I'm trying to combine 3+ NOAA GSOD data tables to get the data together in one super table. The I am attempting to JOIN the stations table onto the resultant data and then filter by country.
I've been able to do this for just one table but not for more. Below is my attempt at modifying the code to achieve this. I tried several different modifications with no success :(
SELECT * FROM [bigquery-public-data:noaa_gsod.gsod2016] AS gsod2016,
[bigquery-public-data:noaa_gsod.gsod2015] AS gsod2015 JOIN [bigquery-public-
data:noaa_gsod.stations] AS stations ON gsod2016.stn = stations.USAF AND
gsod2015.stn = stations.USAF WHERE stations.country = "CB"
NOAA GSOD bigquery data:
https://bigquery.cloud.google.com/table/bigquery-public-data:noaa_gsod.gsod2016
Use 1 standard inner join or , (preferably inner join syntax) and ensure the tables are in the correct order, you can't join on a table unless its' been defined above the ON.
SELECT *
FROM [bigquery-public-data:noaa_gsod.stations] AS stations
INNER JOIN [bigquery-public-data:noaa_gsod.gsod2016] AS gsod2016
ON gsod2016.stn = stations.USAF
INNER JOIN [bigquery-public-data:noaa_gsod.gsod2015] AS gsod2015
ON gsod2015.stn = stations.USAF
WHERE stations.country = "CB"
Now all this said did you really mean a join or did you want to UNION ALL
the data and add a year
Related
I am using a left join to get data into a single table with one query, I have done this for two different table and am now writing a single query to fetch data into a single one. My query is:
select ec.CUSTOMERDESCRIPTOR as OUTLET,
ollastsyncdatetime.TIMESTMP as LASTSYNCEDDATETIME,
ollastindentdatetime.TIMESTMP as LASTINDENTDATETIME
from (ollastsyncdatetime
left join ollastindentdatetime on ((ollastsyncdatetime.OUTLET = ollastindentdatetime.OUTLET)))
Inner Join ecustomer ec on ollastsyncdatetime.outlet = ec.CUSTOMERIDENTIFIER
group by ollastsyncdatetime.OUTLET
This query is giving me a result like this:
I am able to join two tables but facing issues in joining more than two.
Now I have 2 more tables in my Database from which I have to fetch data and make new columns
the two new tables are
ollastdumpdamagedatetime
ollastindentdatetime
I want a result like this:
If there is no data in table it should show blank because I am populating columns data on the comparison with outlets. Please ignore the actual data in table; they are same because I am using this as an example only.
Use left join for both table
select ec.CUSTOMERDESCRIPTOR as OUTLET,ollastsyncdatetime.TIMESTMP as LASTSYNCEDDATETIME,ollastindentdatetime.TIMESTMP as LASTINDENTDATETIME
from ollastsyncdatetime left join ollastindentdatetime
on ollastsyncdatetime.OUTLET = ollastindentdatetime.OUTLET
left Join ecustomer ec
on ollastsyncdatetime.outlet = ec.CUSTOMERIDENTIFIER
I am trying to make a table that includes join between 3 tables in the MSSS 2008. There is a fact table, a date table, and a course table. I should join them to make a base table. In date table there is a one parameter that name is Academic Year lookup, and the values in this parameter is like 2000/1, 2001/2. This parameter in the base table should separate to three parameter such as CensusYear, StartYear, and ApplicationYear. Therefore, I need the data table multiple times. I executed a inner join query, and already I have four inner join statement, but I am getting some extra years, and I'm losing some years. I believe, my query should be wrong somewhere.
The attached file is include the design view that created in the MS Access, it'll help to see the tables, and understand what I need to create.
[Design View in Ms Access][1]
SELECT
A.[EventCount],
B.[AcademicYearLookup] AS [CensusYear],
C.[AcademicYearLookup] AS [StartYear],
D.[AcademicYearLookup] AS [ApplicationYear],
B.[CurrentWeekComparisonFlag],
B.[AcademicWeekOfYear],
case
when A.[ApplicationCensusSK] = 1 then 'Same Year'
when A.[ApplicationCensusSK] = 2 then 'Next Year'
when A.[ApplicationCensusSK] = 5 then 'Last Year'
ELSE 'Other'
END as [CensusYearDescription],
B.[CurrentAcademicYear],
A.[StudentCodeBK],
A.[ApplicationSequenceNoBK],
A.[CourseSK],
A.[CourseGroupSK],
A.[CourseMoaSK],
A.[CboSK],
A.[CourseTaughtAbroadSK],
A.[ApplicationStatusSK],
A.[ApplicationFeeStatusSK],
A.[DecisionResponseSK],
A.[NationalityCountrySK],
A.[DomicileCountrySK],
A.[TargetRegionSK],
A.[InternationalSponsorSK] INTO dbo.[BaseTable3yrs]
FROM Student.FactApplicationSnapshot A
INNER JOIN Conformed.DimDate AS B ON A.[CensusDateSK] = B.[DateSK]
INNER JOIN Conformed.DimDate AS C ON A.[AcademicYearStartDateSK] = C.[DateSK]
INNER JOIN Conformed.DimDate AS D ON A.[ApplicationDateSK] = D.[DateSK]
INNER JOIN Student.DimCourse ON A.CourseSK = Student.DimCourse.CourseSK
WHERE (((B.CurrentAcademicYear) In (0,-1))
AND ((A.ApplicationCensusSK) In (1,2,5))
AND ((Student.DimCourse.DepartmentShortName)= 'TEACH ED'));
/* the query to check that the result it's correct or not, and I check it by academic week of year, and I found that I am lossing some data, and I have some extra data, means maybe join is wrong*/
select * from [BaseTable3yrs]
where [StudentCodeBK]= '26002423'
AND [ApplicationSequenceNoBK] = '0101'
order by [AcademicWeekOfYear]
When doing recursive joins like this, it's easy to get duplicate records. You could try gathering the Conformed data separately into a table variable and then joining to it. This would also make your query more readable.
