Creating an custom application simulating an SQL Server Profiler.

Hi,
I have an requirement for doing some custom action in my
application when any SQL server table is modified. One of the ways,
which I think it is achievable is to write an custom application which
listens to SQL queries fired on the particular Database. This will
enable me to do the custom action, when any DML statement is trapped
through my custom SQL profiler. So, more or less, it boils down to
writing/using something similar to the SQL Profiler tool. Any help
would be appreciated.
Thanks in Advance,
Nimesh
Upgrade to SQL Server 2005 and you will have all those features build-in
<nimeshn@.gmail.com> wrote in message
news:1178447651.122809.119940@.q75g2000hsh.googlegr oups.com...
> Hi,
> I have an requirement for doing some custom action in my
> application when any SQL server table is modified. One of the ways,
> which I think it is achievable is to write an custom application which
> listens to SQL queries fired on the particular Database. This will
> enable me to do the custom action, when any DML statement is trapped
> through my custom SQL profiler. So, more or less, it boils down to
> writing/using something similar to the SQL Profiler tool. Any help
> would be appreciated.
> Thanks in Advance,
> Nimesh
>
|||Thanks for the suggestion, Uri. I think you are referring to query
notifications feature in SQL server 2005. But, I got to have this
custom application to work with SQL server 2000 as well.
On May 6, 3:53 pm, "Uri Dimant" <u...@.iscar.co.il> wrote:
> Upgrade toSQLServer2005 and you will have all those features build-in
> <nime...@.gmail.com> wrote in message
> news:1178447651.122809.119940@.q75g2000hsh.googlegr oups.com...
>
>
> - Show quoted text -

Creating an custom application simulating an SQL Server Profiler.

Hi,
I have an requirement for doing some custom action in my
application when any SQL server table is modified. One of the ways,
which I think it is achievable is to write an custom application which
listens to SQL queries fired on the particular Database. This will
enable me to do the custom action, when any DML statement is trapped
through my custom SQL profiler. So, more or less, it boils down to
writing/using something similar to the SQL Profiler tool. Any help
would be appreciated.
Thanks in Advance,
NimeshUpgrade to SQL Server 2005 and you will have all those features build-in
<nimeshn@.gmail.com> wrote in message
news:1178447651.122809.119940@.q75g2000hsh.googlegroups.com...
> Hi,
> I have an requirement for doing some custom action in my
> application when any SQL server table is modified. One of the ways,
> which I think it is achievable is to write an custom application which
> listens to SQL queries fired on the particular Database. This will
> enable me to do the custom action, when any DML statement is trapped
> through my custom SQL profiler. So, more or less, it boils down to
> writing/using something similar to the SQL Profiler tool. Any help
> would be appreciated.
> Thanks in Advance,
> Nimesh
>|||Thanks for the suggestion, Uri. I think you are referring to query
notifications feature in SQL server 2005. But, I got to have this
custom application to work with SQL server 2000 as well.
On May 6, 3:53 pm, "Uri Dimant" <u...@.iscar.co.il> wrote:
> Upgrade toSQLServer2005 and you will have all those features build-in
> <nime...@.gmail.com> wrote in message
> news:1178447651.122809.119940@.q75g2000hsh.googlegroups.com...
>
> > Hi,
> > I have an requirement for doing somecustomaction in my
> >applicationwhen anySQLservertable is modified. One of the ways,
> > which I think it is achievable is to write ancustomapplicationwhich
> > listens toSQLqueries fired on the particular Database. This will
> > enable me to do thecustomaction, when any DML statement is trapped
> > through mycustomSQLprofiler. So, more or less, it boils down to
> > writing/using something similar to theSQLProfilertool. Any help
> > would be appreciated.
> > Thanks in Advance,
> > Nimesh- Hide quoted text -
> - Show quoted text -

Creating an custom application simulating an SQL Server Profiler.

