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by: Gordon |
last post by:
I have 2 tables t and t1. In this case, t1 is a copy of t. I want to
delete rows from t1 based on criteria on the t table and a relationship
between t ad t1 (in this case the id column). In the results below, I
would think that the delete should have deleted row 1 {1 5 me) and not
row 3 (1 5 they) when I run this statement
delete t1 from t, t1 where t.id = t1.id and t.id=1 and t.name = 'me';
Any ideas on why row 2 is deleted?
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by: Vic |
last post by:
Hi all,
When I test the Delete multi table function in MySQL,
DELETE table_name ...]
FROM table-references
I accidentally delete all data in one table. All data in that table
are gone when I try to select them out in Control Center. But when I
go into the /mysql/data/mydatabase/, I see a MYD, MYI, frm for that
table. And it seems that data is still inside the MYD, althought it's
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by: Amy |
last post by:
This is what I want to do:
1. Delete all tables in database with table names that ends with a
number.
2. Leave all other tables in tact.
3. Table names are unknown.
4. Numbers attached to table names are unknown.
5. Unknown number of tables in database.
For example:
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by: ip4ram |
last post by:
I used to work with C and have a set of libraries which allocate
multi-dimensional arrays(2 and 3) with single malloc call.
data_type **myarray
= (data_type**)malloc(widht*height*sizeof(data_type)+ height*
sizeof(data_type*));
//allocate individual addresses for row pointers.
Now that I am moving to C++,am looking for something by which I can
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by: xah |
last post by:
i'm just starting out on javascript.
can anyone show me how to go about writing a code to sort a table
column?
something like the following:
<table border="1">
<tr>
<td>
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by: John Baker |
last post by:
Hi:
I have two systems, one a W98 and the other XP Home. I have Access 2000 installed on both,
and have run into a difference in the way the two behave.
I have a table on which I wish to reset an "auto number" field so the counter goes back to
zero. The procedure I have used is to copy the contents of the table to a temp table,
empty the table and then compress the files. After that I copy back the data to the table
without the...
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by: prosad |
last post by:
Hi!
Have been hitting my head on the wall for two weeks now. am a php newbie. have a form that on submitting to a MySQL DB instantly generates a HTML table on the same page. what i need now is way to be able to select rows from this table. specific selected row info sent back to text-box in my multi-button form for further processing depending on which button i click. have been trying to study javascript onclcik event handlers to see if this...
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by: Dean |
last post by:
My client has a db I am working that uses temp tables. During an
update procedure, I had the code If fTableExists(tempTblName) = True
Then DoCmd.DeleteObject acTable, tempTblName
Then I thought of using: If fTableExists(tempTblName) = True Then
CurrentDb.Execute "DROP TABLE " & tempTblName
Is there an advantage to either? What really be cool is DROP TABLE
deleted the table and I didn't have to compact the db so much.
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by: Adam Chapman |
last post by:
Hi,
Im trying to migrate from programming in Matlab over to C. Im trying
to make a simple function to multiply one matrix by the other. I've
realised that C can't determine the size of a 2d array, so im
inputting the dimensions of those myself.
The problem is that the output array (C=A*B) has as many rows as A and
as many columns as B. I would think of initialising C with:
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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, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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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 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,...
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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: 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...
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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: 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: 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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