by: Lannsjo |
last post by:
I need to change my primary key column type from smallint to int.
I have tried:
ALTER TABLE livegroup MODIFY id INT UNSIGNED NOT NULL AUTO_INCREMENT;
But get an error message certainly since my...
|
by: suma |
last post by:
Hello,
I want to delete duplicate rows in a table when no primary key is
defined.
For eg: If we have table1 with data as below,
Suma 23 100
Suma 23 100
I want to delete a row from this...
|
by: sfh |
last post by:
Greetings all,
I have a question concerning primary key types.
In the past, I have always created tables with a primary key as an "int" such as:
CREATE TABLE color_id (
color_id int(10)...
|
by: sfh |
last post by:
Greetings all,
(I had posted this in MS SQL on accident, my apologies :( )
I have a question concerning primary key types.
In the past, I have always created tables with a primary key as...
|
by: Andreas |
last post by:
Hello list,
what about uniqueness of inherited primary keys ?
eg you have :
create table objects (
id int4,
date_created timestamp(0),
primary key (id)
|
by: Larry Rekow |
last post by:
Have been using macros to do automatic importing of flat text files
lately....wish I knew about his capability before :)
question: is there any way to specify one of the fields I import as
being...
|
by: travlintom |
last post by:
Hi all.
I have a datagrid that has several columns including the Primary Key as
the first column.
When I add records to the grid the Primary Key column show "Null". This
would not be a...
|
by: Ivan |
last post by:
Hi to all !!!
I have one stored procedure that update and delete rows in differents
tables, but when I try of delete of the main table this show problems
with primary and foreign key. I DROP...
|
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: =?Utf-8?B?S2F5xLFoYW4=?= |
last post by:
In my project,i added datagridview to my form , i transfered my table to
datagridview and added multiple rows and when i called dataadapther.update
,,result is ok. But when i tried it for 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: Sonnysonu |
last post by:
This is the data of csv file
1 2 3
1 2 3
1 2 3
1 2 3
2 3
2 3
3
the lengths should be different i have to store the data by column-wise with in the specific length.
suppose the i have to...
|
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,...
|
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows...
|
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...
|
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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