I want to get a list of the number of orders entered to our database for the last 7 days. I've tried repeating the below but it becomes some error messages about incorrect format, so I'm wondering what's the correct method.
To get order amount for current day I use SELECT COUNT(order_number) FROM orders WHERE created = TO_CHAR(sysdate, 'DD-MON-YYYY');
I want a table like:
Date Total Orders
sysdate 500
sysdate-1 400
sysdate-2 300
etc. for the last 7 days. Is it possible?
I believe the following would work for you:
Select created, count(ordernumber)
From orders
Where to_date(created, 'DD-MON-YYYY') between trunc(sysdate-7) and trunc(sysdate)
Group by created
Order by to_date(created, 'DD-MON-YYYY') desc
Note, if you can change it I would seriously consider using a DATE column for created.
You should have mentioned the specific error. I guess created is a date field and you are trying to compare it with a string. If this is the case, here is the statement needed. TRUNC removes the time part from the date.
SELECT TRUNC(created), COUNT(order_number)
FROM orders
WHERE TRUNC(created) BETWEEN TRUNC(sysdate) - 6 AND TRUNC(sysdate)
GROUP BY TRUNC(created)
ORDER BY TRUNC(created);
Related
Hello I have table "os_txn.pay_link" and inside there are many columns.
What I want to do is that I want to count the row numbers by looking at "merchant_id" column for the current day.
So for example what I am looking for an output is that today one of "merchant_id" has
"8" rows. So I want to know the number of rows of the "merchant_id" column for current day.
I think I should use count(*) in view with select statement but couldnt succeed about syntax. So I am open your suggestions thank you.
If I understood you correctly, a simple option would be
select merchant_id, count(*)
from os_txn.pay_link
where date_column = trunc(sysdate)
group by merchant_id;
presuming that date_column contains date only (i.e. for today, 8th of October 2022, that's its value - no hours, minutes or seconds).
If date column contains time component, again - a simple option - would be
select merchant_id, count(*)
from os_txn.pay_link
where trunc(date_column) = trunc(sysdate)
group by merchant_id;
If there's an index on date_column, then such a code wouldn't use it (unless it is a function-based index) so you'd rather modify it to
where date_column >= trunc(sysdate)
and date_column < trunc(sysdate + 1)
If that's not it, do post sample data and desired result.
This question already has answers here:
Counting number of records hour by hour between two dates in oracle
(5 answers)
Closed 8 years ago.
I'm trying to get the number of records created each hour but running into trouble with getting the results to group correctly. The idea is similiar to: How to count number of records per day?
However, the field I'm using to Group by is a Date-time field that records down to the second. This seems to be causing trouble with the Group By statement, as when the query returns, there is one row for each second in the specified time period, which is way too much data and will make the work I want to do with the results more difficult than it needs to be (if for no other reason that it's too many rows to fit on one Excel sheet).
My current code is:
SELECT ASD, Count(ASD) Num_CR
From DB_Name.Table_Name fcr
Where trunc(fcr.ASD) > to_Char('31-DEC-2014')
And trunc(fcr.ASD) < to_Char('31-JAN-2015')
And fcr.Status_Code = 'C'
Group By ASD
Order By ASD;
I've tried changing the Group By to be trunc(ASD), but that results in Toad throwing this error: ORA-00979: not a GROUP BY expression.
Thanks in advance!
When you use aggregation anything in the select and order by clauses must match what's in the group by clause:
SELECT trunc(ASD,'hh'), Count(ASD) Num_CR
From DB_Name.Table_Name fcr
Where trunc(fcr.ASD) > to_date('31-DEC-2014')
And trunc(fcr.ASD) < to_date('31-JAN-2015')
And fcr.Status_Code = 'C'
Group By trunc(ASD,'hh')
Order By trunc(ASD,'hh');
When applied to a date, trunc will truncate to the day. To truncate to a different level, specify the format of the element you'd like to truncate to as the second argument (e.g. 'hh' will truncate to the hour; 'mm' will truncate to the month).
SELECT to_char(ASD,'DD-MM-YYYY HH'), Count(ASD) Num_CR
From DB_Name.Table_Name fcr
Where trunc(fcr.ASD) > to_Char('31-DEC-2014')
And trunc(fcr.ASD) < to_Char('31-JAN-2015')
And fcr.Status_Code = 'C'
Group By to_char(ASD,'DD-MM-YYYY HH')
Order By to_char(ASD,'DD-MM-YYYY HH');
Quick and dirty :)
First off, why are you doing to_char on something that's already a string? Secondly, why are you trying to compare something that's (presumably) a DATE column to a string? That way lies madness...
