new to learning sql/postgresql and have been hunting all over looking for help with a query to find only the matching id values in a table so i can pull data from another table for a learning project. I have been trying to use the count command, which doesn't seem right, and struggling with group by.
here is my table
id acct_num sales_tot cust_id date_of_purchase
1 9001 1106.10 116 12-Jan-00
2 9002 645.22 125 13-Jan-00
3 9003 1096.18 137 14-Jan-00
4 9004 1482.16 118 15-Jan-00
5 9005 1132.88 141 16-Jan-00
6 9006 482.16 137 17-Jan-00
7 9007 1748.65 147 18-Jan-00
8 9008 3206.29 122 19-Jan-00
9 9009 1184.16 115 20-Jan-00
10 9010 2198.25 133 21-Jan-00
11 9011 769.22 141 22-Jan-00
12 9012 2639.17 117 23-Jan-00
13 9013 546.12 122 24-Jan-00
14 9014 3149.18 116 25-Jan-00
trying to write a simple query to only find matching customer id's, and export them to the query window.
So basically I have some simple SQL code that looks like the following;
SELECT
[Column1]
,[Column2]
,[Column3]
,[Column4]
,MIN([Column5]) AS maxColumn5
,MAX([Column6]) AS minColumn6
,SUM([Column7]) AS sumColumn7
,SUM([Column8]) AS sumColumn8
,SUM([Column9]) AS sumColumn9
FROM
[tableName]
GROUP BY
[Column1]
,[Column2]
,[Column3]
,[Column4]
What I am trying to do is also find the column either 'Column1', 'Column2', or 'Column3' that corresponds to the MIN([Column6]) and then the column that corresponds to MAX([Column8]).
The output should be exactly the same except there will be an extra 2 column at the end specifying which one the min and max are associated with.
I think there is a simple problem in your question, as Col1,Col2,Col3 that correspond to the max or min, are displayed directly, in other words you have them as you are grouping by Col1,Col2,Col3 & Col4.
As you did not provide some data, I will set some random data to prove my point.
Lets create a memory table similar to yours with 9 columns and fill it with random data for col6-8 with 10 rows for example, you can use the below:-
Declare #data Table(
Column1 int,Column2 int,Column3 int,Column4 int,Column5 int,Column6 int,Column7 int,Column8 int,Column9 int
)
declare #index int=5
while(#index>0)
begin
insert into #data values(1,2,3,4,RAND()*1000,RAND()*1000,RAND()*1000,RAND()*1000,RAND()*1000)
insert into #data values(5,6,7,8,RAND()*1000,RAND()*1000,RAND()*1000,RAND()*1000,RAND()*1000)
set #index=#index-1
end
we can see the data with the below
select * from #data order BY [Column1],[Column2],[Column3],[Column4]
Column1 Column2 Column3 Column4 Column5 Column6 Column7 Column8 Column9
1 2 3 4 669 203 278 364 577
1 2 3 4 389 316 290 548 661
1 2 3 4 835 555 942 985 604
1 2 3 4 477 743 580 305 414
1 2 3 4 431 296 471 150 352
1 2 3 4 346 220 573 941 633
1 2 3 4 392 450 652 978 883
1 2 3 4 235 479 751 136 978
1 2 3 4 906 183 141 915 783
1 2 3 4 329 342 682 977 870
5 6 7 8 218 740 41 299 816
5 6 7 8 800 630 674 888 799
5 6 7 8 27 307 446 743 345
5 6 7 8 501 928 824 592 691
5 6 7 8 439 624 260 757 547
5 6 7 8 287 610 287 708 652
5 6 7 8 441 711 433 642 343
5 6 7 8 751 928 237 53 535
5 6 7 8 594 768 708 173 33
5 6 7 8 352 703 943 867 661
now lets see the result of your grouping that you provided without any change
Col1 Col2 Col3 Col4 minCol5 maxCol6 maxCol8 sumCol7 sumCol8 sumCol9
1 2 3 4 235 743 985 5360 6299 6755
5 6 7 8 27 928 888 4853 5722 5422
so if we go back to your question, what is the value of Col1,Col2,Col3 for the maxCol6, well for each maxCol6 you have the values of Col1,Col2,Col3 & even Col4.
