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by: Brian Patterson |
last post by:
I have noticed in the book of words that hasattr works by calling getattr
and raising an exception if no such attribute exists. If I need the value
in any case, am I better off using getattr within a try statement myself, or
is there some clever implementation enhancement which makes this a bad idea?
i.e. should I prefer:
if hasattr(self,"datum"):
datum=getattr("datum")
else:
datum=None
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by: sandy |
last post by:
Hi All,
I am a newbie to MySQL and Python. At the first place, I would like to
know what are the general performance issues (if any) of using MySQL
with Python.
By performance, I wanted to know how will the speed be, what is the
memory overhead involved, etc during database specific operations
(retrieval, update, insert, etc) when MySQL is used with Python.
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by: Unruled Boy |
last post by:
1.The follow two ways to declare one object: any difference? especially its
performance.
a.Private m_objMyObject As MyObject=New MyObject()
b.Private m_objMyObject As MyObject
m_objMyObject=New MyObject
2.Any difference between a and b?
a.
For Each childItem In SomeItems
Dim objData As DataObject=m_objOneSource.GetData(childItem.ID)
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by: robert |
last post by:
been ruminating on the question (mostly in a 390/v7 context) of
whether, and if so when, a row update becomes an insert/delete.
i assume that there is a threshold on the number of columns of
the table, or perhaps bytes, being updated where the engine just
decides, screw it, i'll just make a new one.
surfed this group and google, but couldn't find anything.
the context: we have some java folk who like to parametize/
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by: Mark Shelor |
last post by:
I've encountered a troublesome inconsistency in the C-language Perl
extension I've written for CPAN (Digest::SHA). The problem involves the
use of a static array within a performance-critical transform function.
When compiling under gcc on my big-endian PowerPC (Mac OS X),
declaring this array as "static" DECREASES the transform throughput by
around 5%. However, declaring it as "static" on gcc/Linux/Intel
INCREASES the throughput by...
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by: bernhard.willems |
last post by:
We are using DB2 UDB version 8.1 fp7 & fp9 on AIX 5.2.
On our databases we do massive inserts and deletes (millions of rows).
The performance is dramatically reduced because of pseudo deleted keys.
In a 10 minutes it goes from 18000 transaction per minute to 9000 and
lower.
When an index reorg with CLEANUP ONLY PAGES is executed, the number of
transactions climbs again. But a few minutes later it drops again to
9000.
We have to run the...
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by: Michel Esber |
last post by:
Linux RH 4.0 running DB2 V8 FP 11.
I have a table with ~ 11M rows and running DELETE statements is really
slow. Deleting 1k rows takes more than 3 minutes. If I run select
statements on the same table, I usually fetch rows in a reasonable
time.
The table has the following description:
MACHINE_ID VARCHAR (24)
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by: Michel Esber |
last post by:
Hello,
Environment: DB2 LUW v8 FP15 / Linux
I have a table with 50+ Million rows. The table structure is basically
(ID - Timestamp). I have two main applications - one inserting rows,
and the other reading/deleting rows.
The 'deleter' application runs a MIN/MAX (timestamp) for each ID and,
if the difference between min/max is greater than 1h, it reads all
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by: Ratko |
last post by:
Say you have something like this:
for item in myList:
del item
Would this actually delete the item from the list or just decrement
the reference counter because the item in myList is not associated
with name "item" anymore (but still is with myList)? In
other words, is "item" a temporary reference to myList or
is it actually that reference that myList has stored?
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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: 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: 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: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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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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