473,657 Members | 2,450 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

Copying a row

Hi everyone,

Is there any easy way to duplicate a row in a table with auto increment
column, that shouldn't of course be copied. I tried a query "NSERT INTO
table SELECT * FROM table" but it caused an error due to the auto
increment column. I succeeded with listing all required fields in the
query, but it's not very efficient way to do it (in my opinion) as when I
modify the table (add or remove columns), I should modify also all
queries.

Any help is appreciated.

Thanks,
Ville

--
MySQL General Mailing List
For list archives: http://lists.mysql.com/mysql
To unsubscribe: http://lists.mysql.com/my***********...ie.nctu.edu.tw

Jul 19 '05 #1
1 6324
guest
25 New Member
What do you think about this?

Create a duplicate table with the same structure. Sample: tableAux. And...

1) TRUNCATE TABLE tableAux

2) INSERT INTO tableAux SELECT * FROM table WHERE id=...

3) UPDATE tableAux SET id =...
// Could be (SELECT MAX(id) FROM table) + 1 or similar.
// You could update other fields to of course.

4) INSERT INTO table SELECT * FROM tableAux

Maybe isn't simple but i think isn't so bad at all, because you don't need to be worry about new added fields to the original table.

And nice password guest ;)
Jun 28 '06 #2

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

5
9616
by: Thomas Lotze | last post by:
Hi, another question: What's the most efficient way of copying data between two file-like objects? f1.write(f2.read()) doesn't seem to me as efficient as it might be, as a string containing all the contents of f2 will be created and thrown away. In the case of two StringIO objects, this means there's a point when the contents is held in memory three times.
3
3641
by: Robert Tarantino | last post by:
Hello, I am trying to find a way to create a scheduled task or service that will copy my local profile folders under "Documents and settings" to a network drive. This would allow me to restore my settings if my profile became tampered with or corrupt. Is there any sample code available out there? -Robert
4
2973
by: Alex Vinokur | last post by:
Copying files : input to output =============================== C/C++ Performance Tests ======================= Using C/C++ Program Perfometer http://sourceforge.net/projects/cpp-perfometer http://alexvn.freeservers.com/s1/perfometer.html
13
17501
by: franky.backeljauw | last post by:
Hello, following my question on "std::copy versus pointer copy versus member copy", I had some doubts on the function memcpy, as was used by tom_usenet in his reply. - Is this a c++ standard library function? That is, can I be sure that every c++ standard library has this function? Or is there a c++ alternative to it?
22
6952
by: Matt | last post by:
When browsing a web page a user has the ability to highlight content on a page (by holding down the left mouse button and dragging the mouse over the desired content). Is there a way to disable this option? I assume there isn't but I have to try.
0
1542
by: Dan | last post by:
We debug a VB.Net App that uses compact framework to a DAP Windows CE.Net device. When I debug I would like to only have the EXE copied down. Right now it copies any referrences as well and checks the .NET CF version. The first message I receive is: Files in the package 'netcf.all.wce4.armv4.cab' are more recent on the device than on the development computer. Consider upgrading to the latest version. Files affected are:
0
1579
by: surya | last post by:
Hi, I need to enable shadow copying network share folder assemblies. Currently if the path is given as the network share folder path, shadow copying is not enabled. Should something special be done to enable shadow copying of files on network share folders? Thanks in advance, Regards Surya
1
8254
by: Mark Smith | last post by:
I'm trying to copy data from a 1D array to a 2D array. The obvious thing doesn't work: int twoDee = new int; int oneDee = new int { 1, 2 }; Array.Copy(oneDee, 2, twoDee, 2, 2); This causes a RankException. But the MSDN documentation says: When copying between multidimensional arrays, the array
1
1529
by: emilysmith10 | last post by:
I am creating a new database by copying a template .mdb file. This template has assigned permissions for each of it's objects. I know that just by copying the file, I lose these permissions. Is there any way to import them or set each of them through software?
1
2790
by: RonLandreth | last post by:
I am writing an accounting system for a class I'm taking at SLU. I need help figuring out the best way to go about copying a 2D array to a temporary 2D array, for eventually copying it back. Here's my flow of commands: 1. copy a single row of a 2D array 2. change that single row (either add a cell or delete a cell). 3. copy that single row back into the 2D array by the use of a temporary array. So I'm basically copying a single row...
0
8325
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,...
0
8844
Oralloy
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...
1
8518
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 Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
0
8621
tracyyun
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...
0
7354
agi2029
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...
1
6177
isladogs
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...
0
5643
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();...
2
1971
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.
2
1734
bsmnconsultancy
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...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.