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by: Andrew Baker |
last post by:
What is the best way to lock an individual row in the following
scenerio:
--TODO - LOCK THIS ROW
-- Return the next id
SELECT next_id
INTO next_id_out
FROM owner.my_id_table
WHERE app_id = app_id_in;
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by: Trent |
last post by:
Hello, all.
I have the following production DB2 environment.
DB2 8.1.4 (fp4) WG edition with 2 production databases on Windows 2003
standard edition.
My first question is regard with locking. I found some escalations for
X lock on some tables. How do I work out an appropriate MAXLOCK &
LOCKTIMEOUT settings to optimize the lock escalation issue.
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by: Kissi Asiedu |
last post by:
I have access 97 database being run by multiple users. It was working fine
until I created a form and a macro to open the form at start-up. Now only
one user can open the table. If a second user attempt to open the same table
at the same time, there is an error message that says "table cannot be lock,
it is being used by user A on machine C or you may not have permmision to
open table". Does anyone have an idea how to solve this problem? I...
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by: Ed L. |
last post by:
I think I'm seeing table-level lock contention in the following function
when I have many different concurrent callers, each with mutually distinct
values for $1. Is there a way to reimplement this function using
select-for-update (or equivalent) in order to get a row-level lock (and
thus less contention) while maintaining the function interface? The docs
seem to suggest so, but it's not clear how to return the SETOF queued_item
and also...
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by: MP |
last post by:
Greets,
context: vb6/ado/.mdb/jet 4.0 (no access)/sql
beginning learner, first database, planning stages
(I think the underlying question here is whether to normalize or not to
normalize this one data field - but i'm not sure)
:-)
Background info:
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by: adri4n |
last post by:
as wat ive mentioned in the title.. im would like to know whether the a
particular record/table is being locked in my program. some of the
methods which i would like to develop are as below:
Lock(KEY, SQLCODE)
- to create a lock. Returns 0 on success, 1 if a lock already exists
and -1 on failure with SQLCODE. There is no necessity to use IsLock()
for checking if a lock exists or not, just insert the record and check
for
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by: TS |
last post by:
Say i have a class car with properties: Color, Make, Model, Year, DriverID
And a Driver class with properties: DriverID, Name
The driverID PRIVATE property is the id of the driver from say a driver
table (t_driver). This has a PUBLIC property accessor called Driver
My understanding of OO using the composition model is that when you want to
load up a car class, you would access the DB to get Color, make, Model,
Year, DriverID and load...
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by: Samuel R. Neff |
last post by:
When is it appropriate to use "volatile" keyword? The docs simply
state:
"
The volatile modifier is usually used for a field that is accessed by
multiple threads without using the lock Statement (C# Reference)
statement to serialize access.
"
But when is it better to use "volatile" instead of "lock" ?
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by: Mark |
last post by:
Currently using MS Access 2000 and SQL Server Express. Using the
current DAO OpenRecordset code listed below, however I keep getting
the error message....
3254: ODBC --Cannot lock all records
The code below runs in a MS Access frontend while the table is linked
using an ODBC connected to an SQL Server (backend). The table
(located in SQL) only has one row and one column within it . I want
to try and stop any other request (other...
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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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: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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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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