Dynamic Select/Update Statement Possible?

Would it be possible to retrieve a "dynamically" named field from a table by using an input parameter?

For example, if a table has fields named Semester1, Semester2, Semester3, Semester4, and I was lazy and only wanted to create one stored procedure for all semesters could I do the following...

ALTER PROCEDURE u_sp_x
@.semester int
AS
Select Semester@.semester
From ThisTable

Just curious.

Thanks,
Steve HanzelmanThis might work..

alter procedure u_sp_x
@.semester int
as
select * from semester
where @.semester = 'semester 1'|||You CAN do just about anything. Dynamic SQL statements would be required here, or a UNION query or complicated WHERE clause. But whether you SHOULD do it is another think entirely. Dynamic SQL statements are a pain in the butt, and should be avoided, and thus are definitely more for masochistic DBAs than lazy DBAs.

Your problem, as is often the case, is that you are having to code around a deficiency in the design of your tables. You should have a table that stores each Semester's value as a separate record. Then your application will also be easily adaptable to situations where three or five semesters are allowed, or half-semesters, or quarters, or whatever.|||Blindman,
I agree re: the design of the tables/database. Unfortunately, it is one that was inherited and belongs to an application that was purchased by my employer. Therein lies the rub...can't modify so I'm try to save a few steps.

Oh well, I'm guessing four procedures.

Thanks for the help.|||OK...

First, I have seen WAY too many slick apps that pretend to be cute..they are MAJOR pain to debug.

The smaller you make your sprocs, the better. And the less dynamic sql the better.

So with that said...the keys to the kingdom

USE Northwind
GO

CREATE PROC mySproc99 @.COLUMN_NAME sysname, @.TABLE_NAME sysname
AS
DECLARE @.sql varchar(8000)

SELECT @.sql = 'SELECT ' + @.COLUMN_NAME + ' FROM ' + @.TABLE_NAME

EXEC(@.sql)
GO

EXEC mySproc99 'ShipName','Orders'
GO

DROP PROC mySproc99
GO|||Brett proposing dynamic SQL?! :eek:

What's the weather forecast in Hell, today? ;)|||I was thinking this, but forgot...

Becareful out there...

And

Abandon all hope for ye who enter here...

Only dynamic sql I use is for admin purposes...never in an application

(Some would say some of my admin procedures amount to a mini mainframe application...but that a story for another margarita...COME ON 5:00!)

Dynamic query to store record count in variable??

Hello everyone,
I am attempting to write a stored procedure to retrieve the record count but
have failed so far. Here's what I have tried...
SET @.value = 'SELECT COUNT(*) FROM ' + @.tablea
EXECUTE sp_executesql @.sql
...but this just ends up displaying the count to the screen, so I did...
SET @.value = 'DECLARE @.tablea_count NVARCHAR(128) SELECT
@.tablea_count=COUNT(*) FROM ' + @.tablea
EXECUTE sp_executesql @.sql, @.tablea_count OUTPUT
but this doesnt seem to work either.
Help?
--
ChrisHave a look here:
http://www.sommarskog.se/dynamic_sql.html
http://www.support.microsoft.com/?id=262499
Andrew J. Kelly SQL MVP
"Chris" <Chris@.discussions.microsoft.com> wrote in message
news:292BA190-F8FD-4696-A6EA-8EE930095F5A@.microsoft.com...
> Hello everyone,
> I am attempting to write a stored procedure to retrieve the record count
> but
> have failed so far. Here's what I have tried...
> SET @.value = 'SELECT COUNT(*) FROM ' + @.tablea
> EXECUTE sp_executesql @.sql
> ...but this just ends up displaying the count to the screen, so I did...
> SET @.value = 'DECLARE @.tablea_count NVARCHAR(128) SELECT
> @.tablea_count=COUNT(*) FROM ' + @.tablea
> EXECUTE sp_executesql @.sql, @.tablea_count OUTPUT
> but this doesnt seem to work either.
> Help?
> --
> Chris

Dynamic query to store record count in variable??

Hello everyone,
I am attempting to write a stored procedure to retrieve the record count but
have failed so far. Here's what I have tried...
SET @.value = 'SELECT COUNT(*) FROM ' + @.tablea
EXECUTE sp_executesql @.sql
...but this just ends up displaying the count to the screen, so I did...
SET @.value = 'DECLARE @.tablea_count NVARCHAR(128) SELECT
@.tablea_count=COUNT(*) FROM ' + @.tablea
EXECUTE sp_executesql @.sql, @.tablea_count OUTPUT
but this doesnt seem to work either.
Help?
Chris
Have a look here:
http://www.sommarskog.se/dynamic_sql.html
http://www.support.microsoft.com/?id=262499
Andrew J. Kelly SQL MVP
"Chris" <Chris@.discussions.microsoft.com> wrote in message
news:292BA190-F8FD-4696-A6EA-8EE930095F5A@.microsoft.com...
> Hello everyone,
> I am attempting to write a stored procedure to retrieve the record count
> but
> have failed so far. Here's what I have tried...
> SET @.value = 'SELECT COUNT(*) FROM ' + @.tablea
> EXECUTE sp_executesql @.sql
> ...but this just ends up displaying the count to the screen, so I did...
> SET @.value = 'DECLARE @.tablea_count NVARCHAR(128) SELECT
> @.tablea_count=COUNT(*) FROM ' + @.tablea
> EXECUTE sp_executesql @.sql, @.tablea_count OUTPUT
> but this doesnt seem to work either.
> Help?
> --
> Chris
sql

Dynamic query to store record count in variable??

