I am querying in my Table for Distinct Product Details. Now I have to filter Data based upon Date Column present in Table. The column having Dates have Data Type Varchar2. But I am not getting any result whereas Data is present in that Daterange. WEEK_DATE is my Date Column.
select distinct PRODUCT
from Table1
where WEEK_DATE between '12/31/2012' and '06/19/2017'
Some Sample Dates
2014-03-31
2014-09-01
2014-12-15
2014-12-22
You can try the following query :
select distinct PRODUCT from Table1
where cast(WEEK_DATE as date) between '12/31/2012' and '06/19/2017'
I would start by switching to standard date formats:
select distinct product
from Table1
where week_date >= '2012-12-31' and
week_date < '2017-06-20';
This will probably fix your problem. You query would return no rows if the comparisons were made as strings rather than dates.
Related
I have this table where I wanted to get the sum of the balance column but each item should have a unique value from the date column.
I'm trying to find all the rows in the balance column that are the same and have the same date, and then find the sum of the balance column.
sample data with unique dates:
balance
date
700
2021-07-03
700
2021-09-03
300
2021-09-04
500
2021-09-05
query used goes like:
select distinct a.balance, a.date from table a where a.date between (some date) and (some other date)
I have tried:
select sum(a.balance), a.date from table a where a.date between (some date) and (some other date) group by a.date
but the balance column shows the sum of all of the values in the column but shows distinct dates as shown below.
balance
date
893938
2021-07-03
858585
2021-09-03
728366
2021-09-04
665322
2021-09-05
I guess this is a job for a subquery. So let's take your problem step by step.
I'm trying to find all the rows in the balance column that are the same and have the same date,
This subquery gets you that, I believe. It give the same result as SELECT DISTINCT but it also counts the duplicated rows.
SELECT COUNT(*) num_same_rows, balance, date
FROM `table`
WHERE a.datum BETWEEN '2021-01-01' AND '2021-09-01'
GROUP BY date, balance
and then find the sum of the balance column.
Nest the subquery like this.
SELECT SUM(balance) summed_balance, date
FROM (
SELECT COUNT(*) num_same_rows, balance, date
FROM `table`
WHERE a.datum BETWEEN '2021-01-01' AND '2021-09-01'
GROUP BY date, balance
) subquery
GROUP BY date
If you only want to consider rows that actually have duplicates, change your subquery to
SELECT COUNT(*) num_same_rows, balance, date
FROM `table`
WHERE a.datum BETWEEN '2021-01-01' AND '2021-09-01'
GROUP BY date, balance
HAVING COUNT(*) >= 1
Be careful here, though. You didn't tell us what you want to do, only how you want to do it. The way you described your problem calls for discarding duplicated data before doing the sums. Is that right? Do you want to discard data?
2nd query you posted looks OK - sort of.
However, I think that it is the fact that date column contains not only date, but also time (as DATE datatype in Oracle does). Therefore, I'd say that it is trunc you need. Something like this:
SELECT TRUNC (a.datum) datum,
SUM (a.balance) sum_balance
FROM table_a a
WHERE a.datum BETWEEN DATE '2021-01-01' AND DATE '2021-09-01'
GROUP BY TRUNC (a.datum)
I have a table tk. It has a column effective_date with a data type of date. The table also has some other columns. What I want to do is query the table such that output contains all dates having same year but month should differ
I have tried with below query in SQL Server, but it's not returning the desired result:
select * tk_id
from tk
group by tk_id, YEAR(effective_date);
Are you looking for a where clause?
select *
from t
where effective_date >= '2019-01-01' and effective_date < '2020-01-01'
I have a table that I join to a calendar table, but I need to populate / create new row for each month between. I.e.
Date GIS CODE Running Total Open
2007-04-30 BEJOORDING, 6566, WESTERN AUSTRALIA 5
2007-09-30 BEJOORDING, 6566, WESTERN AUSTRALIA 6
I need some sort of query that can create end of month date rows between 2007-04-30 and 2007-09-30.
I will then need to fill down the blanks with the most recent fields so I will have a timeline for all end of month values.
I am assuming I will have to use some sort of CTE table but I am not the best at this / understand exactly how they work.
Any help will be greatly appreciated.
This CTE query will give you a table with all end-of-month values between the first and last ones in your table (I've assumed called log). You can then LEFT JOIN that to the table to create rows for all months in the timespan.
