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by: Andrew DeFaria |
last post by:
I created the following .sql file to demonstrate a problem I'm having.
According to the manual:
If |ON DELETE CASCADE| is specified, and a row in the parent table
is deleted, then InnoDB automatically deletes also all those rows in
the child table whose foreign key values are equal to the referenced
key value in the parent row.
However:
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by: Squid Seven |
last post by:
I create a pointer to an item:
CardSession *cardSession;
Then, later, I use new to create an instance of the item and assign it
to that pointer:
cardSession = new CardSession();
In another function, I want to test if an object is assigned to that
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by: ravinderthakur |
last post by:
hi experts,
i have few questions regarding the delete operator in c++.
why does c++ have to operators for deleting memeory viz delete and
delete.
why cannnot delete be used insted of delete.
how does the delete operator knows the number of object for which
destructor has
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by: someone |
last post by:
Hey All:
I have two pointers A & B pointing towards data objects C & D resp. Now
I want to achieve the following:
1. Free up memory that A points to
2. Have A point towards D
3. Have B point to nothing.
How could this be implemented efficiently?
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by: polocar |
last post by:
Hi,
I'm writing a program in Visual C# 2005 Professional Edition.
This program connects to a SQL Server 2005 database called
"Generations" (in which there is only one table, called
"Generations"), and it allows the user to add, edit and delete the
various records of the table.
"Generations" table has the following fields:
"IDPerson",...
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by: ITAutobot25 |
last post by:
My delete button is not working in my GUI and my due date is today before midnight. Can anyone show me how to correct this error? My assignment statement is below as well as 5 classes. InventoryGUI is the main class to begin execution.
Thanks!
• Modify the Inventory Program to include an Add button, a Delete button, and a Modify button on the...
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by: codedhacker |
last post by:
I have a piece of code that uses the db-library with sql server 2000/2005 and runs the following delete statement:
DELETE FROM TABLE1 WHERE COL1 IN( 'Some Val1' ) AND COL2 IN( 'Some Val2' ) AND Col3 IN( integer1 ) AND Col4 IN( integer2 ) AND Col5 IN( 'Some Val3' )
on TABLE1, uploads data into TABLE1 through bulk loading, calls a...
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by: holdingbe |
last post by:
Hi ,
I am deleting the large amount of data in table using the delete statements .After that I have checked tablespace, there is no change in tablespace memory. But when using truncate statements,I do see change in tablespaces.
My steps are below
1)CREATE TABLE CSA_BANK_RESPONSE
(
BANK_KEY NUMBER(9) NOT NULL,
BANK_ID VARCHAR2(30 BYTE) NOT...
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by: Rahul |
last post by:
Please read the following code
class Test{
public:
void * operator new (size_t t)
{ return malloc(t); }
void operator delete (void *p)
{ free(p); }
};
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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...
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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. ...
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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...
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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...
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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...
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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...
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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...
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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: 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...
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