November 12, 2018 at 10:57 am
Hi Guys,
I need a help for a query development that returns only one record according to the condition. But if condition is not true, query should select other value. for example:
SELECT
Field
FROM TABLE
WHERE Field = 'BRA'
Key Search Field
______________
|BRA | X |
|CHL | Y |
|USA | Z |
|_____________|
SELECT
Field
FROM TABLE
IF Field = 'BRA' IS NULL
THEN GET Field = 'CHL'
______________
| NULL | X |
| CHL | Y |
| USA | Z |
|______________|
Thank you
November 12, 2018 at 11:24 am
antoniop.silv - Monday, November 12, 2018 10:57 AMHi Guys,I need a help for a query development that returns only one record according to the condition. But if condition is not true, query should select other value. for example:
SELECT
Field
FROM TABLE
WHERE Field = 'BRA'Key Search Field
______________
|BRA | X |
|CHL | Y |
|USA | Z |
|_____________|SELECT
Field
FROM TABLE
IF Field = 'BRA' IS NULL
THEN GET Field = 'CHL'
______________
| NULL | X |
| CHL | Y |
| USA | Z |
|______________|Thank you
Sorry I think you are not able to ask what you want may be due to language barrier.
I think you need case expression:
select field1,case when field2 is not null then field2 else 'CHL' end as field2
from tablename
Saravanan
November 12, 2018 at 11:35 am
saravanatn - Monday, November 12, 2018 11:24 AMantoniop.silv - Monday, November 12, 2018 10:57 AMHi Guys,I need a help for a query development that returns only one record according to the condition. But if condition is not true, query should select other value. for example:
SELECT
Field
FROM TABLE
WHERE Field = 'BRA'Key Search Field
______________
|BRA | X |
|CHL | Y |
|USA | Z |
|_____________|SELECT
Field
FROM TABLE
IF Field = 'BRA' IS NULL
THEN GET Field = 'CHL'
______________
| NULL | X |
| CHL | Y |
| USA | Z |
|______________|Thank you
Sorry I think you are not able to ask what you want may be due to language barrier.
I think you need case expression:select field1,case when field2 is not null then field2 else 'CHL' end as field2
from tablename
No, a case statement will not work, based upon the data provided.
What have you tried? Can you post your code??? There is some ambiguity in what you are asking.
See the link in my signature about how to post questions.
The question I have is this. If a row contains 'BRA', then return it. If it is null, then return the row that contains 'CHL'.
Looking at your example, what happens if there are 10 million rows, and only some of them contain "BRA"? How to you determine what specific row that contains "CHL" is the one that matches up with these rows?
Expanding upon your example dats:
Here is what you provided
| NULL | X |
| CHL | Y |
| USA | Z |
What if you have this?
NULL X
CHL Y
USA Z
BRA A
CHL M
USA E
NULL N
CHL O
USA D
NULL F
CHL G
USA H
Michael L John
If you assassinate a DBA, would you pull a trigger?
To properly post on a forum:
http://www.sqlservercentral.com/articles/61537/
November 12, 2018 at 12:15 pm
Michael L John - Monday, November 12, 2018 11:35 AMsaravanatn - Monday, November 12, 2018 11:24 AMantoniop.silv - Monday, November 12, 2018 10:57 AMHi Guys,I need a help for a query development that returns only one record according to the condition. But if condition is not true, query should select other value. for example:
SELECT
Field
FROM TABLE
WHERE Field = 'BRA'Key Search Field
______________
|BRA | X |
|CHL | Y |
|USA | Z |
|_____________|SELECT
Field
FROM TABLE
IF Field = 'BRA' IS NULL
THEN GET Field = 'CHL'
______________
| NULL | X |
| CHL | Y |
| USA | Z |
|______________|Thank you
Sorry I think you are not able to ask what you want may be due to language barrier.
I think you need case expression:select field1,case when field2 is not null then field2 else 'CHL' end as field2
from tablenameNo, a case statement will not work, based upon the data provided.
What have you tried? Can you post your code??? There is some ambiguity in what you are asking.
See the link in my signature about how to post questions.The question I have is this. If a row contains 'BRA', then return it. If it is null, then return the row that contains 'CHL'.
Looking at your example, what happens if there are 10 million rows, and only some of them contain "BRA"? How to you determine what specific row that contains "CHL" is the one that matches up with these rows?
Expanding upon your example dats:
Here is what you provided
| NULL | X |
| CHL | Y |
| USA | Z |What if you have this?
NULL X
CHL Y
USA Z
BRA A
CHL M
USA E
NULL N
CHL O
USA D
NULL F
CHL G
USA H
Thank for your feedback, It's only free cases BRA, CHL, USA.