I think you're after something like:
SELECT trunc(ASD, 'hh') asd_hr, Count(ASD) Num_CR
From DB_Name.Table_Name fcr
Where trunc(fcr.ASD) > to_date('31/12/2014', 'dd/mm/yyyy')
And trunc(fcr.ASD) < to_date('31/01/2015', 'dd/mm/yyyy')
And fcr.Status_Code = 'C'
Group By trunc(ASD, 'hh')
Order By trunc(ASD, 'hh');
Also worth noting, did you mean to exclude the last day of January from your query? If so, then fine, but if not, then perhaps you should change it to to_date('01/02/2015', 'dd/mm/yyyy')
i know this query is not right, and kind of jumbled. but it sort of displays what i want to do. what I'm trying to figure out is how to use the current date in a query. basically i want to subtract a stored date from the current date and if the result is < 30 do something. but i obviously don't know how to work with dates.... i am assuming that it shouldn't be a char value, but if i just use sys date oracle gives me a table error.
select e.STUDENT_ID
from COURSES c, CLASS_ENROLLMENT e, (SELECT TO_CHAR (SYSDATE, 'MM-DD-YYYY') as now
FROM DUAL) t
where t - c.END_DATE <= 30;
Assuming the rest of your query is correct this should solve your date problem:
select e.STUDENT_ID
from COURSES c, CLASS_ENROLLMENT e
where to_date(to_char(sysdate, 'DD-MON-RR')) - c.END_DATE <= 30;
You don't need to select sysdate from dual unless you just want to display it for one reason or another without querying something else. You can just specify it as sysdate as part of a any query anywhere.
The reason I converted it to a character and then to a date in this case is just to remove the time from sysdate, this way it will be 30 days from the given day, regardless of time. If you didn't care about time you could just say sysdate - c.end_date <=30
As an fyi - you probably need to add join conditions between the COURSES and CLASS_ENROLLMENT tables. The above should not result in a sql error and should do you want with respect to the date of the records, but it's unlikely to be what you want (in full).
I'm trying to select data from the previous day, and within a certain time frame, but I may be calculating my where clause incorrectly. I've tried switching times around etc. Basically I want to see all data from 6am-6pm, and then 7pm-3am, but My results aren't relecting such. I've tried between trunc(sysdate)-1 '00:00:00'<- but specifying the time, but I feel I'm not familiar enough with the function.
Note: DB is in UTC hence the 8/24.
Query:
--TOTAL PROBLEM STOW EVENTS
SELECT to_char(entry_date -8/24, 'DD-MON-YYYY HH12:MI:SSam'), OLD_BIN_ID old_bin, NEW_BIN_ID NEW_BIN, ISBN ASIN, QUANTITY
FROM BINEDIT_ENTRIES
WHERE ENTRY_DATE BETWEEN trunc(SYSDATE) -1 +4/24 AND trunc(SYSDATE) -1 +16/24
--where entry_date BETWEEN trunc(sysdate)-1 '00:00:00' AND trunc(sysdate)-1 '00:00:00.000'
AND substr(old_bin_id,1,2) = 'SC'
AND substr(new_bin_id,1,2) = 'vt'
GROUP BY ENTRY_DATE, OLD_BIN_ID, NEW_BIN_ID, ISBN, Quantity
ORDER BY QUANTITY DESC;
Result:
This appears to look correct, BUT when I change to look at other time range, it shows me this..
Second Query(Night Time):
--TOTAL PROBLEM STOW EVENTS
SELECT to_char(entry_date -8/24, 'DD-MON-YYYY HH12:MI:SSam'), OLD_BIN_ID old_bin, NEW_BIN_ID NEW_BIN, ISBN ASIN, QUANTITY
FROM BINEDIT_ENTRIES
WHERE ENTRY_DATE BETWEEN trunc(SYSDATE) -1 +16/24 AND trunc(SYSDATE) -1 +24/24
--where entry_date BETWEEN trunc(sysdate)-1 '00:00:00' AND trunc(sysdate)-1 '00:00:00.000'
AND substr(old_bin_id,1,2) = 'SC'
AND substr(new_bin_id,1,2) = 'vt'
GROUP BY ENTRY_DATE, OLD_BIN_ID, NEW_BIN_ID, ISBN, Quantity
ORDER BY QUANTITY DESC;
Result:
As you can see it doesn't appear to be looking at the where clause, I believe I have it formatted incorrectly, I typically just look at yesterday as a whole, and not a time range, so this is my first time attempting this. Thank you.
Effectively you're asking for everything between 8 AM and 4 PM local time. I say 8 AM since you're adding 16 hours in the WHERE clause and subtracting 8 in the SELECT clause.
If you meant to query between 7 PM local time and 3AM you would just add 8 hours in the WHERE clause:
WHERE ENTRY_DATE BETWEEN
trunc(SYSDATE) -1 +19/24 + 8/24
AND trunc(SYSDATE) -1 +27/24 + 8/24
I'm trying to get the products that havn't been made in the last 2 years. I'm not that great with SQL but here's what i've started with and it doesn't work.
Lets say for this example that my schema looks like this
prod_id, date_created, num_units_created.
I'll take any advice i can get.
select id, (select date from table
where date <= sysdate - 740) older,
(select date from table
where date >= sysdate - 740) newer
from table
where newer - older
I'm not being clear enough.
Basically i want all products that havn't been produced in the last 2 years. Whenever a product is produced, a line gets added. So if i just did sysdate <= 740, it would only give me all the products that were produced from the beginning up til 2 years ago.
I want all products that have been produced in the at least once, but not in the last 2 years.
I hope that clears it up.
GROUP BY with HAVING
select id, max(date)
from table
group by id
having max(date) < add_months(sysdate,-24)
I'd use SQL's dateadd function.
where date < dateadd(year,-2,getdate())
would be a where clause that would select records with date less than 2 years from the current date.
Hope that helps.
EDIT: If you want to go by days, use dateadd(d,-740,getdate())
Maybe something like this?
select id, date
from table
where date <= (sysdate - 730);
SELECT id FROM table WHERE date + (365*2) <= sysdate;
Use SELECT id, date, other, columns ... if you need to get them at the same time.