by: hemal |
last post by:
I came across a very strange situation at work. There is an order of
magnitude difference in execution time for the following two queries
(10 v/s ~130 msec):
select count(*) from table_name...
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by: Andrew Banks |
last post by:
How efficient is ti to use join views in a database?
I'm developing an e-commerce system and using join views to join the
product, product category and product review tables and wondering if this...
|
by: jimstallings |
last post by:
Hi,
I am trying to locate documentation on using views across databases.
We have serveral databases broken down by application, some shared
databases and some location specific databases...
|
by: malcolm |
last post by:
This one's kind of hard to explain, so I've opted to post a simplified
version of our view that prompted me to ask this question: The
question is re-asked after the view...
create view MainView...
|
by: Mike |
last post by:
Hello,
I have a few rather urgent questions that I hope someone can help with (I
need to figure this out prior to a meeting tomorrow.) First, a bit of
background: The company I work for is...
|
by: Sebastian Böck |
last post by:
Hello all,
i have a view defined as a simple select of a table.
This table is inherited by a couple of others.
All entries belong to the child-tables.
I also have an unconditional update rule...
|
by: mooreit |
last post by:
The purpose for my questions is accessing these technologies from
applications. I develop both applications and databases. Working with
Microsoft C#.NET and Microsoft SQL Server 2000 Production and...
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by: news.bahnhofbredband.se |
last post by:
Some time ago I was working with DB2/400 - and one of the most appreciated
features was the concept logical files - a bit more than views in that they
maintained an access path. That is it...
|
by: rod.weir |
last post by:
Fellow database developers,
I would like to draw on your experience with views. I have a database
that includes many views. Sometimes, views contains other views, and
those views in turn may...
|
by: Peter |
last post by:
People are telling me it is bad to put
select * from <atable>
in a view. I better should list all fields of the table inside the
definition of the view.
I dont know exactly why but some...
|
by: taylorcarr |
last post by:
A Canon printer is a smart device known for being advanced, efficient, and reliable. It is designed for home, office, and hybrid workspace use and can also be used for a variety of purposes. However,...
|
by: Charles Arthur |
last post by:
How do i turn on java script on a villaon, callus and itel keypad mobile phone
|
by: aa123db |
last post by:
Variable and constants
Use var or let for variables and const fror constants.
Var foo ='bar';
Let foo ='bar';const baz ='bar';
Functions
function $name$ ($parameters$) {
}
...
|
by: ryjfgjl |
last post by:
If we have dozens or hundreds of excel to import into the database, if we use the excel import function provided by database editors such as navicat, it will be extremely tedious and time-consuming...
|
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: 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...
|
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: 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...
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