SELECT
( CASE
WHEN [LANGUAGE] = 'PT-BR'
THEN DESCRIPTION
ELSE
CASE WHEN [LANGUAGE] = 'EN-US'
END
END
)
FROM TABLE
I tried with code above, but syntax does not answer
November 12, 2018 at 12:18 pm
saravanatn - Monday, November 12, 2018 11:24 AMantoniop.silv - Monday, November 12, 2018 10:57 AMHi Guys,I need a help for a query development that returns only one record according to the condition. But if condition is not true, query should select other value. for example:
SELECT
Field
FROM TABLE
WHERE Field = 'BRA'Key Search Field
______________
|BRA | X |
|CHL | Y |
|USA | Z |
|_____________|SELECT
Field
FROM TABLE
IF Field = 'BRA' IS NULL
THEN GET Field = 'CHL'
______________
| NULL | X |
| CHL | Y |
| USA | Z |
|______________|Thank you
Sorry I think you are not able to ask what you want may be due to language barrier.
I think you need case expression:select field1,case when field2 is not null then field2 else 'CHL' end as field2
from tablename
Saravanatn thank you for your feedback.
I will try to explain better with examples.
Thank you.
November 12, 2018 at 12:19 pm
antoniop.silv - Monday, November 12, 2018 12:18 PMsaravanatn - Monday, November 12, 2018 11:24 AMantoniop.silv - Monday, November 12, 2018 10:57 AMHi Guys,I need a help for a query development that returns only one record according to the condition. But if condition is not true, query should select other value. for example:
SELECT
Field
FROM TABLE
WHERE Field = 'BRA'Key Search Field
______________
|BRA | X |
|CHL | Y |
|USA | Z |
|_____________|SELECT
Field
FROM TABLE
IF Field = 'BRA' IS NULL
THEN GET Field = 'CHL'
______________
| NULL | X |
| CHL | Y |
| USA | Z |
|______________|Thank you
Sorry I think you are not able to ask what you want may be due to language barrier.
I think you need case expression:select field1,case when field2 is not null then field2 else 'CHL' end as field2
from tablenameSaravanatn thank you for your feedback.
I will try to explain better with examples.
Thank you.
SELECT
( CASE
WHEN [LANGUAGE] = 'PT-BR'
THEN DESCRIPTION
ELSE
CASE WHEN [LANGUAGE] = 'EN-US'
END
END
)
FROM TABLE
I tried with code above, but syntax does not answer
November 12, 2018 at 12:21 pm
Use "TOP (1)" to limit the results to one row. For example:
SELECT TOP (1) Field
FROM TABLE
ORDER BY Field
SQL DBA,SQL Server MVP(07, 08, 09) A socialist is someone who will give you the shirt off *someone else's* back.
November 12, 2018 at 1:03 pm
If you want them in a certain order:SELECT TOP (1) Field
FROM myTable
ORDER BY CASE WHEN Field='BRA' THEN 1
WHEN Field='CHL' THEN 2
WHEN Field='USA' THEN 3
END
November 12, 2018 at 2:53 pm
How about we consider the need for the result to NOT be NULL?SELECT TOP (1) Field
FROM TABLE
WHERE Field IS NOT NULL
ORDER BY [Key];
Steve (aka sgmunson) 🙂 🙂 🙂
Rent Servers for Income (picks and shovels strategy)
November 22, 2018 at 7:17 pm
Thank you guys,
It worked that way:
-- Create table
CREATE TABLE #tbLanguages
(
id INT NOT NULL IDENTITY(1,1),
Parts INT NOT NULL,
Language VARCHAR(30) NULL,
Value VARCHAR(30) NULL
)
-- Insert datas in table
INSERT INTO #tbLanguages
(
Parts,
Language,
Value
)
SELECT 100,'EN-US','CABLE'
UNION SELECT 100,'ES-AR','8F'
UNION SELECT 100,'PT-BR','8F CX CARTOLI'
UNION SELECT 200,'EN-US','SALE'
UNION SELECT 200,'ES-AR','VENTA'
-- Query get one register
SELECT top 1 *
FROM #tbLanguages
INNER JOIN ( SELECT MAX(ID) LastParts
FROM #tbLanguages
WHERE
Parts = @Parts
GROUP BY Value ) Filter On Filter.LastParts = #tbLanguages.ID
ORDER BY
CASE
WHEN Language = 'PT-BR' then 1
WHEN Language = 'EN-US' then 2
WHEN Language = 'ES-AR' then 3
ELSE 4
END
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