by: Joy |
last post by:
MySQL automatically creates an index for the primary key. Now, I want to
drop it before I start inserting a million rows of data. Can I drop it at
all? Thanks.
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by: Woody Rao |
last post by:
I'm trying to drop all indexes and primary keys so that i can rebuild them
(from a script created from same database on another server).
when i go to the 'generate sql scripts', it has the...
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by: Ilan Sebba |
last post by:
I am trying to add a record using SQL. My problem is that the primary keys
are foreign keys, and these foreign keys are autonumbers. I therefore do
not know the primary keys of the record I am...
|
by: Geoff Cayzer |
last post by:
At http://www.blueclaw-db.com/tips_tricks.htm I came across a section
which is included below and was hoping for some comment on the
article.
--------------
Almost never use this auto-number...
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by: Philip |
last post by:
Hey all,
(Access 2000)
I've been having a horror story with this design problem. My Database is
Structured like This: AUTHORS, BOOKS, PAGES. Those are the Tables and each
Item in each table...
|
by: Thomas A. Anderson |
last post by:
I am a bit confused in creating a composite primary key. I have three table
with two of the tables containing primary keys. I have two of the tables
(each with a primary key) having one to many...
|
by: LurfysMa |
last post by:
Most of the reference books recommend autonum primary keys, but the
Access help says that any unique keys will work.
What are the tradeoffs?
I have several tables that have unique fields. Can...
|
by: Danny |
last post by:
Hello,
We imported a bunch of tables from a database and realized that the
primary keys weren't copied to the destination db. In order to re-
create the keys, we need to know which tables have...
|
by: DanicaDear |
last post by:
I have a QTY field and an ITEM field. User inputs a number into the QTY field, then tabs over the the next field and there's a down arrow on the right hand side of the field that you click to choose...
|
by: ryjfgjl |
last post by:
In our work, we often receive Excel tables with data in the same format. If we want to analyze these data, it can be difficult to analyze them because the data is spread across multiple Excel files...
|
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: 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:
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...
|
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: 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...
|
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...
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