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by: John Simmons |
last post by:
How is it that even though I have the column "username" in my database set
as a Primary key, using my PHP script to add new users to the database works
without any errors even when signing up using an existing username. I have a
database full of the same usernames!
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by: Westcoast Sheri |
last post by:
Which will be a faster lookup of an item by, "color" in the following
mySQL tables: "unique key," "primary key," or just plain "key"??
CREATE TABLE myTable (
number int(11) NOT NULL default '0',
description varchar(50) NOT NULL default '',
color varchar(30) NOT NULL default '',
price decimal(3,2) NOT NULL default '0.00',
UNIQUE KEY (color)
);
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by: 101 |
last post by:
Taking a course on SQL. They are saying you can get better performance by
having multiple files for a group.
They then graphically show an example of "Primary" with multiple data files.
I have tried altering PRIMARY to have multiple data files and I get and
error. I have tried creating a new database with multiple PRIMARY files and
get an error.
I can ALTER and CREATE secondary files with multiple data files with no
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by: shenanwei |
last post by:
I have a primary server and backup server located in different physical
sites.
The primary server is live and ship logs to backup site every 5
minutes.
The primary server is being full online backed up every sunday locally.
Those logs are being applied to backup server every five minutes.
For example,
Primary site has power outage on tuesday, the last log was shipped was
S0001000.LOG. Backup server was brought to live, the first active...
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by: baibaichen |
last post by:
i know that pImpl idiom can decrease compile time, but Is there any
good practice/idiom to decrease link time?
any reference or any idea is appreciated
thanks
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by: Jesper, Denmark |
last post by:
Hi,
I've written a somewhat large program over the years (70.000 lines of code).
When compiling the program I get a 2MB exe file. When running this program I
get an corresponding image in the task manager showing a 40 MB memory
allocation . Yes, the program allocates memory dynamicaly, but no where near
this amout of memory. Of cause I expect some .net stuff is probably also
contained in this allocation. However, if reinstantiating the...
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by: paul |
last post by:
Hi,
I have two databases in hadr, this morning i issued a "takeover ... by
force" because the normal takeover didn't worked. Now i have two standard
databases, and if i try to put the old primary database in standby mode i
can't but it's not in rollforward pending state.
How can i put this database in rollffoward pending state without
backup/restore from the new primary dabatase ?
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by: ll |
last post by:
Currently, I'm exporting a database from production to local (test)
machine. I've done this several times without problem, but during the
last few days, the primary keys have failed to export. Would anyone
know what options might keep the keys from exporting?
Thanks,
Louis
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by: =?Utf-8?B?bGlnaHRkb2xs?= |
last post by:
Hello everyone.
i want to know how to decrease the cpu usage in my program.
i have to update quickly many data on gui,
so i tried to decrease the cpu usage on gui but i couldn't solve the problem.
i found the code with probloem why the cpu usage increased by debug..
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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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: 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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