Hello everyone,
I am attempting to write a stored procedure to retrieve the record count but
have failed so far. Here's what I have tried...
SET @.value = 'SELECT COUNT(*) FROM ' + @.tablea
EXECUTE sp_executesql @.sql
...but this just ends up displaying the count to the screen, so I did...
SET @.value = 'DECLARE @.tablea_count NVARCHAR(128) SELECT
@.tablea_count=COUNT(*) FROM ' + @.tablea
EXECUTE sp_executesql @.sql, @.tablea_count OUTPUT
but this doesnt seem to work either.
Help?
--
ChrisHave a look here:
http://www.sommarskog.se/dynamic_sql.html
http://www.support.microsoft.com/?id=262499
--
Andrew J. Kelly SQL MVP
"Chris" <Chris@.discussions.microsoft.com> wrote in message
news:292BA190-F8FD-4696-A6EA-8EE930095F5A@.microsoft.com...
> Hello everyone,
> I am attempting to write a stored procedure to retrieve the record count
> but
> have failed so far. Here's what I have tried...
> SET @.value = 'SELECT COUNT(*) FROM ' + @.tablea
> EXECUTE sp_executesql @.sql
> ...but this just ends up displaying the count to the screen, so I did...
> SET @.value = 'DECLARE @.tablea_count NVARCHAR(128) SELECT
> @.tablea_count=COUNT(*) FROM ' + @.tablea
> EXECUTE sp_executesql @.sql, @.tablea_count OUTPUT
> but this doesnt seem to work either.
> Help?
> --
> Chris

Dynamic MDX Deployement in Reporting Services

I have created a Reporting Services report that uses MDX to retrieve data
from a cube. The MDX statements must use a parameter so they are placed into
text strings. The report will run with the Dynamic MDX in Visual Studio but
when I deploy it to the Web Server it locks up.
I believe that the dynamic MDX is causing the problem. The reports that
connect to the Cube that do not use parameters run fine on the web.
Any advice would be appreciated.
Thanks.I found this to be very helpful with parameterized MD
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnsql2k/html/olapasandrs.asp
"AndyT" wrote:
> I have created a Reporting Services report that uses MDX to retrieve data
> from a cube. The MDX statements must use a parameter so they are placed into
> text strings. The report will run with the Dynamic MDX in Visual Studio but
> when I deploy it to the Web Server it locks up.
> I believe that the dynamic MDX is causing the problem. The reports that
> connect to the Cube that do not use parameters run fine on the web.
> Any advice would be appreciated.
> Thanks.

Dynamic Date/Calendar

Hey,
I have a financial query that has to retrieve sales totals for each day of
the month for the current year and prior year. Some days though (current an
d
prior) don't have any sales on those days so I still have to return zero. I
have this working just fine...but to do it I created a month_day_year table
that has all the month/day/year columns in it. I join to this and thus am
always assured to have rows/columns returned regardless if there are sales
for those days. The problem is the maintenance of this month_day table. If I
forget to add new months...things go bad. Surely there has to be a better wa
y
to do this...like some way to dynamically generate the month/day/year idea a
t
query run time...and not use this table to join to to ensure I get something
whether data is there or not.
Thanks in advance,
Paul
--
---
Jackson-Reed, Inc. www.jacksonreed.comActually, a calendar table is a great way to handle financial data like
this. As you know fiscal periods don't always line up to calendar
periods; a calendar table let yous manage this and other problems.
Managing this table shouldn't be a big deal; 10 years of days is only
slightly more than 3600 rows; 20 years is still less than 10,000 rows
of data, which should be nothing to manage. I would just generate the
calendar entries for 10 to 20 years, and leave it alone.
Stu|||> for those days. The problem is the maintenance of this month_day table. If
> I
> forget to add new months...things go bad.
Why do you need to add months and days in an ongoing fashion? Just put the
next 30 years in the table, and you might have to think about it again once
before you retire. 10,000 rows is less stressful than a walk in the park
for SQL Server.
http://www.aspfaq.com/2519

Dynamic column width? Any way to do it?

Hi,

Is there a way to dynamically change the column width depends on the length of the data retrieved? Meaning, if I retrieve a number 11.0031243 or 11.3, it should fit into the column just nice with no redundant spaces. The width of the header should follows.

Is that possible?

Thanks!Ya its possible but u need to calculate the length of the retrieved field and accordingly u can adjust width of the column in Cystal Rpt...
Before that at the time of testing u need to confirm how many characters u can place in ur column field...
if u have any query abt this soln pls tell me....