so what are the values for Col1,Col2,Col3 for maxCol16 that is 928, well they are 5,6 & 7.
ok, now lets say you want the record key that have that maxCol6, that is easy too, we would add an identity col as ID as below:-
Declare #data Table(
ID int identity(1,1), Column1 int,Column2 int,Column3 int,Column4 int,Column5 int,Column6 int,Column7 int,Column8 int,Column9 int
)
declare #index int=10
while(#index>0)
begin
insert into #data values(1,2,3,4,RAND()*1000,RAND()*1000,RAND()*1000,RAND()*1000,RAND()*1000)
insert into #data values(5,6,7,8,RAND()*1000,RAND()*1000,RAND()*1000,RAND()*1000,RAND()*1000)
set #index=#index-1
end
select * from #data order BY [Column1],[Column2],[Column3],[Column4]
;with agg as (
SELECT
[Column1]
,[Column2]
,[Column3]
,[Column4]
,MIN([Column5]) AS minColumn5
,MAX([Column6]) AS maxColumn6
,MAX([Column8]) AS maxColumn8
,SUM([Column7]) AS sumColumn7
,SUM([Column8]) AS sumColumn8
,SUM([Column9]) AS sumColumn9
FROM
#data [tableName]
GROUP BY
[Column1]
,[Column2]
,[Column3]
,[Column4]
)
--select * from agg order BY [Column1],[Column2],[Column3],[Column4]
select agg.*,maxCol6.ID [MaxCol6Seq],maxCol8.ID [MaxCol8Seq] from agg
inner join #data maxCol6
on agg.Column1=maxCol6.Column1
and agg.Column2=maxCol6.Column2
and agg.Column3=maxCol6.Column3
and agg.Column4=maxCol6.Column4
and agg.maxColumn6=maxCol6.Column6
inner join #data maxCol8
on agg.Column1=maxCol8.Column1
and agg.Column2=maxCol8.Column2
and agg.Column3=maxCol8.Column3
and agg.Column4=maxCol8.Column4
and agg.maxColumn8=maxCol8.Column8
As this is a new run for this set of data , below:-
ID Column1 Column2 Column3 Column4 Column5 Column6 Column7 Column8 Column9
1 1 2 3 4 201 848 993 50 304
3 1 2 3 4 497 207 644 399 104
5 1 2 3 4 445 321 822 151 185
7 1 2 3 4 611 402 620 61 543
9 1 2 3 4 460 409 182 915 211
11 1 2 3 4 886 804 180 213 282
13 1 2 3 4 614 709 932 806 162
15 1 2 3 4 795 752 110 474 463
17 1 2 3 4 737 545 77 648 727
19 1 2 3 4 788 862 266 464 851
20 5 6 7 8 218 561 943 572 54
18 5 6 7 8 741 621 610 214 536
16 5 6 7 8 579 248 374 693 761
14 5 6 7 8 866 415 198 528 657
12 5 6 7 8 905 947 500 50 387
10 5 6 7 8 492 860 948 299 220
8 5 6 7 8 861 328 727 40 327
6 5 6 7 8 435 534 707 769 777
4 5 6 7 8 587 68 45 184 614
2 5 6 7 8 189 24 289 121 772
The result is as below:-
C1 C2 C3 C4 minC5 maxC6 maxC8 sumC7 sumC8 sumC9 MaxCol6Seq MaxCol8Seq
1 2 3 4 201 862 915 4826 4181 3832 19 9
5 6 7 8 189 947 769 5341 3470 5105 12 6
Hope this helps.
