I installed Solr from CDH which version is 4.10.3-cdh5.13.0.
My job like one sql work like,How to realize by Solr4:
select D,E,sum(A),sum(B) from DOC where C='balabala' group by D , E;
I try this one,but only one column in group section.
&stats=on
&stats.field=A
&stats.field=B
&stats.facet=D
In Solr5,code below works,but in Solr4 failed:
facet=true&stats=true&stats.field={!tag=piv1}A&facet.pivot={!stats=piv1}D,E
Is there one approach ?
and one more question:
how to realize
select D,E,sum(A*B) from DOC where C='balabala' group by D , E;
Related
I am using Firebird SQL. The below mentioned query returns 4 rows as shown in the figure.
SELECT a.EPS_ID,b.C_NAME,c.AY_YR_NAME,d.S_NAME,e.E_NAME
FROM
TBLEXAMPLANNER_S_MSB a,
TBLCLASS_MSB b,
TBLACADEMICYEAR_MSB c,
TBLSUBJECTS_MSB d,
TBLEXAMTYPE_MSB e
WHERE
a.EPS_CLASS_ID=b.C_ID
AND a.EPS_SESSION_ID=c.AY_ID
AND a.EPS_SUB_ID=d.S_ID
AND a.EPS_PE_ID=e.E_ID
I want it to return only 1(one) row like
EPS_ID C_NAME AY_YR_NAME S_NAME E_NAME
---------------------------------------------------
7 5 2016-2017 English FA1
I am using the following query but it does not work.
SELECT a.EPS_ID,MAX(b.C_NAME) AS XT,c.AY_YR_NAME,d.S_NAME,e.E_NAME
FROM
TBLEXAMPLANNER_S_MSB a,
TBLCLASS_MSB b,
TBLACADEMICYEAR_MSB c,
TBLSUBJECTS_MSB d,
TBLEXAMTYPE_MSB e
WHERE
a.EPS_CLASS_ID=b.C_ID
AND a.EPS_SESSION_ID=c.AY_ID
AND a.EPS_SUB_ID=d.S_ID
AND a.EPS_PE_ID=e.E_ID
GROUP BY a.EPS_ID,d.S_NAME
The error message is :
Invalid expression in the select list (not contained in either an
aggregate function or the GROUP BY clause)
The usage of GROUP BY makes the engine group the records for you. To do grouping, you have to give advice to the RDBMS for each column, what it should do.
Group it? -> Add column to GROUP BY-Clause
Not group it? -> ok, what else?
ignore the column? remove it from your select-clause
Sum it? -> use SUM(mycol)
other aggregation functions can be found in the documentation
Additionally: In your case you try to group by EPS_ID, which is unique in each row. So a grouping by that column will return all rows, because there is nothing to group by. To group records, they have to have the same value.
Learn to use proper, explicit JOIN syntax.
Your problem is that all unaggregated columns need to be in the GROUP BY:
SELECT a.EPS_ID, MAX(b.C_NAME) AS XT, c.AY_YR_NAME, d.S_NAME, e.E_NAME
FROM TBLEXAMPLANNER_S_MSB a JOIN
TBLCLASS_MSB b
ON a.EPS_CLASS_ID = b.C_ID JOIN
TBLACADEMICYEAR_MSB c
ON a.EPS_SESSION_ID = c.AY_ID JOIN
TBLSUBJECTS_MSB d
ON a.EPS_SUB_ID = d.S_ID JOIN
TBLEXAMTYPE_MSB e
ON a.EPS_PE_ID = e.E_ID
GROUP BY a.EPS_ID, c.AY_YR_NAME, d.S_NAME, e.E_NAME;
Note: I would also recommend that you use table abbreviations for table aliases. So, ep for TBLEXAMPLANNER_S_MSB instead of a. Arbitrary table aliases make the query hard to follow.
Try
SELECT a.EPS_ID,c.AY_YR_NAME,d.S_NAME,e.E_NAME,MAX(b.C_NAME) AS XT ...
GROUP BY 1,2,3,4
Can you please tell me what SQL query can I use to change duplicates in one column of my table?
