SQL Query to display dates weekly from current date - sql

I have a requirement to display dates every week starting from current date for 48 months.
I was wondering if it is possible through SQL or i will have to write a function to achieve it.
Below is my SQL so far :-
SELECT
CALENDAR_DATE
FROM
CALENDAR --My Table Name
WHERE
(
CALENDAR_DATE >= trunc(sysdate)
AND
CALENDAR_DATE <= ADD_MONTHS(TRUNC(SYSDATE, 'MONTH'), 48)-1
)
This would give me output as
9/10/2020
9/11/2020
9/12/2020
9/13/2020
Expected Output :-
9/10/2020
9/17/2020
9/24/2020
10/01/2020

If I understand correctly:
WHERE CALENDAR_DATE >= trunc(sysdate) AND
CALENDAR_DATE <= ADD_MONTHS(TRUNC(SYSDATE, 'MONTH'), 48) - 1 AND
MOD(CALENDAR_DATE - TRUNC(sysdate), 7) = 0
This uses the mod() operation on the date difference. You can also check the day of the week:
WHERE CALENDAR_DATE >= trunc(sysdate) AND
CALENDAR_DATE <= ADD_MONTHS(TRUNC(SYSDATE, 'MONTH'), 48) - 1 AND
TO_CHAR(CALENDAR_DATE, 'DY') = TO_CHAR(sysdate, 'DY')

Related

remove time from date in Oracle SQL query

i have a query
select count(1) z1
from sales_data
where ed_date >= sysdate -7
i need to group by ed
_date, remove the timestamp, and condition where ed_date is from 1/1/2021 to current sysdate
You can truncate the date:
select trunc(ed_date, 'DD') as ed_date, count(*) as z1
from sales_data
where ed_date >= date '2021-01-01'
and ed_date < trunc(sysdate, 'DD')
group by trunc(ed_date, 'DD')
The 'DD' truncation limit is the default so you could omit that, as just trunc(ed_date), if you prefer. Note though that it doesn't remove the time, it just sets it to midnight - an Oracle date always has both date and time components.
You can also order by trunc(ed_date), and in the select list you can format that however you want:
select to_char(trunc(ed_date), MM/DD/YYYY') as ed_date, count(*) as z1
from sales_data
where ed_date >= date '2021-01-01'
and ed_date < trunc(sysdate) -- to exclude today and future
-- and ed_date < trunc(sysdate) + 1 -- to include today but not tomorrow onwards
group by trunc(ed_date)
order by trunc(ed_date)

