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Author

Topic

hisouka
Starting Member

28 Posts

Posted - 2009-02-08 : 23:27:43

Hi guys,

I have Query:

Select ID, Name, (SELECT Extract FROM tblExtract WHERE ExtractID = ID) AS ExtractNote FROM tblEmployees

I want to refer the ID colored in RED to ID Colored in Green
but it produce error that Invalid name for ID colored in REd

Is there anything i forgot? thanks

Jai Krishna
Constraint Violating Yak Guru

333 Posts

Posted - 2009-02-08 : 23:28:57

Select ID, Name, (SELECT Extract FROM tblExtract WHERE ExtractID = t.ID) AS ExtractNote FROM tblEmployees t

Jai Krishna

hisouka
Starting Member

28 Posts

Posted - 2009-02-08 : 23:43:35

How About this:

SELECT Name, (SELECT TOP 1 ID FROM tblMain) AS EstimateID, (SELECT Value FROM EstimateValue WHERE ID = EstimateID) as VAlue FROM tblValuation

I want to refer the EstimateID colored in RED to EstimateID Colored in Green
but it produce error that Invalid name for ID colored in REd

sodeep
Master Smack Fu Yak Hacker

7174 Posts

Posted - 2009-02-08 : 23:49:08

quote:
Originally posted by Jai Krishna

Select ID, Name, (SELECT Extract FROM tblExtract WHERE ExtractID = t.ID) AS ExtractNote FROM tblEmployees t

Jai Krishna

What if ID has multiple extracts? It won't work in that scenerio.

Select Z.ID,Z.Name,Y.Extract
from tblEmployees Z 
inner join tblExtract Y
On Z.ID = Y.ID

sodeep
Master Smack Fu Yak Hacker

7174 Posts

Posted - 2009-02-08 : 23:50:55

quote:
Originally posted by hisouka

How About this:

SELECT Name, (SELECT TOP 1 ID FROM tblMain) AS EstimateID, (SELECT Value FROM EstimateValue WHERE ID = EstimateID) as VAlue FROM tblValuation

I want to refer the EstimateID colored in RED to EstimateID Colored in Green
but it produce error that Invalid name for ID colored in REd

Please Explain clearly what you are looking for. Maybe with Sample data and Expected output.

Jai Krishna
Constraint Violating Yak Guru

333 Posts

Posted - 2009-02-08 : 23:51:19

quote:
Originally posted by sodeep

quote:
Originally posted by Jai Krishna

Select ID, Name, (SELECT Extract FROM tblExtract WHERE ExtractID = t.ID) AS ExtractNote FROM tblEmployees t

Jai Krishna

What if ID has multiple extracts? It won't work in that scenerio.

Select Z.ID,Z.Name,Y.Extract
from tblEmployees Z
inner join tblExtract Y
On Z.ID = Y.ID

I have answered assuming that ExtractID ,ID are Identity Columns

Jai Krishna

hisouka
Starting Member

28 Posts

Posted - 2009-02-09 : 00:28:59

SELECT Name, (SELECT TOP 1 ID FROM tblMain) AS EstimateID, (SELECT Value FROM EstimateValue WHERE ID = EstimateID) as VAlue FROM tblValuation

Instead of:

SELECT Name, (SELECT TOP 1 ID FROM tblMain) AS EstimateID, (SELECT Value FROM EstimateValue WHERE ID = (SELECT TOP 1 ID FROM tblMain)) as VAlue FROM tblValuation

repeating (SELECT TOP 1 ID FROM tblMain)

But it produces error

hisouka
Starting Member

28 Posts

Posted - 2009-02-09 : 00:52:12

In Short I want to User Alias from a Sub Query

Jai Krishna
Constraint Violating Yak Guru

333 Posts

Posted - 2009-02-09 : 00:57:47

Try this

SELECT v.Name,m.estimateid,e.value
FROM tblValuation v
INNER JOIN tblMain m ON (v.commoncolid = m.commoncolid)
INNER JOIN EstimateValue e ON (e.id = m.id)
WHERE m.id = 1

Jai Krishna

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2009-02-09 : 03:36:37

quote:
Originally posted by hisouka

SELECT Name, (SELECT TOP 1 ID FROM tblMain) AS EstimateID, (SELECT Value FROM EstimateValue WHERE ID = EstimateID) as VAlue FROM tblValuation

Instead of:

SELECT Name, (SELECT TOP 1 ID FROM tblMain) AS EstimateID, (SELECT Value FROM EstimateValue WHERE ID = (SELECT TOP 1 ID FROM tblMain)) as VAlue FROM tblValuation

repeating (SELECT TOP 1 ID FROM tblMain)

But it produces error

you've not linked tblMain to tblValuation. how are they related? as of now it just takes a random row from tblMain

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