select CASE
WHEN (shipment_date >=((to_char(shipment_date, 'dd-Mon-yyyy 08:00')::timestamp)) and shipment_date < ((to_char(shipment_date, 'dd-Mon-yyyy 20:00')::timestamp )))
THEN to_char(shipment_date, 'dd/MM/yyyy 08:00')
WHEN (shipment_date >=((to_char(shipment_date, 'dd-Mon-yyyy 20:00')::timestamp)) and shipment_date < ((to_char(shipment_date + interval '1' day, 'dd-Mon-yyyy 08:00')::timestamp )))
THEN to_char(shipment_date, 'dd/MM/yyyy 20:00')
END as shipment_date_sort,
COUNT(lotnumber)
from shipping.picklist_lots
inner join shipping.picklist on picklist_lots.picklist_id = picklist.picklist_id
where shipment_date >= '12/23/2014' and shipment_date < '12/24/2014'
GROUP BY shipment_date_sort
it doesnt give me the result which the shipment date between 24/12/2014 00:00 and 24/12/2014 08:00
i need it
where shipment_date >= '12/23/2014' and shipment_date < '12/24/2014'
Add a time value. According to your datetime value, 24/12/2014 00:00, it should be in format (dd/MM/yyyy 00:00)
where shipment_date >= '23/12/2014' and shipment_date <= '24/12/2014 23:59'
Based on logical query processing, you cannot use alias of your SELECT statement in group by because SELECT happens after GROUP BY so you need to duplicate your CASE statement into your GROUP BY part.
LOGICAL QUERY PROCESSING
Related
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)
Given:
INSERT INTO EP_ACCESS (PROFILE_ID, EPISODE_ID, START_TIMESTAMP, DISCONNECT_TIMESTAMP)
VALUES ('1', '1', TO_DATE('2020-01-01 00:00:01','yyyy/mm/dd hh24:mi:ss'), TO_DATE('2020-01-01 00:00:02','yyyy/mm/dd hh24:mi:ss'));
How can I select those who start_timestamp is in 2020?
You would use:
where start_timestamp >= date '2020-01-01' and
start_timestamp < date '2021-01-01'
Of course, you can use a timestamp literal if you prefer typing longer strings.
There are several options.
1 - Use BETWEEN
SELECT *
FROM EP_ACCESS
WHERE START_TIMESTAMP BETWEEN TO_DATE('2020-01-01 00:00:00', 'YYYY-MM-DD HH24:MI:SS')
AND TO_DATE('2020-12-31 23:59:59', 'YYYY-MM-DD HH24:MI:SS')
or
SELECT *
FROM EP_ACCESS
WHERE START_TIMESTAMP BETWEEN DATE '2020-01-01'
AND DATE '2021-01-01' - INTERVAL '1' SECOND
2 - Use EXTRACT
SELECT *
FROM EP_ACCESS
WHERE EXTRACT(YEAR FROM START_TIMESTAMP) = 2020
3 - Use TRUNC
SELECT *
FROM EP_ACCESS
WHERE TRUNC(START_TIMESTAMP, 'YYYY') = DATE '2020-01-01'
Of these options, BETWEEN will probably provide the best performance as the other two require executing a function against the START_TIMESTAMP field in every row in the table.
create table Minutes(Minute varchar2(5));
create table orders(OrderID varchar(54), Orderplaced TIMESTAMP ,
Ordercompleted TIMESTAMP);
insert into orders
VALUES
('#1',TO_TIMESTAMP('2018-01-15 00:12:20', 'YYYY-MM-DD HH24:MI:SS'),
TO_TIMESTAMP( '2018-01-15 00:12:42', 'YYYY-MM-DD HH24:MI:SS'));
insert into orders
VALUES
('#2',TO_TIMESTAMP('2018-01-15 01:15:20', 'YYYY-MM-DD HH24:MI:SS'),
TO_TIMESTAMP( '2018-01-15 02:56:20', 'YYYY-MM-DD HH24:MI:SS'));
insert into orders
VALUES
('#3',TO_TIMESTAMP('2018-01-15 01:20:20', 'YYYY-MM-DD HH24:MI:SS'),
TO_TIMESTAMP( '2018-01-15 03:00:20', 'YYYY-MM-DD HH24:MI:SS'));
insert into Minutes (Minute)
select to_char(trunc(sysdate) + interval '1' minute * (level - 1),
'HH24:MI') as minute
from dual
connect by level <= 1440;
select a.Minute, nvl(count(b.OrderID),0) as orders
from Minutes a
left join orders b
on a.Minute between to_char(cast( b.Orderplaced as date),'hh24:mi:ss') and
to_char(cast( b.Ordercompleted as date),'hh24:mi:ss')
where
a.Minute <= (select to_char(cast (sysdate as date),'hh24:mi:ss') from dual)
group by a.Minute
order by 1;
The processing time is too long and the result is undelivered as well.