I found these duplicates:
SELECT Model, count(*) FROM Devices GROUP BY model HAVING count(*) > 1;
I was looking for information on exactly how to change one of the duplicate values, but unfortunately I did not find a specific option for myself, and all the more information is all in abundance filled by deleting the duplicate value line, which I don't need. Not strong in SQL at all. I ask for help. Thank you so much.
You can easily use a Window Functions such as ROW_NUMBER() with partitioning option in order to group by Model column to eliminate the duplicates, and then pick the first rows(rn=1) returning from the subquery such as
WITH d AS
(
SELECT *, ROW_NUMBER() OVER (PARTITION BY Model) AS rn
FROM Devices
)
SELECT ID, Model -- , and the other columns
FROM d
WHERE rn = 1
Demo
use exists as follows:
update d
set Model = '-'
from Devices d
where exists (select 1 from device dd where dd.model = d.model and dd.id > d.id)
After the command:
SELECT Model, count (*) FROM Devices GROUP BY model HAVING count (*)> 1;
i get the result:
1895 lines = NULL;
3383 lines with duplicate values;
and all these values are 1243.
after applying your command:
update Devices set
Model = '-'
where id not in
(select
min(Devices .id)
from Devices
group by Devices.Model)
i got 4035 lines changed.
if you count, it turns out, (3383 + 1895) = 5278 - 1243 = 4035
and it seems like everything fits together, the result suits, it works.
The where clause in the below hive query is not working
select
e.num as badge
from dbo.events as e
where TO_DATE(e.event_time_utc) > TO_DATE(select event_date from DL_EDGE_LRF_facilities.card_swipes_lastpulldate)
both event_time_utc and event_date fields are defined as strings and event_time_utc has timestamp values like '2017-09-18 20:10:19.000000' and event_date has only one date value like '2018-01-25'
i am getting an error like "cannot recognize input near 'select' 'event_date' 'from' in function specification " when i run the query, Please help
#user86683; hive does not recognize the syntax since it does not allow in-query in the inequality condition (>). You may try this query and let me know the result.
select e.num as badge
from dbo.events as e, DL_EDGE_LRF_facilities.card_swipes_lastpulldate c
where TO_DATE(e.event_time_utc) > TO_DATE(c.event_date)
You will get a warning but you may ignore it since the table for event_date has only one record.
Warning: Map Join MAPJOIN[10][bigTable=e] in task 'Map 1' is a cross product
Query ID = xxx_20180201102128_aaabb2235-ee69275cbec1
Total jobs = 1
Launching Job 1 out of 1
Status: Running (Executing on YARN cluster with App id application_09fdf345)
Hope this helps. Thanks.
I am really stuck with query on Heroku.
I am trying to run the following query on heroku console
SELECT DATE(TimeLogin) AS d, COUNT(*) AS c FROM histories GROUP BY DATE(TimeLogin)
but I get following error,
syntax error, unexpected tCONSTANT,expecting $end
SELECT DATE(TimeLogin) AS d, COUNT(*) AS c FROM histor...
^
My heroku has postgresql
Please let me know what is the problem with this query
Regards.
i added double quotes for column names like this
SELECT DATE("TimeLogin") AS d, COUNT(*) AS c FROM histories GROUP BY DATE("TimeLogin")
this resolved my issue
I have a query as below
select custref, tetranumber
from
(select *
from cdsheader h, custandaddr c
where h.custref=c.cwdocid and c.addresstype = 'C' )
where tetranumber = '034096'
The objective is the 2nd column should have only one corresponding 1st column
Ex : 034096 should have always have 2600135 as the first column
I would like to check if there is any value apart from 2600135 for 034096.
(I am a java developer and suggested a solution to avoid 1 to n or n to n mappings of data but there is a bad data already in the DB(Oracle), so I would like to check whether there is a bad data so that I could delete the data)
re: The objective is the 2nd column should have only one corresponding 1st column
You'll need to perform an aggregate function, like MAX or MIN, to determine which of the row is returned.
Thanks for the response guys,
I have figured out the way and here it goes...
select custref, count(distinct(tetranumber)) from(
select custref, tetranumber from cdsheader h, custandaddr c where h.custref=c.cwdocid and c.addresstype = 'C')
group by custref having count(distinct(tetranumber))>1