You might also try a SELECT DISTINCT on your main query.
SELECT team_with.participant1,team_with.participant2,team_with.participant3
FROM event,team_with
WHERE team_with.for_event_no=event.event_no AND
event.event_no=4 AND
team_with.participant1=9 OR
team_with.participant2=9 OR
team_with.participant3=9;
I have written the particular query, and obtained the required id's in a row. I am not able to modify this query such that, in place of these id's, names connected to the id's are displayed.
The student_detatil table consists of PK(sam_id) and the attribute name.
IDs displayed by the present query are FKs connected to student_detail.sam_id..
It seems like a bad design to multiply columns storing different participants. Consider creating a separate row for each participant and storing them in a table. Your joining logic would also be easier.
Also, please use explicit JOIN syntax - it makes the query clearer and easier to understand by separating join logic with conditions for data retrieval.
Remember that operator AND has a precedence over OR, so that your event.event_no = 4 does not apply to each participant condition. I believe this was a mistake, but you are the one to judge.
As to the query itself, you could apply OR conditions into join, or simply join the student_detail table thrice.
SELECT
s1.name,
s2.name,
s3.name
FROM
event e
INNER JOIN team_with t ON t.for_event_no = e.event_no
LEFT JOIN student_detail s1 ON s1.sam_id = t.participant1
LEFT JOIN student_detail s2 ON s2.sam_id = t.participant2
LEFT JOIN student_detail s3 ON s3.sam_id = t.participant3
WHERE
e.event_no = 4
AND ( t.participant1=9 OR t.participant2=9 OR t.participant3=9 );
I'm using 3 tables to collect data from. The proces looks like:
User write VIN to form
Script search in table 1 for case_id and country base on that vin
number
After that he use case_id and country for search in table number 2
and get calculation id from there
Base on that calculation id and case id it search in 3th table
.
My script looks like this:
SELECT
cases.case_id,
cases.lastcalc_model_options,
cases.country,
calculations.calculation_id,
calculations.license,
positions.text
FROM cases
INNER JOIN calculations ON(cases.case_id =calculations.case_id
AND cases.country = calculations.country)
INNER JOIN positions ON(calculations.case_id = positions.case_id
AND calculations.calculation_id = positions.calculation_id)
WHERE vin ='ABCDEFGH'
This select work correctly, problem start when for example there is for example no result in table positions with that case_id and calculation_id. Instead of give back atleast everything it found in other tables it return NOTHING.
Is there a way to change this kind of komplex SELECT to return everything it found not return something only when every condition is TRUE?
Your problem is the INNER JOIN. Using INNER JOIN your result only contains entries present in all tables. Try using LEFT JOIN instead.
SELECT
cases.case_id,
cases.lastcalc_model_options,
cases.country,
calculations.calculation_id,
calculations.license,
positions.text
FROM cases
LEFT JOIN calculations ON(cases.case_id =calculations.case_id
AND cases.country = calculations.country)
LEFT JOIN positions ON(calculations.case_id = positions.case_id
AND calculations.calculation_id = positions.calculation_id)
WHERE vin ='ABCDEFGH'
See this stackoverlow answer for some more indepth information.
INNER JOIN returns rows from both tables only if there is a match between the columns in both tables.
You may try LEFT JOIN or FULL OUTER JOIN instead.
I have a query I need to perform on a table that is roughly 1M records. I am trying to reduce the churn, but unfortunately there is a UNION involved (after i figure this join out), so that may be a question for another day.
The records and data I need to get reference 3 fields in a table that need each pull a description from another table and return it in the same record, but when i do the Inner join i was thinking, it either returns only 1 field fromt he other table, or multiple records from he original table.
Here are some screen shots of the tables and their relationship:
Primary table containing records (1 each) with the physician record I want to pull, including up to 3 codes that can be listed in the "taxonomy" table.
Secondary table containing records (1 each) with the "Practice" field I want to pull.
A Quick glance of the relationship i'm talking about
I presume that if perform an inner join matching the 3 fields in the physicians table, that it will have to iterate that table multiple times to pull each taxonomy code .. but I still can't even figure the syntax to easily pull all of these codes instead of just 1 of them.
i've tried this:
SELECT
taxonomy_codes.specialization,
physicians.provider_last_name,
physicians.provider_first_name,
physicians.provider_dba_name,
physicians.legal_biz_name,
physicians.biz_practice_city
FROM
taxonomy_codes
INNER JOIN physicians ON physicians.provider_taxonomy_code_1 = taxonomy_codes.taxonomy_codes OR physicians.provider_taxonomy_code_2 = taxonomy_codes.taxonomy_codes OR physicians.provider_taxonomy_code_3 = taxonomy_codes.taxonomy_codes
First, the query churns a lot and it only returns one taxonomy specialty result which I presume is because of the OR in the join statement. Any help would be greatly appreciated.
Thank you,
Silver Tiger
You have to join the taxonomy_codes table multiple times:
SELECT p.provider_last_name, p...., t1.specialization as specialization1, t2.specialization as specialization2, t3.specialization as specialization3
FROM physicians p
LEFT JOIN taxonomy_codes t1 ON t1.taxonomy_codes = provider_taxonomy_code_1
LEFT JOIN taxonomy_codes t2 ON t2.taxonomy_codes = provider_taxonomy_code_2
LEFT JOIN taxonomy_codes t3 ON t3.taxonomy_codes = provider_taxonomy_code_3