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...
|
by: Ghulam Farid |
last post by:
Hi
i have a table with primary key defined on col1 and col2. now i want to
have col3 also included in primary key. when i alter the table it gives
me error for duplicate rows. there is an option...
|
by: Mavis Tilden |
last post by:
Hi all,
So I've been reading the newsgroups, and reading a few books trying to learn
SQL and SQL Server 2000. The books tell me I need a Primary Key, and that
every table should have one. I know...
|
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...
|
by: serge |
last post by:
I ran into a table that is used a lot. Well less than
100,000 records. Maybe not a lot of records but i believe
this table is used often. The table has 26 fields, 9 indexes
but no Primary Key at...
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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...
|
by: misscrf |
last post by:
Ok I have 2 issues.
1) I have a main candidate form with 2 subforms on a tab control:
http://www.geocities.com/misscrf/images/contactcontinouscheckbox.jpg
I have been encouraged to add these...
|
by: Thomas A. Anderson |
last post by:
I am a bit confused in creating a composite primary key. I have three table
with two of the tables containing primary keys. I have two of the tables
(each with a primary key) having one to many...
|
by: Challenge |
last post by:
Hi,
I got error, SQL1768N Unable to start HADR. Reason code = "7", when I
tried to start hadr primary database. Here are the hadr configuration
of my primary db:
HADR database role ...
|
by: Peter |
last post by:
I am interested in informed feedback on the use of Constraints, Primary Keys
and Unique.
The following SQL statement creates a Bands tables for a database of
bookings Bands into Venues, where the...
|
by: emmanuelkatto |
last post by:
Hi All, I am Emmanuel katto from Uganda. I want to ask what challenges you've faced while migrating a website to cloud.
Please let me know.
Thanks!
Emmanuel
|
by: BarryA |
last post by:
What are the essential steps and strategies outlined in the Data Structures and Algorithms (DSA) roadmap for aspiring data scientists? How can individuals effectively utilize this roadmap to progress...
|
by: nemocccc |
last post by:
hello, everyone, I want to develop a software for my android phone for daily needs, any suggestions?
|
by: Hystou |
last post by:
There are some requirements for setting up RAID:
1. The motherboard and BIOS support RAID configuration.
2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...
|
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,...
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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...
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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...
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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...
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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,...
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