Hi,
I have an requirement for doing some custom action in my
application when any SQL server table is modified. One of the ways,
which I think it is achievable is to write an custom application which
listens to SQL queries fired on the particular Database. This will
enable me to do the custom action, when any DML statement is trapped
through my custom SQL profiler. So, more or less, it boils down to
writing/using something similar to the SQL Profiler tool. Any help
would be appreciated.
Thanks in Advance,
NimeshUpgrade to SQL Server 2005 and you will have all those features build-in
<nimeshn@.gmail.com> wrote in message
news:1178447651.122809.119940@.q75g2000hsh.googlegroups.com...
> Hi,
> I have an requirement for doing some custom action in my
> application when any SQL server table is modified. One of the ways,
> which I think it is achievable is to write an custom application which
> listens to SQL queries fired on the particular Database. This will
> enable me to do the custom action, when any DML statement is trapped
> through my custom SQL profiler. So, more or less, it boils down to
> writing/using something similar to the SQL Profiler tool. Any help
> would be appreciated.
> Thanks in Advance,
> Nimesh
>|||Thanks for the suggestion, Uri. I think you are referring to query
notifications feature in SQL server 2005. But, I got to have this
custom application to work with SQL server 2000 as well.
On May 6, 3:53 pm, "Uri Dimant" <u...@.iscar.co.il> wrote:
> Upgrade toSQLServer2005 and you will have all those features build-in
> <nime...@.gmail.com> wrote in message
> news:1178447651.122809.119940@.q75g2000hsh.googlegroups.com...
>
>
>
> - Show quoted text -sql