It works fine with Integration testing. Please have a look once.
I ran your code, works OK for those test tables. However, I'd suggest a slight modification.
you don't have to CAST values from ORDERS table
Even worse is to CAST SYSDATE AS DATE - SYSDATE is a function that
returns DATE data type anyway
there's no need to select it from DUAL - you can use it "as is"
COUNT will return 0 even if there's nothing to return, so you can
omit NVL function
Here's the modified SELECT statement:
SELECT a.minute, COUNT (b.orderid) AS orders
FROM minutes a
LEFT JOIN orders b
ON a.minute BETWEEN TO_CHAR (b.orderplaced, 'hh24:mi:ss')
AND TO_CHAR (b.ordercompleted, 'hh24:mi:ss')
WHERE a.minute <= TO_CHAR (SYSDATE, 'hh24:mi:ss')
GROUP BY a.minute
ORDER BY 1;
What does it mean for you? I don't know. As I said, it works OK. Explain plan says that it performs full table scan of both MINUTES and ORDERS tables, so - if there's zillion rows in those tables, it might make a difference.
Consider creating indexes on columns you use; as you extract only time from the ORDERS table, those two would be function-based ones.
CREATE INDEX i1_min
ON minutes (minute);
CREATE INDEX i2_plac
ON orders (TO_CHAR (orderplaced, 'hh24:mi:ss'));
CREATE INDEX i3_compl
ON orders (TO_CHAR (ordercompleted, 'hh24:mi:ss'));
Then try again; hopefully, you'll see some improvement.
You said you're trying to get "the number of orders count per minute on a particular day", and later clarified that should be the current day. Your query is only looking at times - converted to strings - so it's looking at the same time slot across all records in your orders table. Really you want to restrict the found orders to the day you're interested in. Presumably your UAT environment just has much more data, across more days, than you created in IT.
You could just add a filter to restrict it to orders placed today:
select a.Minute, nvl(count(b.OrderID),0) as orders
from Minutes a
left join orders b
on a.Minute between to_char(cast( b.Orderplaced as date),'hh24:mi:ss') and
to_char(cast( b.Ordercompleted as date),'hh24:mi:ss')
and b.Orderplaced > trunc(sysdate) -- added this filter
where
a.Minute <= (select to_char(cast (sysdate as date),'hh24:mi:ss') from dual)
group by a.Minute
order by 1;
though you don't need any of the casting or subquery or nvl(), as #Littlefoot mentioned, so can simplify that a bit to:
select a.Minute, count(b.OrderID) as orders
from Minutes a
left join orders b
on a.Minute between to_char(b.Orderplaced,'hh24:mi:ss') and
to_char(b.Ordercompleted,'hh24:mi:ss')
and b.Orderplaced > trunc(sysdate)
where a.Minute <= to_char(sysdate,'hh24:mi:ss')
group by a.Minute
order by 1;
You're still doing a lot of conversions and comparing strings rather than dates/timestamps. It might be simpler to generate the minutes for that specific day in a CTE instead of a permanent table, and join using those values as well, without doing any further data conversions
with minutes (minute) as (
select cast(trunc(sysdate) as timestamp) + interval '1' minute * (level - 1)
from dual
connect by level <= (sysdate - trunc(sysdate)) * 1440
)
select to_char(m.minute, 'HH24:MI') as minute, count(o.orderid) as orders
from minutes m
left join orders o
on o.orderplaced >= cast(trunc(sysdate) as timestamp)
and o.orderplaced <= m.minute
and (o.ordercompleted is null or o.ordercompleted >= m.minute)
group by m.minute
order by m.minute;
I've included rows with no ordercompleted date, though it isn't clear if you want to count those.
You could also join on just the orderplaced date being today, which looks a bit odd, and do a conditional count:
with minutes (minute) as (
select cast(trunc(sysdate) as timestamp) + interval '1' minute * (level - 1)
from dual
connect by level <= (sysdate - trunc(sysdate)) * 1440
)
select to_char(m.minute, 'HH24:MI') as minute,
count(case when o.orderplaced <= m.minute
and (o.ordercompleted is null or o.ordercompleted >= m.minute)
then o.orderid end) as orders
from minutes m
left join orders o
on o.orderplaced >= cast(trunc(sysdate) as timestamp)
group by m.minute
order by m.minute;
Either way this assumes you have an index on orderplaced.
Look at the execution plans for your original query and these options and any others suggested, and test with realistic data, to see which is the best approach for your actual data and requirements.
