I have three tables tblinventory, tbldisbursement, tblmissinglost. I want to calculate the total stock of books after deducting disbursements and returns for the current day.
select bn.No_of_books_procured
- (count(mis.Unr_ret_donated_discareded))
- (count(case when dis.dis_disbursed_return = 1
then dis.dis_disbursed_return end ) )as Stock
from tbl_inventorylibbooks bn
right
join tbl_limgt_booksmissing_lost_adjust mis
on mis.Book_Name_missingbk = bn.Id_inventory
left
join tbllibmange_disbursement dis
on dis.dis_book_name_fk_id = bn.Id_inventory
where bn.Id_inventory = 14
On few entries I get the correct answer and the other results entries the query is showing wrong answers. Can you kindly provide a solution for this?
tblinventory
id Name
----------
1 xyz
consider total books procured=10
tbldisbursement
**booknameFK disbursed/returned**
----------------------------------------
Booknafk1 1
Booknafk2 0
Booknafk3 1
where 1=disbursed and 0=returned
tblmissinglost
**id BooknameFk missng**
----------------------------------------
1 Booknafk1 lost
2 Booknafk1 lost
----------------------------------------
Also check this query
select (bn.No_of_books_procured) as procured,
count(distinct mis.Id_missingbooks_pid) as missing,
count( case when bs.dis_disbursed_return!=0 then
bs.dis_disbursed_return end) as disbursed
from tbl_limgt_booksmissing_lost_adjust mis
join tbllibmange_disbursement bs on
mis.book_name_missingbk=bs.dis_book_name_fk_id
join tbl_inventorylibbooks bn on bs.dis_book_name_fk_id=bn.Id_inventory
where bn.Id_inventory=14 group by bn.Id_inventory
I am getting duplicate entries
Select Sum(BookCount) Stock from (
Select Name , 1 BookCount from tblinventory
Union
select booknameFK Name , Case when disbursedORreturned=1 then -1 else 1 end as BookCount from tbldisbursement
Union
select booknameFK Name , -1 BookCount from tblmissinglost
)T
This will give you total number of books in stock as of now.
I'm creating a simple database which will allow me to track snooker results, producing head to head results between players. Currently I have 3 tables: (Player, Fixture, Result)
PlayerID PlayerName
1 Michael Abraham
2 Ben Mullen
3 Mark Crozier
FixtureID Date TableNo Group
1 07/12/2015 19:00:00 12 0
2 08/12/2015 12:00:00 9 0
ResultID FixtureID PlayerID FramesWon
1 1 1 3
2 1 3 1
3 2 1 2
4 2 3 5
As you can see in the Result table, Player1 has played Player3 two times, with Player1 winning the first match 3-1, and Player3 winning the second match 5-2. I would like a query which returns the total number of matches won between the two players. In this case the expected output should be:
PlayerID MatchesWon
1 1
3 1
Any help would be appreciated - I'm not even sure if this can be achieved via a query
I agree using windowing function would be best way to go if available (SQL Server for example)
Might be possible with a straight SQL method this way (given that the one having most wins in a "fixture" is the match winner)
SELECT PlayerId, FixtureID, Count(*) As MatchesWon
FROM Result r
WHERE r.Frameswon = (SELECT MAX(frameswon) FROM Result r2
WHERE
r.FixtureId = r2.FixtureId)
GROUP BY PlayerID,FixtureId
OR if can leave out the fixtureId, and filter for just the 2 players something like this one as well. with data given above should bring the sample results.
SELECT PlayerId, MatchesWon
FROM
(
SELECT FixtureID,PlayerId, Count(*) As MatchesWon
FROM Result r
WHERE r.Frameswon = (SELECT max(frameswon) FROM Result r2
WHERE
r.FixtureId = r2.FixtureId)
GROUP BY FixtureId,PlayerID
) s
WHERE
PlayerID IN (1,3)
Perhaps this would work for you:
select playerid, count(*) as matcheswon
from result as r1
where frameswon =
(
select max(frameswon)
from result as r2
where r2.fixtureid = r1.fixtureid
)
group by playerid
In a fiddle here: http://sqlfiddle.com/#!9/60821/2
This is the alternative you can try.
