by: geoff |
last post by:
The table creation script(at the end of this post) works fine on
4.0.1-alpha-win, but the foreign key constraints fail on 4.0.15-win. I
am starting the server with the same command for both...
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by: Bodza Bodza |
last post by:
I'm having an argument with an incumbent self-taught programmer that
it is OK to use null foreign keys in database design.
My take is the whole point of a foreign key is that it's not supposed...
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by: adammitchell |
last post by:
How can you indicate that a FOREIGN KEY constraint references two
columns in two different tables?
"SQL Server Books Online" show an example of how to reference two
columns in the SAME table:...
|
by: teddysnips |
last post by:
This is a rather abstract question about data design, but I ask it here
because a) the database is SQL Server, and b) you're such a learned
bunch!
Let's assume the classic relation of Customers...
|
by: heroe |
last post by:
Hello *,
i write you with an urgent problem. I would like to create forign keys
to datetime field, but it doesn't seem to work. I get Can't create table
'.\sampleDB\student_module.frm' (errno:...
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by: skennd |
last post by:
Here's my problem in exact replication:
I have used the find duplicate query in Access, and the query
determined the following duplicate values by the following query:
In (SELECT FROM As...
|
by: Indra Bisen |
last post by:
Hi,
I want to determine column names of Primary Key Columns of a SQL Server
Table. To do this I've found following example in MSDN under PrimaryKey
property of DataTable. I've add some lines of...
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by: mathewgk80 |
last post by:
Hi all,.
I have a table Student and the primarykey is studid..
This studid is the foreign key in another table called Class.
I want to delete the records in the table Class...
How can i...
|
by: jarea |
last post by:
I have read quite a bit about this error but I have yet to find the solution to my problem.
I am trying to execute the following mysql statement:
alter table line_items
add...
|
by: Charles Arthur |
last post by:
How do i turn on java script on a villaon, callus and itel keypad mobile phone
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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...
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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...
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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: 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,...
|
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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