To look for records for a different, full, day, change the sysdate references to a date/timestamp literal like timestamp '2018-01-15 00:00:00' or something relative like trunc(sysdate-1), and include an end-date on the orderplaced; and remove the end-time filter in the CTE; e.g.:
with minutes (minute) as (
select cast(trunc(sysdate - 1) as timestamp) + interval '1' minute * (level - 1)
from dual
connect by level <= 1440
)
select to_char(m.minute, 'HH24:MI') as minute, count(o.orderid) as orders
from minutes m
left join orders o
on o.orderplaced >= cast(trunc(sysdate - 1) as timestamp)
and o.orderplaced < cast(trunc(sysdate - 1) as timestamp) + interval '1' day
and o.orderplaced <= m.minute
and (o.ordercompleted is null or o.ordercompleted >= m.minute)
group by m.minute
order by m.minute;
or
with minutes (minute) as (
select timestamp '2018-01-15 00:00:00' + interval '1' minute * (level - 1)
from dual
connect by level <= 1440
)
select to_char(m.minute, 'HH24:MI') as minute, count(o.orderid) as orders
from minutes m
left join orders o
on o.orderplaced >= timestamp '2018-01-15 00:00:00'
and o.orderplaced < timestamp '2018-01-16 00:00:00'
and o.orderplaced <= m.minute
and (o.ordercompleted is null or o.ordercompleted >= m.minute)
group by m.minute
order by m.minute;
If you want to include rows where the placed and completed times are in the same minute, but still otherwise want to exclude rows from the minute they were placed, you'll need a bit more logic; maybe something like:
with minutes (minute) as (
select timestamp '2018-01-15 00:00:00' + interval '1' minute * (level - 1)
from dual
connect by level <= 1440
)
select to_char(m.minute, 'HH24:MI') as minute, count(o.orderid) as orders
from minutes m
left join orders o
on o.orderplaced >= timestamp '2018-01-15 00:00:00'
and o.orderplaced < timestamp '2018-01-16 00:00:00'
and ((trunc(o.ordercompleted, 'MI') > trunc(o.orderplaced, 'MI')
and o.orderplaced <= m.minute)
or (trunc(o.ordercompleted, 'MI') = trunc(o.orderplaced, 'MI')
and o.orderplaced < m.minute + interval '1' minute))
and (o.ordercompleted is null or o.ordercompleted >= m.minute)
group by m.minute
order by m.minute;
If you need further refinements you'll need to modify the clauses to suit, which might need a bit of experimentation.
I am getting data from table for certain date range, but the query not getting data for today's date. Why does this happen?
select *
from mytable
where action_date >= to_date('01/07/2015', 'DD/MM/YYYY')
and action_date <= to_date('22/07/2015', 'DD/MM/YYYY');
Result is not showing 22/07/2015 data.
Edit:
ACTION_DATE TIMESTAMP(6)
Sample date in that column :
22/07/15 12:47:18.000000000 PM
Try to add the time part:
select *
from mytable
where action_date >= to_date('01/07/2015 00:00:00,000000000', 'DD/MM/YYYY HH24:MI:SS,FF9')
and action_date <= to_date('22/07/2015 23:59:00,999999999', 'DD/MM/YYYY HH24:MI:SS,FF9');
If you only give the date part, the time part is automatically added with the actual time, so if the time part is later you do not get the row.
to_date('22/07/2015', 'DD/MM/YYYY')
this will equal to July, 22 2015 00:00:00
From Oracle document:
Oracle Database stores time in 24-hour format—HH:MI:SS. By default,
the time in a date field is 00:00:00 A.M. (midnight) if no time
portion is entered.
so action_date <=/>= will compare the data+time.
For the correct result add required time to the date field.
eg:
to_date('22/07/2015 12:56', 'DD/MM/YYYY HH24:MI')
it is because you are converting to_date in date, that results in 22/2/2015 00:00:00 and your action_date time for 22/7/2015 is with some time appended. you need to convert action_date in date.
select * from mytable where cast( action_date >= to_date('01/07/2015', 'DD/MM/YYYY') and cast( action_date as date) <= to_date('22/07/2015', 'DD/MM/YYYY');
I have changed the query by this way, its working as expected.
SELECT *
FROM mytable
WHERE action_date >= to_date('01/07/2015', 'DD/MM/YYYY')
AND TRUNC(to_date(TO_CHAR(action_date, 'DD/MM/YYYY'), 'DD/MM/YYYY')) <= TRUNC(to_date('22/07/2015', 'DD/MM/YYYY'));
You can use the below query.
select *
from mytable
where trunc(action_date) >= to_date('01/07/2015', 'DD/MM/YYYY')
and trunc(action_date) <= to_date('22/07/2015', 'DD/MM/YYYY');
This will perform a date-level comparison rather than one based on the date and exact time.