How to put Case in Where Statement for Oracle SQL

For the query below, I'm trying to pull a specific date range depending on the current day of the month. If it's the 20th or less (e.g. "2/7/2020") then I want the date range for January. Otherwise, I want the date range for February. Is it possible to be done with a case statement? Or there is a better way?
SELECT
account,
start_date,
amount
FROM
table1
WHERE
CASE
WHEN (
SELECT
CAST(EXTRACT(DAY FROM sysdate) AS NUMBER)
FROM
dual
) <= 20 THEN
start_date
BETWEEN '2020-01-01' AND '2020-01-31'
ELSE start_date BETWEEN '2020-02-01' AND '2020-02-29'
END
You can do this by avoiding the case statement and using truncate the date - 20 to the month, e.g.:
SELECT account,
start_date,
amount
FROM table1
WHERE start_date >= TRUNC(SYSDATE - 20, 'mm')
AND start_date < add_months(TRUNC(dt - 20, 'mm'), 1);
If you really had to use a CASE expression (you can't use a CASE statement in SQL), you would need to do something like:
SELECT account,
start_date,
amount
FROM table1
WHERE start_date >= CASE WHEN to_char(SYSDATE, 'dd') <= '20' THEN add_months(TRUNC(SYSDATE, 'mm'), -1) ELSE TRUNC(SYSDATE, 'mm') END
AND start_date < CASE WHEN to_char(SYSDATE, 'dd') <= '20' THEN TRUNC(SYSDATE, 'mm') ELSE add_months(TRUNC(SYSDATE, 'mm'), 1) END;
N.B. if you're using a function, you don't need to wrap it in a select .. from dual, you can use it directly in the SQL statement.
I've also assumed that you want a dynamic range, e.g. if the day of the month is 20 or less, the range is for the previous month, otherwise the current month.
ETA: You would use the above two queries if there is an index on the start_date column, otherwise you could simply do:
SELECT account,
start_date,
amount
FROM table1
WHERE TRUNC(start_date, 'mm') = TRUNC(SYSDATE - 20, 'mm');
Case statements return single values. As such you should pull out the start date and you'll need two case statements.
select account, start_date, amount
from table1 where
start_date between
(case
when (select cast(extract(day from sysdate) as number) from dual) <= 20 then '2020-01-01'
else '2020-02-01'
end) and
(case
when (select cast(extract(day from sysdate) as number) from dual) <= 20 then '2020-01-31'
else '2020-02-29'
end)
One method subtracts 20 days and then gets the month boundary:
where start_date >= trunc(sysdate - interval '20' day, 'MON') and
start_date < trunc(sysdate - interval '20' day, 'MON') + interval '1' month
This approach is index (and partition) friendly -- an appropriate index on start_date can be used. It is also safe if start_date has time components.
Note: You can use sysdate without having to use a subquery.
You can use or operator with last_day function as following:
Select * from your_table
Where (
start_date <= trunc(sysdate,'mm') + 20
and start_date between trunc(sysdate,'mm') - interval '1' month and trunc(sysdate,'mm') - 1
)
Or
(
start_date > trunc(sysdate,'mm') + 20
and start_date between trunc(sysdate, 'mm') and last_day(sysdate)
)
This approach will use index on start_date, if any.
Cheers!!
select account, amount, start_date
from table1
where ( ( (select cast (extract (day from sysdate) as number) from dual) <= 20
and start_date between date '2020-01-01' and date '2020-01-31')
or ( (select cast (extract (day from sysdate) as number) from dual) > 20
and start_date between date '2020-02-01' and date '2020-02-29')
);
Using CASE expressions as BETWEEN operands:
SELECT account
, start_date
, amount
FROM table1
WHERE start_date BETWEEN CASE
WHEN extract(day from sysdate) <= 20
THEN trunc(sysdate -interval '1' month, 'month')
ELSE trunc(sysdate, 'month')
END
AND CASE
WHEN extract(day from sysdate) <= 20
THEN last_day(sysdate -interval '1' month)
ELSE last_day(sysdate)
END

current month values in oracle db

how to get current month to date values in oracle 12c sql developer
Select dcc.EMPLOYEECODE, dcc.DUTYID, dtt.DUTYDESC
from DUTYCHART dcc
join DCDUTYCHART dtt
on dcc.RESTCODE = dtt.RESTCODE
and dcc.DUTYID = dtt.DUTYID
and trunc(date) = trunc(sysdate)
Here am getting current date but I want to show current month and previous month, I tried some functions like add-months but it didn't worked for me
You can use :
trunc(sysdate, 'MONTH') -- CURRENT MONTH START DATE
ADD_MONTHS(trunc(sysdate, 'MONTH'), -1) -- PREVIOS MONTH START DATE
If you want to get data of previous month then your query's where clause must include: Replace (trunc(date) = trunc(sysdate)) with one of the following according to your need
trunc(date) BETWEEN ADD_MONTHS(trunc(sysdate, 'MONTH'), -1)
AND trunc(sysdate, 'MONTH') - 1 -- PREVIOUS MONTH'S DATA
trunc(date) >= trunc(sysdate, 'MONTH') -- -- CURRENT MONTH'S DATA
trunc(date) >= ADD_MONTHS(trunc(sysdate, 'MONTH'), -1) -- PREVIOUS AND CURRENT MONTH'S DATA TOGETHER
Cheers!!
For the current month, use:
date >= trunc(sysdate, 'MONTH')
For the previous month, use:
(date >= trunc(sysdate, 'MONTH') - interval '1' month and
date < trunc(sysdate, 'MONTH')
)
There is no reason to truncate date for the comparison.