Creating an Audit trail on a table using a trigger

Hi,
This is kind of following on from my last couple of posts regarding Identity
columns and so on.
Basically, I want to ensure that for a particular table, every row has a
numeric reference. This reference must be unique and gapless. Ideally it
should order in the sequence of the records being inserted however this
isn't an absolute requirement.
From my (limited) understanding of SQLS, I think I can achieve this with a
FOR INSERT Trigger - in that the trigger is fired every time a row is
inserted and the trigger is the same transaction as the initial insert hence
I avoid any concurrency issues.
However I'm not completely sure how to achieve this. I think that my trigger
should be along the lines of this...
CREATE TRIGGER AssignAuditReference ON tblBooking
FOR INSERT
AS
DECLARE @.Ref int
--Get the highest reference and add one.
SELECT @.Ref = isnull(max(job_id),0)+1 from tblBooking
--Update the inserted row to have a booking_referecen of the new reference
obtained above.
Update tblBooking
SET Booking_Reference = @.ref
WHERE Booking_ID = INSERTED.Booking_ID
However I'm getting problems with the INSERTED table not being recognised.
I understood that the INSERTED table contained the row that the insert that
started the trigger inserted.
Two questions:
1. Where am I going wrong with my trigger. Have I misunderstood some key
point of using triggers.
2. Is this the right approach to achieve what I am after? Are there any
better approaches...Hi Chris,
You have to mention the Inserted Table in your Update Query
Update tblBooking
SET tblBooking.Booking_Reference = @.Ref
FROM tblBooking
INNER JOIN INSERTED
ON (tblBooking.Booking_ID= INSERTED.Booking_ID)
Because of the lack between getting the @.Ref-Value and writing it in the
table i would prefer an inline Query and Update
Update tblBooking
SET tblBooking.Booking_Reference = NewJobIdTable.NewJobId
FROM tblBooking,
(
Select ISNULL(MAX(job_id),0)+1 AS NewJobId from tblBooking
) NewJobIdTable
INNER JOIN INSERTED
ON (tblBooking.Booking_ID= INSERTED.Booking_ID)
HTH, Jens Smeyer.
http://www.sqlserver2005.de
--
"Chris Strug" <hotmail@.solace1884.com> schrieb im Newsbeitrag
news:eBcd9GOQFHA.1392@.TK2MSFTNGP10.phx.gbl...
> Hi,
> This is kind of following on from my last couple of posts regarding
> Identity
> columns and so on.
> Basically, I want to ensure that for a particular table, every row has a
> numeric reference. This reference must be unique and gapless. Ideally it
> should order in the sequence of the records being inserted however this
> isn't an absolute requirement.
> From my (limited) understanding of SQLS, I think I can achieve this with a
> FOR INSERT Trigger - in that the trigger is fired every time a row is
> inserted and the trigger is the same transaction as the initial insert
> hence
> I avoid any concurrency issues.
> However I'm not completely sure how to achieve this. I think that my
> trigger
> should be along the lines of this...
> CREATE TRIGGER AssignAuditReference ON tblBooking
> FOR INSERT
> AS
> DECLARE @.Ref int
> --Get the highest reference and add one.
> SELECT @.Ref = isnull(max(job_id),0)+1 from tblBooking
> --Update the inserted row to have a booking_referecen of the new
> reference
> obtained above.
> Update tblBooking
> SET Booking_Reference = @.ref
> WHERE Booking_ID = INSERTED.Booking_ID
> However I'm getting problems with the INSERTED table not being recognised.
> I understood that the INSERTED table contained the row that the insert
> that
> started the trigger inserted.
> Two questions:
> 1. Where am I going wrong with my trigger. Have I misunderstood some key
> point of using triggers.
> 2. Is this the right approach to achieve what I am after? Are there any
> better approaches...
>|||Syntactically, your UPDATE statement is missing the FROM clasue:
UPDATE tblBooking
SET Booking_Reference = @.ref
FROM tblBooking , INSERTED
WHERE Booking_ID = INSERTED.Booking_ID
1) This will FAIL if more than one row is inserted - not a good idea
for maintaining an audit trail. 2) I don't see what advantage this has
over the more concise and reliable solution(s) already discussed in
your earlier threads. For example:
INSERT INTO tblBooking (booking_reference, x, y, z, ...)
SELECT COALESCE(MAX(booking_reference),0)+1, 'foo', 'bar', 1234, ...
FROM tblBooking
IMO an incrementing counter is a poor way to maintain an audit trail
anyway. Why not just store the CURRENT_TIMESTAMP on each row and then
preserve the history of changes to rows? This is easy to do in triggers
or in your data access code and doesn't suffer the inevitable and
serious blocking problems that your approach implies.
David Portas
SQL Server MVP
--|||"David Portas" <REMOVE_BEFORE_REPLYING_dportas@.acm.org> wrote in message
news:1113478283.991829.222620@.g14g2000cwa.googlegroups.com...
> Syntactically, your UPDATE statement is missing the FROM clasue:
> UPDATE tblBooking
> SET Booking_Reference = @.ref
> FROM tblBooking , INSERTED
> WHERE Booking_ID = INSERTED.Booking_ID
> 1) This will FAIL if more than one row is inserted - not a good idea
> for maintaining an audit trail. 2) I don't see what advantage this has
> over the more concise and reliable solution(s) already discussed in
> your earlier threads. For example:
> INSERT INTO tblBooking (booking_reference, x, y, z, ...)
> SELECT COALESCE(MAX(booking_reference),0)+1, 'foo', 'bar', 1234, ...
> FROM tblBooking
> IMO an incrementing counter is a poor way to maintain an audit trail
> anyway. Why not just store the CURRENT_TIMESTAMP on each row and then
> preserve the history of changes to rows? This is easy to do in triggers
> or in your data access code and doesn't suffer the inevitable and
> serious blocking problems that your approach implies.
> --
> David Portas
> SQL Server MVP
> --
>
First of all thanks to both David and Jens for their replies.
Apologies for repeating myself, I just want to make sure that I understand
what I'm doing rather than repeating it parrot fashion into my database.
Regarding the trigger, I was under the impression that the trigger would
occur for every new row, I gather that it in fact applies to every INSERT.
Ahh... That makes things clearer.
Regards the actual implementation (TIMESTAMP vs. numeric reference),
unfortunately this is out of my hands. I've been informed that this a is a
non negotiatable requirement. What can you do?
if I may ask one more question, assuming that I did attempt to implement my
apprioach using triggers, could you expand on the blocking problems that you
would expect me to face?
Anyway, thank you once again for taking the time to help me, I do appreciate
it.
Regards
Chris.

Creating an asynchrous output

Are there any good examples creating an asychronous output. I need to be able to output the values from the input as well as adding 7 new columns to each row.

http://msdn2.microsoft.com/en-us/library/ms136133.aspx

The answers are available, you just need to search for them. I found the link above by typing "asynchronous component code ssis" into Google.

-Jamie

|||

Also, be aware that just because you need to add columns to a row does not mean that you need to use an async output. You need to use an async output only if you need to hold onto data longer that the ProcessInput call or if you need to generate more rows going out than coming in. Generally, if one of those 2 conditions don't apply then you can use a sync output, which I would highly recommend because it is significantly simpler.

HTH,

Matt

|||

Matt David wrote:

Also, be aware that just because you need to add columns to a row does not mean that you need to use an async output. You need to use an async output only if you need to hold onto data longer that the ProcessInput call or if you need to generate more rows going out than coming in. Generally, if one of those 2 conditions don't apply then you can use a sync output, which I would highly recommend because it is significantly simpler.