This is better than the (original) accepted answer, which misses a small period of time after 23:59.
select *
from mytable
where action_date >= to_date('01/07/2015', 'DD/MM/YYYY')
and action_date < to_date('22/07/2015', 'DD/MM/YYYY') + 1;
Or alternatively if you don't like the +1:
select *
from mytable
where action_date >= to_date('01/07/2015', 'DD/MM/YYYY')
and action_date < to_date('23/07/2015', 'DD/MM/YYYY');
The easiest solution is to use '< nextday' instead of boring '<= 23:59:59'.
select * from mytable
where action_date >= to_date('01/07/2015', 'DD/MM/YYYY')
and action_date < to_date('23/07/2015', 'DD/MM/YYYY');
Have a SQL query on Oracle 11g which returns the count of whether a record having certain ID and status exists within +/- 15 minutes range in a table.
Now I wish to ignore the current date by adding a condition like AND TIMESTAMP < trunc(sysdate).
However, for cases where the record exists in todays date I wish to ignore the date comparison check in the query '2010-07-20 19:15:11' >= TO_CHAR(TIMESTAMP - (1/1440*15), 'YYYY-MM-DD HH24:MI:SS')
AND '2010-07-20 19:15:11' <= (TO_CHAR(TIMESTAMP + (1/1440*15), 'YYYY-MM-DD HH24:MI:SS'))
SELECT count(1) AS COUNT
FROM MASTER_ONE
WHERE ID='123' AND STATUS= 'ACTIVE'
AND '2010-07-20 19:15:11' >= TO_CHAR(TIMESTAMP - (1/1440*15), 'YYYY-MM-DD HH24:MI:SS')
AND '2010-07-20 19:15:11' <= (TO_CHAR(TIMESTAMP + (1/1440*15), 'YYYY-MM-DD HH24:MI:SS'))
UNION ALL
SELECT count(1) AS COUNT
FROM MASTER_TWO
WHERE ID='321' AND STATUS= 'ACTIVE'
AND '2010-07-20 19:15:11' >= TO_CHAR(TIMESTAMP - (1/1440*15), 'YYYY-MM-DD HH24:MI:SS')
AND '2010-07-20 19:15:11' <= (TO_CHAR(TIMESTAMP + (1/1440*15), 'YYYY-MM-DD HH24:MI:SS'))
How do I do this?
The first problem with your query is that you're doing a string comparison on the date. Use to_date instead of to_char and let Oracle help you out.
SELECT
to_date('2010-07-20 19:15:11', 'YYYY-MM-DD HH24:MI:SS') AS orig_date
, to_date('2010-07-20 19:15:11', 'YYYY-MM-DD HH24:MI:SS') - 1 / 24 / 4 AS fifteen_min_prior
, to_date('2010-07-20 19:15:11', 'YYYY-MM-DD HH24:MI:SS') + 1 / 24 / 4 AS fifteen_min_after
FROM dual;
Output:
ORIG_DATE FIFTEEN_MIN_PRIOR FIFTEEN_MIN_AFTER
------------------------- ------------------------- -------------------------
20-JUL-10 07:15:11 PM 20-JUL-10 07:00:11 PM 20-JUL-10 07:30:11 PM
Then use can use those dates in a BETWEEN condition in the predicate. See Oracle date "Between" Query.
I'm not quite clear what you mean by "However, for cases where the record exists in todays date I wish to ignore the date comparison check in the query." You'd just written that you want to exclude values from the current day. Either you're excluding today's records or you're not.
Ok, you can try something like this, if I understood you correctly:
SELECT count(1) AS COUNT
FROM MASTER_ONE
WHERE ID='123' AND STATUS= 'ACTIVE'
AND (timestamp > trunc(sysdate)
OR (timestamp < trunc(sysdate)
AND timestamp BETWEEN to_date(:yourInputDate,'DD/MM/YYYY HH24:MI:SS') - (1/1440*15)
AND to_date(:yourInputDate,'DD/MM/YYYY HH24:MI:SS') + (1/1440*15)))
UNION ALL
SELECT count(1) AS COUNT
FROM MASTER_TWO
WHERE ID='321' AND STATUS= 'ACTIVE'
AND (timestamp > trunc(sysdate)
OR (timestamp < trunc(sysdate)
AND timestamp BETWEEN to_date(:yourInputDate,'DD/MM/YYYY HH24:MI:SS') - (1/1440*15)
AND to_date(:yourInputDate,'DD/MM/YYYY HH24:MI:SS') + (1/1440*15)))
In this Select, you only apply the 15 minutes condition if your timestamp column has a date prior to sysdate.