Returning a Date Range based on Day of the Month

Select *
From Orders
WHERE (
extract(day from sysdate)<=21
and
to_date(SCHEDULEDATE , 'yyyy/mm/dd') between
to_date((to_char(sysdate, 'YYYY')||'/'||cast((extract(month from sysdate)-1)as char)||'/22'),'yyyy/mm/dd') and to_date((to_char(sysdate,'YYYY')||'/'||cast((extract(month from sysdate))as char)||'/21'),'yyyy/mm/dd')
)
or
(
extract(day from sysdate)>21
and
to_date(SCHEDULEDATE , 'yyyy/mm/dd') between
to_date((to_char(sysdate, 'YYYY')||'/'||cast((extract(month from sysdate))as char)||'/22'),'yyyy/mm/dd') and to_date((to_char(sysdate, 'YYYY')||'/'||cast((extract(month from sysdate)+1)as char)||'/21'),'yyyy/mm/dd')
)
I'm trying to figure out a simple way of returning a set of date ranges based on the day of the Month. If the Day of the month of less than or Equal to I want it to return all orders the have a schedule date between the 22 of the Month before and the 21st of the Current month. If the Day of the month is greater than 21 I would like it return all orders that have a schedule date of the current month up to the end of the month. I've tried to use a case in the where with no luck. What I have now doesn't seem to work either. Any help would be appreciated.
I think this does what you want:
WHERE (extract(day from sysdate) <= 21 and
scheduledate >= add_months(trunc(sysdate, 'MON'), -1) + 21 and
scheduledate < trunc(sysdate, 'MON') + 21
) or
(extract(day from sysdate) > 21 and
trunc(scheduledate, 'MON') = trunc(sysdate, 'MON')
)