If you just want a flag on each row specifying whether the value is the overall maximum or minimum, you can use window functions and CASE:
SELECT [Column1], [Column2], [Column3], [Column4],
MAX([Column5]) AS maxColumn5,
MIN([Column6]) AS minColumn6,
SUM([Column7]) AS sumColumn7,
SUM([Column8]) AS sumColumn8,
SUM([Column9]) AS sumColumn9,
(CASE WHEN MIN([Column6]) = MIN(MIN([Column6])) OVER () THEN 1 ELSE 0 END) as is_min_column6,
(CASE WHEN MAX([Column7]) = MAX(MAX([Column7])) OVER () THEN 1 ELSE 0 END) as is_max_column7
FROM [tableName]
GROUP BY [Column1], [Column2], [Column3], [Column4]
For the following table
count_value
CPUCore Offline_RetentionAge
i7 183 4184
7 1981
30 471
i5 183 2327
7 831
30 250
Pentium 183 333
7 125
30 43
2 183 575
7 236
31 96
Is it possible to generate a seaborn countplot (or normal countplot) like the following (generated using sns.countplot(x='CPUCore', hue="Offline_BackupSchemaIncrementType", data=dfCombined_df))
Problem here is that I need to use the count_value as count, rather then really go and count the Offline_RetentionAge
I think you need seaborn.barplot:
sns.barplot(x="count_value", y="index", hue='Offline_RetentionAge', data=df.reset_index())
I have a table as below. I want to do a group by in such a way that 1-4 weeknums are joined together and 5-8 weeknums are joined together. Or in other words i want to get the monthly total from below fields
table1
weeknum amount
1 1000
2 1100
3 1200
4 1300
5 1400
6 1500
7 1600
8 1700
The output i need is as below
output
max(weeknum) sum(amount)
4 4600
8 6200
The below answer did not work exactly for my actual values as below. I want to start with 4 weeks grouping. The formula (weeknum-1)/4 returns 3 groups as in the expected is only 2
weeknum Group Expr Expected Group Expr
1855 463 463
1856 463 463
1857 464 463
1858 464 463
1859 464 464
1860 464 464
1861 465 464
1862 465 464
Need to execute the query in oracle
Try using FLOOR that rounds the number down in the group by clause:
SELECT MAX(t.weeknum),sum(amount)
FROM table1 t
GROUP BY FLOOR((t.weeknum-1)/4)
This will make sure every 4 weeks are treated as a group :
(1-1)/4 -> 0
(2-1)/4 -> 0
...
(5-1)/4 -> 1
I have three columns as shown in below tableA
Student Day Shifts
129 11 4
91 9 6
166 19 8
164 26 12
146 11 6
147 16 8
201 8 3
164 4 2
186 8 6
165 7 4
171 10 4
104 5 4
1834 134 67
I am writing a tvf to calculate Value of Points generated for Students as below
ALTER function Statagic(
#StartDate date
)
RETURNS TABLE
AS
RETURN
(
with src as
( select
Division=case when Shifts=0 then 0 else cast(Day as float)/cast(Shifts as float) end,*
from TableA
)
,tgt as
(select *,Points=Student*Division from src
)
select * from tgt)
When i execute above tvf(select * from Statagic('3/16/2014'))
My output is below
129 11 4 2.75 354.75
91 9 6 1.5 136.5
166 19 8 2.375 394.25
164 26 12 2.16666666666667 355.333333333333
146 11 6 1.83333333333333 267.666666666667
147 16 8 2 294
201 8 3 2.66666666666667 536
164 4 2 2 328
186 8 6 1.33333333333333 248
165 7 4 1.75 288.75
171 10 4 2.5 427.5
104 5 4 1.25 130
1834 134 67 2 3668
Note :
If you see the last row for three columns in the table is the total of rest column.So when you see the last row in the Output of TVF for last two columns when i am adding i am not getting same data i am getting more.
Guys please help me i am struggling to fix this bug i tried in all ways but i am unable to fix it.
select 354.75+136.5+394.25+355.333333333333+267.666666666667+294+536+328+248+288.75+427.5+130=3760.750000000000
3668 is not euql to 3760.75(I am getting more 100 value)