SELECT r.PlayerID, COUNT(r.PlayerID)
FROM (
SELECT FixtureID, MAX(FramesWon) AS FramesWon
FROM `result`
GROUP BY FixtureID
) win
INNER JOIN result r ON win.FixtureID = r.FixtureID AND win.FramesWon = r.FramesWon
GROUP By r.PlayerID
I have a table, it similar with this table
ID Name Age Status
1 John 32 Life
2 Andre 99 Life
3 Anton 89 Dead
4 Maria 99 Life
5 Mario 13 Life
6 Santi 89 Dead
7 Anggy 56 Dead
8 Amir 99 Life
I want to do something like this
1. Group rows by status (Life)
2. Get the max Age from that group (99) (only the max number need)
4. Make new group by age and sort it by ID.
The result will be
8 Amir 99 Life
4 Maria 99 Life
2 Andre 99 Life
Any way to use only 1 line query for that job? with some (php) data procesing its not to hard to get the result i want, but i want to make code as clean as posible, so maybe i can do that 3 step in just a single query?
I think the right logic is:
select t.id, t.name, t.age, t.status
from table t join
(select max(t2.age) from table t2 where t2.status = 'life') m
on t.age = m.age
where t.status = 'life'
order by id desc;
select id, name, age, status
from thetable
where age =
(select max(age)
from thetable
where status="Life"
)
where status="Life"
order by id desc
Use the below mentioned query :
SELECT
*
FROM
t4
CROSS JOIN
(SELECT
MAX(`age`) AS 'age'
FROM
t4
WHERE
`status` = 'Life') AS t5
WHERE
`status` = 'Life' AND t4.`age` = t5.age
ORDER BY `id` DESC;
Check SQLFiddle
How can I write this.. I have table 'Company' with a column 'Size'. The size references enums. I need to display the average company size as alias AS 'AverageEstimatedCompanySize' by substituting column 'Size' when column 'Size' is:
1 = 15
2 = 30
3 = 50
4 = 100
5 = 250
In other words, my table shows company size as either 1, 2, 3, 4 or 5. While 1 is actually a company size of 15.
This is all part of a bigger query:
SELECT COUNT(DISTINCT(ID)) AS 'Total # of Opps', AVG(Size*?) AS 'AverageEstimatedCompanySize'
FROM persontable AS POJT INNER JOIN opportunity
ON POJT.ID = opportunity.id
WHERE opportunity.TimeStamp >= '2012-01-01' AND opportunity.TimeStamp <= '2012-12-31' AND POJT.JobTitleID IN
(SELECT Id
FROM job
WHERE CategoryID IN
(SELECT id
FROM job_category
WHERE name IN ('Sc', 'Ma', 'Co', 'En', 'Tr')))
Sounds like something solvable with a case statement. The following is untested but should point you in the right direction.
SELECT
COUNT(DISTINCT(ID)) AS 'Total # of Opps',
AVG(
CASE Size
WHEN 1 THEN 15
WHEN 2 THEN 30
WHEN 3 THEN 50
WHEN 4 THEN 100
WHEN 5 THEN 250
END
) AS 'AverageEstimatedCompanySize'
FROM persontable AS POJT INNER JOIN opportunity
ON POJT.ID = opportunity.id
WHERE opportunity.TimeStamp >= '2012-01-01' AND opportunity.TimeStamp <= '2012-12-31' AND POJT.JobTitleID IN
(SELECT Id
FROM job
WHERE CategoryID IN
(SELECT id
FROM job_category
WHERE name IN ('Sc', 'Ma', 'Co', 'En', 'Tr')))
I'm thinking that one approach might be to modify the query to JOIN to the Company table appropriately (that's something you'll need to work out), and then modify the AVG statement:
... AVG(CASE `Size`
WHEN 1 THEN 15
WHEN 2 THEN 30
WHEN 3 THEN 50
WHEN 4 THEN 100
WHEN 5 THEN 250 END) AS 'AverageEstimatedCompanySize'
where Size is from the Company table.
Now, a more dynamic approach would be to create a new field, or even a new table, that maps those sizes and just JOIN the Company table and say the new table in the query and just grab the appropriate field per row then. That would get rid of the CASE statement.
I have a record set for inspections of many pieces of equipment. The four cols of interest are equip_id, month, year, myData.
My requirement is to have EXACTLY ONE record per month for each piece of equipment.
