01','GC02','GC03','GC04','GC05','GC06','GC07')
THEN
clock_start + case priority_code
when 'GC01' then 1
when 'GC02' then 2
when 'GC03' then 0.5
when 'GC04' then 1
when 'GC05' then 2
when 'GC06' then 4
when 'GC07' then 24
end / 24
ELSE TARGET_COMP_DATE END as target_time
from
(
select job_number, priority_code, job_entry_date, target_comp_date,
case
when to_char(job_entry_date, 'Dy', 'NLS_DATE_LANGUAGE=ENGLISH') =
'Fri'
and floor((job_entry_date - trunc(job_entry_date)) * 24) >= 17
then trunc(job_entry_date) + 80/24
when to_char(job_entry_date, 'Dy', 'NLS_DATE_LANGUAGE=ENGLISH') =
'Sat'
then trunc(job_entry_date) + 56/24
when to_char(job_entry_date, 'Dy', 'NLS_DATE_LANGUAGE=ENGLISH') =
'Sun'
or floor((job_entry_date - trunc(job_entry_date)) * 24) >= 17
then trunc(job_entry_date) + 32/24
when floor((job_entry_date - trunc(job_entry_date)) * 24) < 8
then trunc(job_entry_date) + 8/24
else job_entry_date
end as clock_start
from job
)
)
where
priority_code in ('GC01','GC02','GC03','GC04','GC05','GC06','GC07')
Query 2 output
Job Number Clock Start Target Time
12345 02/08/2019 08:00 02/08/2019 10:00
67890 02/08/2019 08:00 02/08/2019 12:00
Required Output
This is how I would like it to appear
Job Number Job Entry Date Job Site Code Clock Start Target Time
12345 01/08/2019 21:00 1234 02/08/2019 08:00 02/08/2019 10:00
67890 01/08/2019 18:00 5678 02/08/2019 08:00 02/08/2019 12:00

Answer 1

One option might be to use current queries as sources for the WITH factoring clause (i.e. the CTE, Common table expression) and join them afterwards. I've shortened your queries (named q1 and q2) to make the example simpler to understand:
WITH q1 AS (SELECT job_number, job_entry_date, site_code FROM some_tables),
q2 AS (SELECT job_number, clock_start, target_time FROM another_tables)
SELECT a.job_number,
a.job_entry_date,
a.site_code,
b.clock_start,
b.target_time
FROM q1 a JOIN q2 b ON a.job_number = b.job_number
As you said that the first word has to be SELECT, no problem - switch to inline views:
SELECT a.job_number,
a.job_entry_date,
a.site_code,
b.clock_start,
b.target_time
FROM (SELECT job_number, job_entry_date, site_code FROM some_tables) a
JOIN
(SELECT job_number, clock_start, target_time FROM another_tables) b
ON a.job_number = b.job_number
I don't know which version it is nor whether it supports such joins; if not, then another option is
...
FROM (SELECT job_number, job_entry_date, site_code FROM some_tables) a,
(SELECT job_number, clock_start, target_time FROM another_tables) b
WHERE a.job_number = b.job_number

Answer 2

As you are basically reading your info's from the job table you might simple pass the additional data through your subselects auf Query 2. The JOINS in Query 1 are only for filtering reasons i think:
select
job_number,
job_entry_date,
site_code,
clock_start,
case
when to_char(target_time, 'Dy', 'NLS_DATE_LANGUAGE=ENGLISH') = 'Fri'
and floor((target_time - trunc(target_time)) * 24) >= 17
then target_time + 2 + 63/24
when floor((target_time - trunc(target_time)) * 24) >= 17
then target_time + 15/24
else target_time
end as target_time
from
(
select job_number, job_entry_date, site_code, priority_code, clock_start,
CASE
WHEN PRIORITY_CODE IN ('GC01','GC02','GC03','GC04','GC05','GC06','GC07')
THEN
clock_start + case priority_code
when 'GC01' then 1
when 'GC02' then 2
when 'GC03' then 0.5
when 'GC04' then 1
when 'GC05' then 2
when 'GC06' then 4
when 'GC07' then 24
end / 24
ELSE TARGET_COMP_DATE END as target_time
from
(
select job_number, priority_code, job_entry_date, target_comp_date,
case
when to_char(job_entry_date, 'Dy', 'NLS_DATE_LANGUAGE=ENGLISH') =
'Fri'
and floor((job_entry_date - trunc(job_entry_date)) * 24) >= 17
then trunc(job_entry_date) + 80/24
when to_char(job_entry_date, 'Dy', 'NLS_DATE_LANGUAGE=ENGLISH') =
'Sat'
then trunc(job_entry_date) + 56/24
when to_char(job_entry_date, 'Dy', 'NLS_DATE_LANGUAGE=ENGLISH') =
'Sun'
or floor((job_entry_date - trunc(job_entry_date)) * 24) >= 17
then trunc(job_entry_date) + 32/24
when floor((job_entry_date - trunc(job_entry_date)) * 24) < 8
then trunc(job_entry_date) + 8/24
else job_entry_date
end as clock_start
,site_code
from job
)
)
where
priority_code in ('GC01','GC02','GC03','GC04','GC05','GC06','GC07')