HTH,

Matt

And it executes quicker!

Creating an associative table using SQL as values change ....

I have a table in a database however there are no pk-fk relationships in the
schema.
So i need to create a view/temp table which relates the Sublevels to the Top
Level values.
For example, i have the following table:
Name LV_Level LV_ID
Admin 1 1
HR 1 8
Ops 1 11
Issuer 2 12
Acquirer 2 13
. . .
. . .
Shared Serv 1 19
Finance 2 20
Facilities 2 21
Legal 2 22
The level 2s and greater indicate sublevels to the level 1.
What i need to be able to do is create a hierarchy so that Issuer (2) and
Acquirer (2) belong to Ops (Level 1, ID 11)
and that Finance (2), Facilities (2) and Legal (2) belong to Shared Serv
(Level 1, ID 19).
The LV_ID gets renumbered as new values in the Application are added to the
database. There is another column not shown that acts a pk/uid, but there is
no relationship in this table other than a sequential renumbering of LV_ID.
So if i add anouther value under Ops, Shared Serv may get renumbered to 20
and all the items below it are renumbered as well.
I need to be able account for growth in the tables are new values are added.
I was thinking of something along the results of:
LV_ID Level_Reports_to
1 1
8 8
11 11
12 11
13 11
19 19
20 19
21 19
22 19
I've tried various ways and am not accomplishing the results above.
Any hints on syntax in SQL would be appreciated.On Tue, 13 Sep 2005 08:01:56 -0600, TroyS wrote:

>I have a table in a database however there are no pk-fk relationships in th
e
>schema.
Hi TroyS,
Fix that first, please. Every table should have a primary key. Every
relationship should be enforced by a FK constraint. Omitting that basic
rule of relational databases is asking for garbage in your data.

>So i need to create a view/temp table which relates the Sublevels to the To
p
>Level values.
>For example, i have the following table:
(snip)
>I need to be able account for growth in the tables are new values are added
.
>I was thinking of something along the results of:
>LV_ID Level_Reports_to
>1 1
> 8 8
>11 11
>12 11
>13 11
>19 19
>20 19
>21 19
>22 19
>I've tried various ways and am not accomplishing the results above.
>Any hints on syntax in SQL would be appreciated.
I'm not sure if this is the best way to store your data, though I'm very
sure that it's a whole lot better than your current way!
Order a copy of Joe Celko's Trees and Hierarchies in SQL For Smarties
now, and read it when you have it to find out all you want to know (and
more) about good and bad ways to model this kind of data.
Anyway, for now I'll give you a query that will hopefully convert your
current mess in the somewhat better version you're asking for:
INSERT INTO BetterTable (LV_ID, Level_Reports_to)
SELECT a.LV_ID,
CASE
WHEN a.LV_Level = 1
THEN a.LV_ID
ELSE (SELECT MAX(b.LV_ID)
FROM BadTable AS b
WHERE b.LV_Level = 1
AND b.LV_ID < a.LV_ID)
END
FROM BadTable AS a
(Untested - see www.aspfaq.com/5006 if you prefer a tested version).
Best, Hugo
--
(Remove _NO_ and _SPAM_ to get my e-mail address)|||Hugo,
thx for the info
I realize the schema is flawed, however, this isn't an appl i'm writing.
it's a 3rd party,commercial appl and therefore i can't change the
schema.
If the schema had pk-fk relationships, then i wouldn't need some
help...
i will take a look at the query...thx for the help.
*** Sent via Developersdex http://www.examnotes.net ***

Creating an Assembly that calls a COM object

Hi,
I am trying to create an Assembly in SQL Server 2005 that calls a C# DLL
which in turn calls some COM stuff. I get an error message in SQL Server 200
5
related to COM interoperability (does not exist in SQL catalog). I can give
you the exact error message if needed. Any ideas on how this can be handled?
Appreciate any help. Thanks.Can anyone help me with my question? Thanks.
"KMP" wrote:

> Hi,
> I am trying to create an Assembly in SQL Server 2005 that calls a C# DLL
> which in turn calls some COM stuff. I get an error message in SQL Server 2
005
> related to COM interoperability (does not exist in SQL catalog). I can giv
e
> you the exact error message if needed. Any ideas on how this can be handle
d?
> Appreciate any help. Thanks.|||Hello KMP,
Providing the error and code in question is always a good idea. Did you cata
log
the assembly as unsafe?
Thank you,
Kent Tegels
DevelopMentor
http://staff.develop.com/ktegels/|||Here is the error message (below) that I get when I try to create an
assembly in SQL Server2005 pointing to Test.dll (just an example name).
Test.dll (which is C# dll) refers to some COM objects inside it. I thinking
that is what is causing the Assembly to fail. I hope this info is good
enough. Please let me know if I need to pass on any more info. Thanks.
========================================
=============
Assembly "interop.testlib,
version=0.0.0.0,culture=neutral,publickeytoken=null" was not found in SQL
catalog
========================================
=============
"Kent Tegels" wrote:

> Hello KMP,
> Providing the error and code in question is always a good idea. Did you ca
talog
> the assembly as unsafe?
> Thank you,
> Kent Tegels
> DevelopMentor
> http://staff.develop.com/ktegels/
>
>|||Hello KMP,

> Here is the error message (below) that I get when I try to create an
> assembly in SQL Server2005 pointing to Test.dll (just an example
> name). Test.dll (which is C# dll) refers to some COM objects inside
> it. I thinking that is what is causing the Assembly to fail. I hope
> this info is good enough. Please let me know if I need to pass on any
> more info. Thanks.
Its been ages since I need to do something like this from even regular .NET.
My first thought is that you probably need to run TLBIMP and get a PIA into
the directory with your DLL so that it also catalogs it. You may also have
to manually deploy it.
I'm pushing this over to the CLR newsgroup and we'll see if Niels chimes
in with additional thoughts.
Thank you,
Kent Tegels
DevelopMentor
http://staff.develop.com/ktegels/|||I was wondering if anyone could help me with this issue. Thanks in
anticipation...
"Kent Tegels" wrote:

> Hello KMP,
>
> Its been ages since I need to do something like this from even regular .NE
T.
> My first thought is that you probably need to run TLBIMP and get a PIA int
o
> the directory with your DLL so that it also catalogs it. You may also have
> to manually deploy it.
> I'm pushing this over to the CLR newsgroup and we'll see if Niels chimes
> in with additional thoughts.
> Thank you,
> Kent Tegels
> DevelopMentor
> http://staff.develop.com/ktegels/
>
>|||examnotes <KMP@.discussions.microsoft.com> wrote in news:88F5ED5D-
B63B-436D-AB35-B5B90AA66C75@.microsoft.com:

> I was wondering if anyone could help me with this issue. Thanks in
> anticipation...
>
Sorry, I didn't see this post until now. Can you please re-post the issue
you have.
Niels
****************************************
**********
* Niels Berglund
* http://staff.develop.com/nielsb
* nielsb at develop dot com
* "A First Look at SQL Server 2005 for Developers"
* http://www.awprofessional.com/title/0321180593
****************************************
**********|||I am trying to create an Assembly in SQL Server 2005 that calls a C# DLL
which in turn calls some COM stuff. I get an error message in SQL Server 200
5
related to COM interoperability (does not exist in SQL catalog). I can give
you the exact error message if needed. Thanks.
"KMP" wrote:

> Hi,
> I am trying to create an Assembly in SQL Server 2005 that calls a C# DLL
> which in turn calls some COM stuff. I get an error message in SQL Server 2
005
> related to COM interoperability (does not exist in SQL catalog). I can giv
e
> you the exact error message if needed. Any ideas on how this can be handle
d?
> Appreciate any help. Thanks.|||Hello KMP,

> I am trying to create an Assembly in SQL Server 2005 that calls a C#
> DLL which in turn calls some COM stuff. I get an error message in SQL
> Server 2005 related to COM interoperability (does not exist in SQL
> catalog). I can give you the exact error message if needed. Thanks.
Reposting to m.p.ss.clr, please continue thread there.
Thank you,
Kent Tegels
DevelopMentor
http://staff.develop.com/ktegels/|||What is "m.p.ss.clr"?
"Kent Tegels" wrote:

> Hello KMP,
>
> Reposting to m.p.ss.clr, please continue thread there.
> Thank you,
> Kent Tegels
> DevelopMentor
> http://staff.develop.com/ktegels/
>
>