I have a query that makes the data unique over equip_id, month, year. So there is no more than one record for each month/year for a piece of equipment. But now I need to simulate data for the missing month. I want to simply go back in time to get the last piece of my data.
So that may seem confusing, so I'll show by example.
Given this sample data:
equip_id month year myData
-----------------------------
1 1 2010 500
1 2 2010 600
1 5 2010 800
2 2 2010 300
2 4 2010 400
2 6 2010 500
I want this output:
equip_id month year myData
-----------------------------
1 1 2010 500
1 2 2010 600
1 3 2010 600
1 4 2010 600
1 5 2010 800
2 2 2010 300
2 3 2010 300
2 4 2010 400
2 5 2010 400
2 6 2010 500
Notice that I'm filling in missing data with the data from the month (or two months etc.) before. Also note that if the first record for equip 2 is in 2/2010 than I don't need a record for 1/2010 even though I have one for equip 1.
I just need exactly one record for each month/year for each piece of equipment. So if the record does not exist I just want to go back in time and grab the data for that record.
Thanks!
By no means perfect:
SELECT equip_id, month, mydata
FROM (
SELECT equip_id, month, mydata FROM equip
UNION ALL
SELECT EquipNum.equip_id, EquipNum.Num,
(SELECT Top 1 mydata
FROM equip
WHERE equip.month<n.num And equip.equip_id=equipnum.equip_id
ORDER BY equip.month desc) AS Data
FROM
(SELECT e.equip_id, n.Num
FROM
(SELECT DISTINCT equip_id FROM equip) AS e,
Numbers AS n) AS EquipNum
LEFT JOIN equip
ON (EquipNum.Num = equip.month)
AND (EquipNum.equip_id = equip.equip_id)
WHERE EquipNum.Num<DMax("month","equip")
AND
(SELECT top 1 mydata
FROM equip
WHERE equip.month<n.num And equip.equip_id=equipnum.equip_id
ORDER BY equip.month desc) Is Not Null
AND equip.equip_id Is Null AND equip.Month Is Null) AS x
ORDER BY equip_id, month
For this to work you need a Numbers table, in this case it needs only hold integers from 1 to 12. The numbers table I used is called Numbers and the field is called Num.
EDIT re years comment
SELECT equip_id, year, month, mydata
FROM (
SELECT equip_id, year, month, mydata FROM equip
UNION ALL
SELECT en.equip_id, en.year, en.Num, (SELECT Top 1 mydata
FROM equip e
WHERE e.month<n.num And e.year=en.year And e.equip_id=en.equip_id
ORDER BY e.month desc) AS Data
FROM (SELECT e.equip_id, n.Num, y.year
FROM
(SELECT DISTINCT equip_id FROM equip) AS e,
Numbers AS n,
(SELECT DISTINCT year FROM equip) AS y) AS en
LEFT JOIN equip AS e ON en.equip_id = e.equip_id
AND en.year = e.year
AND en.Num = e.month
WHERE en.Num<DMax("month","equip") AND
(SELECT Top 1 mydata
FROM equip e
WHERE e.month<n.num And e.year=en.year And e.equip_id=en.equip_id
ORDER BY e.month desc) Is Not Null
AND e.equip_id Is Null
AND e.Month Is Null) AS x
ORDER BY equip_id, year, month
I've adjusted to account for year and month... The primary principles remain the same as the original queries presented where just the month. However, for applying a month and year, you need to test for the SET of YEAR + MONTH, ie: what happens if Nov/2009, then jump to Feb/2010, You can't rely on just a month being less than another, but the "set". So, I've apply the year * 12 + month to prevent a false value such as Nov=11 + year=2009 = 2009+11 = 2020, then Feb=2 of year=2010 = 2010+2 = 2012... But 2009*12 = 24108 + Nov = 11 = 24119 compared to 2010*12 = 24120 + Feb =2 = 24122 -- retains proper sequence per year/month combination. The rest of the principles apply. However, one additional, I created a table to represent the span of years to consider. For my testing, I added a sample Equip_ID = 1 entry with a Nov-2009, and Equip_ID = 2 with a Feb-2011 entry and the proper roll-over works too. (Table C_Years, column = year and values of 2009, 2010, 2011)