WITH CTE AS (
SELECT MIN(Date) AS [Date], MAX(Date) AS Max_Date FROM log
UNION ALL
SELECT EOMONTH(DATEADD(MONTH, 1, [Date])), Max_Date
FROM CTE
WHERE Date < Max_Date
)
SELECT Date
FROM CTE
Demo on SQLFiddle
Can be achieved with a RIGHT JOIN to a subquery against the calendar table using the EOMONTH() function
Say I have a query that selects all the sales from the past 90 days. I want to be able to isolate certain rows on a case/when basis, and can't quite figure out how to do this. The case statement is depending on dates, so: If the date falls between 3/1 and 5/31, then I want to select the sales from any month ends (3/31, 4/30, 5/31 and TODAY) otherwise, if the date is not between 3/1 and 5/31, then I just want to select the past 3 month-ends.
What I tried so far is inserting a Case/When statement in the WHERE clause, but that doesn't seem kosher. Is there another way to go about this?
For reference, the #monthends table contains the following single column:
monthends
2019-03-31
2019-02-28
2019-01-31
and the #insideRule table contains similarly:
insiderRule
2019-03-31
2019-04-22
The query:
SELECT *
FROM mytable
WHERE asofdate IN
CASE WHEN asofdate BETWEEN '3-1-2019' AND '5-31-2019' THEN
(SELECT * FROM #insideRule)
ELSE
(SELECT * FROM #monthends)
END
When I execute the above, I get syntax errors around "IN"
You want exists not case expression :
IF EXISTS (SELECT 1 FROM mytable WHERE aasofdate BETWEEN '2019-03-01' AND '2019-05-31')
SELECT *
FROM #insideRule
ELSE
SELECT *
FROM #monthends
I am thinking you want something like this:
SELECT ir.*
FROM #insideRule ir
WHERE getdate() >= '2019-03-01' AND
getdate() < '2019-06-01'
UNION ALL
SELECT me.*
FROM #monthends me
WHERE getdate() < '2019-03-01' OR
getdate() >= '2019-06-01';
This assumes that the two tables have the same columns in the same order with compatible types.
I am running a T-SQL query on SQL Server 2014. The query and its output are given below:
Use MyDatabase
SELECT
ID,
ArrivalMonth,
DateOfBirth
FROM [View1]
WHERE [ArrivalMonth] between '2017-01-01' and '2018-05-01'
The output of the above query looks like this (extract):
ID ArrivalMonth DateOfBirth
101 2017-01-01 1974-05-30
105 2017-05-01 1967-03-05
125 2017-05-01 NULL
... ... ...
I need a T-SQL query to give me the following output (based on the output above):
ArrivalMonth Number_Of_Bookings Number_Of_DOB_Captured
2017-01-01 130 110
2017-02-01 90 85
... ... ...
2018-05-01 115 70
The first column is the ArrivalMonth. Number_Of_Bookings is the count of number of records from the above query. Number_Of_DOB_Captured is the count of DateOfBirth which is NOT NULL.
I think may be the Pivot query might be the solution but I am confused as to how to execute it in this scenario.
You may left join a calendar table containing all the months to your current table, and then aggregate:
WITH months AS (
SELECT '2017-01-01' AS month UNION ALL
SELECT '2017-02-01' UNION ALL
...
SELECT '2017-12-01'
)
SELECT
m.month,
COUNT(*) AS Number_Of_Bookings,
COUNT(v.DateOfBirth) AS Number_Of_DOB_Captured
FROM months m
LEFT JOIN [View1] v
ON m.month = v.ArrivalMonth
WHERE
v.ArrivalMonth BETWEEN '2017-01-01' AND '2018-05-01'
GROUP BY
m.month;
The calendar table may be necessary here if it could be possible that, for some reason, a given arrival month have no data associated with it in your view. If you are certain that the view would always contain data for every month, then you may aggregate directly on your table without joining.
you can use count(Number_Of_Bookings), count(DateOfBirth) and group by ArrivalMonth
So you count the number of non null values for each different ArrivalMonth.
the query :
Select ArrivalMonth
, count(Number_Of_Bookings)
, count(DateOfBirth)
FROM [View1]
WHERE [ArrivalMonth] between '2017-01-01' and '2018-05-01'
group by ArrivalMonth