Query mulitple colums from same table

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Query mulitple colums from same table

Author

Topic

SkyJoggeR
Starting Member

1 Post

Posted - 2010-10-18 : 00:36:49

Hi
i have a table that has a list of samples in it, each samples has about 7 elements to it and are put into this table as separate entries. what i want to run a query that puts all the elements onto one line for each sample. now i can do this to a point with a self-join where the samples have the a common ID for this table, but this only happens for about 4 of the elements the other 3 elements are created from another test and therefore come out with a different ID which is linked to a second table. in this second table there is a column sampleindent which is not the primary key for this table and does not link to the first table, but all elements in this sample i want out putted on 1 row have the same sampleindent
this is what i have so far
SELECT s.SAMPLEIDENT
,s.EXTERNALIDENT
,s.ANALYSED
,a.FORMATTEDVALUE AS CU
,b.Formattedvalue as FE
,p.formattedvalue as PB
,z.formattedvalue as ZN

from SAMPLE s
join ANALYTE a on s.ID=a.ID
join ANALYTE b on a.ID=b.ID
join ANALYTE p on a.ID=p.ID
join ANALYTE z on a.ID=z.ID
where s.pro_job in (select PRO_JOB
from CHD.dbo.CHD_JOB
where CLI_CODE like '%geo%')
and a.ANALYTECODE like '%CU%'
and b.ANALYTECODE like '%FE%'
and p.ANALYTECODE like '%PB%'
and z.ANALYTECODE like '%ZN%'
but then i dont know how to get the values that dont share the ID in the Analyte table to out put into this value

thanks

webfred
Master Smack Fu Yak Hacker

8781 Posts

Posted - 2010-10-18 : 04:20:35

No, you're never too old to Yak'n'Roll if you're too young to die.

jcelko
Esteemed SQL Purist

547 Posts

Posted - 2010-10-18 : 15:54:19

1) There is no such thing AS a magical generic vague "id" in RDBMS. There are only particular identifiers. It would also help if you follow the ISO-11179 naming rules

2) Do not reserved words in lowercase and object names in uppercase. It does not work. Read the research.

3) Here is a guess made without any DDL:

SELECT sample_id, external_something_id, analyzed_flg,
MAX (CASE WHEN analyte_code LIKE '%cu%'
THEN formatted_something_value
ELSE '' END) AS cu,
MAX (CASE WHEN analyte_code LIKE '%fe%'
THEN formatted_something_value
ELSE '' END) AS fe,
MAX (CASE WHEN analyte_code LIKE '%pb%'
THEN formatted_something_value
ELSE '' END) AS pb,
MAX (CASE WHEN analyte_code LIKE '%zn%'
THEN formatted_something_value
ELSE '' END) AS zn
FROM Samples AS S
WHERE S.pro_job
IN (SELECT pro_job FROM CHD.chd_job)
AND cli_code LIKE '%geo%'
GROUP BY sample_id, external_something_id, analyzed_flg;

--CELKO--
Books in Celko Series for Morgan-Kaufmann Publishing
Analytics and OLAP in SQL
Data and Databases: Concepts in Practice
Data, Measurements and Standards in SQL
SQL for Smarties
SQL Programming Style
SQL Puzzles and Answers
Thinking in Sets
Trees and Hierarchies in SQL

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