SELECT
PYML.Equip_ID,
PYML.Year,
PYML.Mth,
P1.MyData
FROM
( SELECT
PAll.Equip_ID,
PAll.Year,
PAll.Mth,
( SELECT MAX( P1.Year*12+P1.Mth )
FROM C_Preset P1
WHERE PAll.Equip_ID = P1.Equip_ID
AND P1.Year*12+P1.Mth <= PAll.CurYrMth) as MaxYrMth
FROM
( SELECT
PYM1.Equip_ID,
Y1.Year,
M1.Mth,
Y1.Year*12+M1.Mth as CurYrMth
FROM
( SELECT p.equip_id,
MIN( p.year*12+p.mth ) as MinYrMth,
MAX( p.year*12+p.mth ) as MaxYrMth
FROM
C_Preset p
group by
1
) PYM1,
C_Years Y1,
C_Months M1
WHERE
Y1.Year*12+M1.Mth >= PYM1.MinYrMth
AND Y1.Year*12+M1.Mth <= PYM1.MaxYrMth
) PAll
) PYML,
C_Preset P1
WHERE
PYML.Equip_ID = P1.Equip_ID
AND PYML.MaxYrMth = P1.Year*12+P1.Mth
If this is going to be a repetative thing/report, I would just create a temporary table with 12 months -- then use that as the primary table, and do a left OUTER join to the rest of your data. This way, you know you'll always get every month, but only when a valid join to the "other side" is identified, you'll get that data too. Ooops... missed your point about the filling in missing elements from the last element... Thinking...
The following works... and I'll describe the elements to what is going on. First, I created a temp table "C_Months" with a column Mth (month) with numbers 1-12. I used "Mth" as an abbreviation of Month to not cause possible conflict with POSSIBLE reserved word MONTH. Additionally, in my query, the table reference "C_Preset" is the prepared set of data you mentioned you already have of distinct elements.
SELECT
LVM.Equip_ID,
LVM.Mth,
P1.Year,
P1.MyData
FROM
( SELECT
JEM.Equip_ID,
JEM.Mth,
( SELECT MAX( P.Mth )
FROM C_Preset P
WHERE P.Equip_ID = JEM.Equip_ID
AND P.Mth <= JEM.Mth ) as MaxMth
FROM
( SELECT distinct
p.equip_id,
c.mth
FROM
C_months c,
C_Preset p
group by
1, 2
HAVING
c.mth >= MIN( p.Mth )
and c.mth <= MAX( p.Mth )
ORDER BY
1, 2 ) JEM
) LVM,
C_Preset P1
WHERE
LVM.Equip_ID = P1.Equip_ID
AND LVM.MaxMth = P1.Mth
ORDER BY
1, 2
The inner most query is a query of the available months (C_Months) associated with a given equipment ID. In your example, equipment ID 1 had a values of 1,2,5. So this would return 1, 2, 3, 4, 5. And for Equipment ID 2, it started with 2, but ended with 6, so it would return 2, 3, 4, 5, 6. Hence the aliased reference JEM (Just Equipment Months)
Then, the field selection for MaxMth (Maximum month)... This is the TRICKY ONE
( SELECT MAX( P.Mth )
FROM C_Preset P
WHERE P.Equip_ID = JEM.Equip_ID
AND P.Mth <= JEM.Mth ) as MaxMth
From this, stating I want the maximum month AVAILABLE (from JEM) associated with the given equipment that is AT OR LESS than the month In question (detecting the highest "valid" equipment item/month within the qualified list. The result of this would result in...
Equip_ID Mth MaxMth
1 1 1
1 2 2
1 3 2
1 4 2
1 5 5
2 2 2
2 3 2
2 4 4
2 5 4
2 6 6
So, for your example of ID = 1, you had months 1, 2, 5 (3 and 4 were missing), so the last valid month that 3 and 4 would refer to is sequence #2's month. Likewise for ID = 2, you had months 2, 4 and 6... Here, 3 would refer back to 2, 5 would refer back to 4.
The rest is the easy part. Now, we join your LVM (Last Valid Month) result as shown above to your original C_Preset (less records). But since we now have the last valid month to directly associate to an existing record in the C_Preset, we join by equipment id and the MaxMth colum, and NOT THE ACTUAL month.
Hope this helps... Again, you'll probably have to change my "mth" column references to "month" to match your format.