Click here to Skip to main content
15,923,164 members
Home / Discussions / Database
   

Database

 
Questionsql query problem Pin
pitwi27-Jul-22 23:06
pitwi27-Jul-22 23:06 
AnswerRe: sql query problem Pin
Richard Deeming27-Jul-22 23:54
mveRichard Deeming27-Jul-22 23:54 
GeneralRe: sql query problem Pin
jsc4217-Aug-22 6:20
professionaljsc4217-Aug-22 6:20 
GeneralRe: sql query problem Pin
Richard Deeming17-Aug-22 6:26
mveRichard Deeming17-Aug-22 6:26 
GeneralRe: sql query problem Pin
jsc4217-Aug-22 22:40
professionaljsc4217-Aug-22 22:40 
Question.sql script in c# Pin
Member 1373522830-Jun-22 2:15
Member 1373522830-Jun-22 2:15 
AnswerRe: .sql script in c# Pin
Dave Kreskowiak30-Jun-22 3:59
mveDave Kreskowiak30-Jun-22 3:59 
QuestionPivot works, but spread column values not as expected Pin
#realJSOP19-Jun-22 1:58
professional#realJSOP19-Jun-22 1:58 
I have a table with the following schema:
SQL
DECLARE @images TABLE
(
    [Id]        BIGINT         NOT NULL,
    [UserId]    NVARCHAR(450)  NOT NULL,
    [VehID]     BIGINT         NOT NULL,
    [VehImage]  VARBINARY(MAX) NULL
);
There are no exactly 10 rows per user. Currently, all VehImage columns are null (intentionally).

Here is my sql query (@images is a table variable that I pre-populate with the desired records):

SQL
SELECT	UserId,VehID 
        ,[Image1],[Image2],[Image3],[Image4],[Image5]
        ,[Image6],[Image7],[Image8],[Image9],[Image10]
FROM	(
            SELECT	UserId 
                    ,VehID
                    ,VehImage
            FROM	@images
        ) AS SourceTable
PIVOT	(
            Count(VehImage)
            FOR VehImage IN ([Image1],[Image2],[Image3]
							,[Image4],[Image5],[Image6]
							,[Image7],[Image8],[Image9]
							,[Image10])
        ) AS PivotTable;
I have the pivot working, in that I get exactly one row back with the expected UserId, and VehId, and 10 image columns. My problem is that the Image columns all have the value 0 instead of the expected null.

What am I doing that would cause that?

EDIT ----------------------------------------

I changed the aggregate function from count to max, and all of the images are now showing null as expected. I don't know yet if that's the ultimate solution.

EDIT #2 -------------------------------------

Nope, I plugged a fake value into the first image record, and all of the image columns are still coming back as null...
".45 ACP - because shooting twice is just silly" - JSOP, 2010
-----
You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
-----
When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013


modified 19-Jun-22 8:13am.

AnswerRe: Pivot works, but spread column values not as expected Pin
Richard Deeming19-Jun-22 21:52
mveRichard Deeming19-Jun-22 21:52 
GeneralRe: Pivot works, but spread column values not as expected Pin
#realJSOP19-Jun-22 22:20
professional#realJSOP19-Jun-22 22:20 
GeneralRe: Pivot works, but spread column values not as expected Pin
Richard Deeming19-Jun-22 22:36
mveRichard Deeming19-Jun-22 22:36 
GeneralRe: Pivot works, but spread column values not as expected Pin
#realJSOP19-Jun-22 23:19
professional#realJSOP19-Jun-22 23:19 
QuestionDatabase design for a project Pin
Gopika Ravikumar16-Jun-22 6:35
Gopika Ravikumar16-Jun-22 6:35 
AnswerRe: Database design for a project Pin
Craig Robbins16-Jun-22 7:31
Craig Robbins16-Jun-22 7:31 
AnswerRe: Database design for a project Pin
Mycroft Holmes16-Jun-22 12:44
professionalMycroft Holmes16-Jun-22 12:44 
AnswerRe: Database design for a project Pin
Gopika Ravikumar30-Oct-22 4:38
Gopika Ravikumar30-Oct-22 4:38 
QuestionHow to get this result in oracle database? Pin
HowardCheng22-May-22 4:58
professionalHowardCheng22-May-22 4:58 
AnswerRe: How to get this result in oracle database? Pin
Mycroft Holmes22-May-22 13:18
professionalMycroft Holmes22-May-22 13:18 
QuestionSQL SERVER STORE PROCEDURE Pin
Luis M. Rojas28-Apr-22 3:45
Luis M. Rojas28-Apr-22 3:45 
AnswerRe: SQL SERVER STORE PROCEDURE Pin
Richard Deeming28-Apr-22 4:34
mveRichard Deeming28-Apr-22 4:34 
AnswerRe: SQL SERVER STORE PROCEDURE Pin
Mycroft Holmes28-Apr-22 11:59
professionalMycroft Holmes28-Apr-22 11:59 
GeneralRe: SQL SERVER STORE PROCEDURE Pin
jschell8-May-22 8:07
jschell8-May-22 8:07 
QuestionGiven two dates, count the number of dates in the range that is within month X Pin
Jame_T13-Apr-22 3:43
Jame_T13-Apr-22 3:43 
AnswerRe: Given two dates, count the number of dates in the range that is within month X Pin
Craig Robbins13-Apr-22 4:10
Craig Robbins13-Apr-22 4:10 
AnswerRe: Given two dates, count the number of dates in the range that is within month X Pin
CHill6020-Apr-22 7:04
mveCHill6020-Apr-22 7:04 

General General    News News    Suggestion Suggestion    Question Question    Bug Bug    Answer Answer    Joke Joke    Praise Praise    Rant Rant    Admin Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.