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by: extmb |
last post by:
Hi,
I am quite puzzled how SQLServer manages transactions.
Whatever the isolation level I set when performing an insertion, other
connections do not have access to the table in select mode.
Example in SQL Analyzer:
create table foo (
id numeric(10),
data varchar(100)
)
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by: Leaf |
last post by:
Greetings,
I've been reading with interest the threads here on deadlocking, as I'm
finding my formerly happy app in a production environment suddenly
deadlocking left and right. It started around the time I decided to
wrap a series of UPDATE commands with BEGIN/END.
The gist of it is I have a .NET app that can do some heavy reading (no
writing) from tblWOS. It can take a minute or so to read all the data
into the app, along with data...
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by: Eddie |
last post by:
I wondering which one of the following I should use to get the best
performance.
1. "SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED"
OR
2. "WITH (NOLOCK)"
I notice that when I use the #1 "SET TRANSACTION..." it sets a lock Mode
type of "Sch-S" (Schema stability Lock) which described by SQL Books
Online as "Schema stability (Sch-S) locks do not block any transactional
locks, including exclusive (X) locks"
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by: Eric Porter |
last post by:
Dear All,
I have a VB6.COM program using a VB6.COM DLL, which in turn uses ADODB that
performs various bits of SQL.
I have re-written the VB6.COM DLL in C#.NET (with a VB6 shell), which uses
the ADODB.Interop library supplied with .NET. The VB6.COM program above
calls this C#.NET library in an effort to perform the equivalent
functionality.
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by: Mike P |
last post by:
I am using transactions on my website and the Isolation Level is
ReadCommitted. Since the website has a lot of traffic this may be
causing it to lock up every now and again.
Can somebody tell me what IsolationLevel I should use if I want the user
to be able to read while a record is being inserted/updated, as I'm not
sure that the Isolation Level I am using is the right one to go for.
Any assistance would be really appreciated.
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by: kanda |
last post by:
Hello.
I am developing the application (VBA&ODBC, to be exact) which
periodically calls the stored procedures in the IBM DB2. A few of the
procedures require executing with isolation level RR ( ANSI
"SERIALIZABLE" ), not the default; default is CS (ANSI "Read
Committed")). The procedure language is SQL.
According to the documentation, I can adjust procedure *run*-time
isolation level by setting *compile*-time dataserver-wide option
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by: joshsackett |
last post by:
I am redesigning an application that distributes heldesk tickets to our
50 engineers automatically. When the engineer logs into their window a
stored procedure executes that searches through all open tickets and
assigns a predetermined amount of the open tickets to that engineer.The
problem I am running into is that if 2 or more engineers log in at the
same time the stored procedure will distribute the same set of tickets
multiple times.
...
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by: Christian Stooker |
last post by:
Part one:
======
Hi !
I want to use SQLite database like the FireBird database: with big
isolation level.
What's that meaning ?
I have an application that periodically check some input directory,
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by: Bob Stearns |
last post by:
If I'm in a transaction started with 'odbc_autocommit($dbConn, FALSE);'
and I UPDATE a row in tablex, then later SELECT FROM tablex, will I see
the updated row or the original row? If it will help with suggestions, I
would prefer to see the updated row.
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by: D. |
last post by:
I have a question about the "readCommitted" transaction isolation level.
I have a client that is updating a record on a table.
I suspend the execution after the UPDATE but before the commit statement.
Than another client is trying to read the same record.
As transaction isolation is set to "readCommited" I expected that the second
client will read the old version of the record (before the update).
Instead, the second client hangs and...
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by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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