Friday, March 30, 2012
partial transaction is not working
BEGIN TRANSACTION namechange
UPDATE dbo.Employees
SET Title = 'team leader' where FirstName = 'Bishoy'
UPDATE dbo.Employees
SET TitleOfCourtesy = 'Dr' where FirstName = 'Bishoy'
SAVE TRANSACTION namesaved
UPDATE dbo.Employees
SET BirthDate = '8/15/1978' WHERE FirstName = 'Bishoy'
SELECT *
FROM dbo.Employees WHERE FirstName = 'Bishoy'
ROLLBACK TRANSACTION namesaved
COMMIT TRANSACTION namechange
"Bishoy George" <bishoycom@.gmail.com> wrote in message
news:%23RntioSeFHA.3700@.TK2MSFTNGP10.phx.gbl...
> use northwind
> BEGIN TRANSACTION namechange
> UPDATE dbo.Employees
> SET Title = 'team leader' where FirstName = 'Bishoy'
> UPDATE dbo.Employees
> SET TitleOfCourtesy = 'Dr' where FirstName = 'Bishoy'
> SAVE TRANSACTION namesaved
> UPDATE dbo.Employees
> SET BirthDate = '8/15/1978' WHERE FirstName = 'Bishoy'
> SELECT *
> FROM dbo.Employees WHERE FirstName = 'Bishoy'
>
> ROLLBACK TRANSACTION namesaved
> COMMIT TRANSACTION namechange
>
Nope, works perfectly.
Add another
SELECT * FROM dbo.Employees WHERE FirstName = 'Bishoy'
At the end. The BirthDate change is rolled back, but the Title change is
commited.
David
|||Also make sure you don't have an implicit transaction that is nesting your
changes without a commit.
Andrew J. Kelly SQL MVP
"David Browne" <davidbaxterbrowne no potted meat@.hotmail.com> wrote in
message news:eggqJCaeFHA.3848@.TK2MSFTNGP10.phx.gbl...
> "Bishoy George" <bishoycom@.gmail.com> wrote in message
> news:%23RntioSeFHA.3700@.TK2MSFTNGP10.phx.gbl...
> Nope, works perfectly.
> Add another
> SELECT * FROM dbo.Employees WHERE FirstName = 'Bishoy'
> At the end. The BirthDate change is rolled back, but the Title change is
> commited.
> David
>
|||Yes , you are right , thank you.
"David Browne" <davidbaxterbrowne no potted meat@.hotmail.com> wrote in
message news:eggqJCaeFHA.3848@.TK2MSFTNGP10.phx.gbl...
> "Bishoy George" <bishoycom@.gmail.com> wrote in message
> news:%23RntioSeFHA.3700@.TK2MSFTNGP10.phx.gbl...
> Nope, works perfectly.
> Add another
> SELECT * FROM dbo.Employees WHERE FirstName = 'Bishoy'
> At the end. The BirthDate change is rolled back, but the Title change is
> commited.
> David
>
|||You could try save the files you want to attach on a safe place, create a database with same file
structure as you want to have for the one you want to attach, stop SQL server, copy the files you
want to attach over file files for the db you just created and start SQL server. Now, the db is
corrupt to some extent, the question is whether the database will be available with problems in it
or suspect when you start SQL server. MS Support is probably the best route in any case...
Some thoughts:
http://www.karaszi.com/SQLServer/inf...suspect_db.asp
Tibor Karaszi, SQL Server MVP
http://www.karaszi.com/sqlserver/default.asp
http://www.solidqualitylearning.com/
Blog: http://solidqualitylearning.com/blogs/tibor/
"Bishoy George" <bishoycom@.gmail.com> wrote in message
news:%23RntioSeFHA.3700@.TK2MSFTNGP10.phx.gbl...
> use northwind
> BEGIN TRANSACTION namechange
> UPDATE dbo.Employees
> SET Title = 'team leader' where FirstName = 'Bishoy'
> UPDATE dbo.Employees
> SET TitleOfCourtesy = 'Dr' where FirstName = 'Bishoy'
> SAVE TRANSACTION namesaved
> UPDATE dbo.Employees
> SET BirthDate = '8/15/1978' WHERE FirstName = 'Bishoy'
> SELECT *
> FROM dbo.Employees WHERE FirstName = 'Bishoy'
>
> ROLLBACK TRANSACTION namesaved
> COMMIT TRANSACTION namechange
>
>
Monday, March 26, 2012
Parent-child variable issues that may impact deployment
We are using SSIS for the first time. My team is working on a project that involves putting a date time stamp into a series of tables. These tables are being assembled in a series of child packages being executed by the parent. When the parent runs, we evaluate our timestamp variable as a GETDATE() expression and pass it to the children to be included as a derived column. We don't want the actual runtime of each step to be the timestamp, just the start of the batch (parent).
In order to get the variable to pass over to the child, we needed to set the package location to "file system"instead of "SQL Server". It seems unusual that this would be so. Are we doing something wrong?
What implications does this have for deployment? Will we need to customize the packages for each instance we plan to run this on? Can you have a parent run a child package on a different instance? This would be a performance plus since we have really huge source databases and would like to distribute the processing.
Hmmm, my boss just told me to scratch the whole idea of parent-child and go with a control table to store the variable for all the packages to access. Oh well, I'm still interested in why this is so cumbersome when really its just passing a parameter from one procedure to another.
Oh, and I think you could use a spellchecker on this message box. At least I could use one.
In the child package, create a variable to hold the parent variable. Same name is fine. Then in the control flow, right click on the background and select "package configurations".Enable package configurations. Then add a new one. Change the configuration type to "parent package variable." Then, in the specify configuration settings entry, enter the name of the variable in the parent package. Next, on the following screen, select the "value" property of the variable created in your child package. (Expand the child variable until you can select the value property.) Click next. Give the configuration a name and hit finish. Done.
Phil|||
Phil,
Thanks, but we already have that functionality. The problem is that we don't like it. We want something more robust, sort of like passing a parameter from one function to another. And we can't even pass a value parameter with this thingy. This parent-child functionality is just plain ugly. We are using a control table instead, but we don't like doing that either.