Technical pan in query of sql server

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hi,
i have table like this schéma

STATION_ID|SENSORNAME|TIME_TAG  |VALUE
AIN SEBOU |NIVEAU    |2015-03-01|20
AIN SEBOU |NIVEAU    |2015-03-02|70
AIN SEBOU |PLUIE1hr  |2015-03-01|20
AIN SEBOU |PLUIE1hr  |2015-03-02|10
AZZABA    |NIVEAU    |2015-03-01|20
AZZABA    |NIVEAU    |2015-03-02|70
AZZABA    |PLUIE1hr  |2015-03-01|20
AZZABA    |PLUIE1hr  |2015-03-02|10

i want to seelect ligne wich containe STATION_ID = AIN SEBOU and AZZABA and for
SENSORNAME NIVEAU and PLUIE1hr for AIN SEBOU and NIVEAU for AZZABA

i have use this qyery but i get all (sensor name)

SQL

select *
from XC_DATA1
where (STATION_ID='AIN SEBOU'or STATION_ID= 'AZZABA')
and (SENSORNAME='NIVEAU' OR SENSORNAME='PLUIE1HR' )

but me i want rslt like this

AIN SEBOU |NIVEAU    |2015-03-01|20
AIN SEBOU |NIVEAU    |2015-03-02|70
AIN SEBOU |PLUIE1hr  |2015-03-01|20
AIN SEBOU |PLUIE1hr  |2015-03-02|10
AZZABA    |NIVEAU    |2015-03-01|20
AZZABA    |NIVEAU    |2015-03-02|70

for primary key of my table are STATION_ID,SENSORNAME and TIME_TAG

Posted 29-Jul-15 3:29am

Member 11573837

Updated 29-Jul-15 4:04am

Wendelius

v3

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2 solutions

Solution 2

Just to throw another option, I often like to use IN since it makes the query a bit more simplified and often removes the need for additional parenthesis around OR section.

In other words to modify the good answer from Kornfeld Eliyahu Peter you can use something like

SQL

SELECT a.STATION_ID, 
       a.SENSORNAME,
       a.TIME_TAG,
       a.VALUE
FROM XC_DATA1 a
WHERE (STATION_ID = 'AIN SEBOU' AND SENSORNAME IN ('NIVEAU', 'PLUIE1HR'))
OR    (STATION_ID = 'AZZABA' AND SENSORNAME IN ('NIVEAU'))

The latter IN could also be equality but I used IN to keep the comparisons similar.

See IN (Transact-SQL)[^]

Posted 29-Jul-15 4:12am

Wendelius

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Kornfeld Eliyahu Peter · Accepted Answer · 2015-07-29T03:45:00

To open up you WHERE clause...

SQL

STATION_ID = 'AIN SEBOU' AND SENSORNAME = 'NIVEAU')
OR
(STATION_ID = 'AIN SEBOU' AND SENSORNAME = 'PLUIE1HR')
OR
(STATION_ID = 'AZZABA' AND SENSORNAME = 'NIVEAU')
OR
(STATION_ID = 'AZZABA' AND SENSORNAME = 'PLUIE1HR')

Where the last line actually not as you requested...
So what you need is...

SQL

STATION_ID = 'AIN SEBOU' AND SENSORNAME = 'NIVEAU')
OR
(STATION_ID = 'AIN SEBOU' AND SENSORNAME = 'PLUIE1HR')
OR
(STATION_ID = 'AZZABA' AND SENSORNAME = 'NIVEAU')

To make it short

SQL

(STATION_ID = 'AIN SEBOU' AND (SENSORNAME = 'NIVEAU' OR SENSORNAME = 'PLUIE1HR')
OR
(STATION_ID = 'AZZABA' AND SENSORNAME = 'NIVEAU')