Current Financial Year to sysdate

I can't seem to find a straightforward sql without delving into PL SQL for always bringing current financial year in which case 01-04-2015 to sysdate. I want this to always update automatically so when it comes next financial year in 01/04/2016 it will bring whatever is held from that date to whenever the report is being run.
If anyone can please shed some light for me. thanks
sql is:
SELECT
PROPERTY.PRO_MANAGINGCOMPANY_DESCR,
PROPERTY.PRO_SCHEME_DESCR,
PROPERTY.PRO_SCHEME,
SUM(REPAIR_CURRENT.REP_ESTIMATED_COST) as "Estimated Cost",
nvl(SUM(REPAIR_CURRENT.REP_INVOICED_COST),SUM(REPAIR_CURRENT.REP_ESTIMATED_COST)) as "Estimated Cost Invoiced",
SUM(REPAIR_CURRENT.REP_INVOICED_COST) as "Invoice Cost",
to_char(REPAIR_CURRENT.REP_RAISED_DATE,'Mon') as "Month",
to_number(to_char(to_date(REPAIR_CURRENT.REP_RAISED_DATE,'dd-mon-yy'),'mm')) as "Month No."
FROM
PROPERTY,
REPAIR_CURRENT,
SERVICE_REQUEST
WHERE
( SERVICE_REQUEST.SRQ_PRO_REFNO=PROPERTY.PRO_REFNO )
AND ( REPAIR_CURRENT.REP_SRQ_NO=SERVICE_REQUEST.SRQ_NO )
AND
(
--PROPERTY.PRO_SCHEME = ( '00054' )
--AND
REPAIR_CURRENT.REP_RAISED_DATE BETWEEN '01-APR-2015' AND sysdate
AND
REPAIR_CURRENT.REP_STATUS <> 'CAN'
)
GROUP BY
PROPERTY.PRO_MANAGINGCOMPANY_DESCR,
PROPERTY.PRO_SCHEME_DESCR,
PROPERTY.PRO_SCHEME,
to_char(REPAIR_CURRENT.REP_RAISED_DATE,'Mon'),
to_number(to_char(to_date(REPAIR_CURRENT.REP_RAISED_DATE,'dd-mon-yy'),'mm'))
If you just want to get the beginning of the fiscal year for the current date:
SELECT TO_DATE('01-04' || CASE
WHEN EXTRACT(MONTH FROM SYSDATE) > 4 THEN
EXTRACT(YEAR FROM SYSDATE)
ELSE
EXTRACT(YEAR FROM SYSDATE)-1
END, 'DD-MM-RRRR') FISCAL_YEAR
FROM DUAL
This works for any date:
REPAIR_CURRENT.REP_RAISED_DATE
BETWEEN Add_Months(Trunc(Add_Months(sysdate,-3),'YYYY'),3)
AND Sysdate
Basically, subtract three months, truncate to the year, and add three months back on.
To just get the financial year for a date, use:
Extract(Year from Add_Months(Trunc(Add_Months(sysdate,-3),'YYYY'),3))
SELECT *
FROM your_table
WHERE datetime >= CASE
WHEN SYSDATE < TRUNC( SYSDATE, 'YEAR' ) + INTERVAL '3' MONTH
THEN TRUNC( SYSDATE, 'YEAR' ) - INTERVAL '9' MONTH
ELSE TRUNC( SYSDATE, 'YEAR' ) + INTERVAL '3' MONTH
END;
Thank you, the following worked! add_months(trunc(sysdate,'year'),3) AND sysdate
thank you all for your input :)
REPAIR_CURRENT.REP_RAISED_DATE BETWEEN '01-APR-2015' AND sysdate
Firstly, '01-APR-2015' is not a DATE it is a string. You must always use TO_DATE along with proper format model to explicitly convert the string into DATE. Or, use the ANSI Date literal as you are not concerned with the time portion. It uses a fixed format 'YYYY-MM-DD'.
Now, coming to your date arithmetic, you could use a CASE expression to evaluate the financial date depending on the year.
REP_RAISED_DATE
BETWEEN
CASE
WHEN
SYSDATE < ADD_MONTHS(TRUNC(SYSDATE, 'YEAR'), 3)
THEN
ADD_MONTHS(TRUNC(SYSDATE, 'YEAR') , -9)
ELSE
ADD_MONTHS(TRUNC(SYSDATE, 'YEAR'), 3)
END
AND SYSDATE
Basically, SYSDATE >= ADD_MONTHS(TRUNC(SYSDATE, 'YEAR'), 3) is to check whether SYSDATE is greater than 1-APR of current year. And, SYSDATE < ADD_MONTHS(TRUNC(SYSDATE, 'YEAR'), 15) is to check whether it is between JAN and MARCH of next year.
For example,
SQL> SELECT
2 CASE
3 WHEN
4 SYSDATE < ADD_MONTHS(TRUNC(SYSDATE, 'YEAR'), 3)
5 THEN
6 ADD_MONTHS(TRUNC(SYSDATE, 'YEAR') ,-9)
7 ELSE
8 ADD_MONTHS(TRUNC(SYSDATE, 'YEAR'), 3)
9 END FINANCIAL_YEAR
10 FROM dual;
FINANCIAL
---------
01-APR-15
For date between JAN and MAR of next year:
SQL> SELECT
2 CASE
3 WHEN
4 DATE '2016-02-01' < ADD_MONTHS(TRUNC(DATE '2016-02-01', 'YEAR'), 3)
5 THEN
6 ADD_MONTHS(TRUNC(DATE '2016-02-01', 'YEAR') ,-9)
7 ELSE
8 ADD_MONTHS(TRUNC(DATE '2016-02-01', 'YEAR'), 3)
9 END FINANCIAL_YEAR
10 FROM dual;
FINANCIAL
---------
01-APR-15
Following SQLreturns start and end date for Financial Year of current date.
SELECT
TO_DATE('01-04' || EXTRACT(YEAR FROM add_months(sysdate, -3)),'DD-MM-RRRR') from_dt ,
TO_DATE('31-03' || EXTRACT(YEAR FROM add_months(sysdate, 9)),'DD-MM-RRRR') to_dt from dual;
For any random date, you can use the following SQL: example for 01-04-2020
SELECT
TO_DATE('01-04' || EXTRACT(YEAR FROM add_months(to_date('01-04-2020','DD-MM-RRRR'), -3)),'DD-MM-RRRR') from_dt ,
TO_DATE('31-03' || EXTRACT(YEAR FROM add_months(to_date('01-04-2020','DD-MM-RRRR'), 9)),'DD-MM-RRRR') to_dt from dual;