by: Agoston Bejo |
last post by:
I want to enforce such a constraint on a column that would ensure that the
values be all unique, but this wouldn't apply to NULL values. (I.e. there
may be more than one NULL value in the column.)...
|
by: Simon Jackson |
last post by:
I am trying to convert a column to a unique column. Tried to look at some
examples on-line but failed to find the correct syntax I need. So, while I'm
waiting for my SQL book to arrive, a pointer...
|
by: wiredog |
last post by:
I am struggling rewriting my query from MS Access' IIF, Then to SQL
Servers TSQL language. I am hoping some one can give me some
guidance. I believe I have the first portion of the query correct...
|
by: aj |
last post by:
DB2 WSE 8.1 FP5
Red Hat AS 2.1
What is the difference between adding a unique constraint like:
ALTER TABLE <SCHEMA>.<TABLE> ADD CONSTRAINT CC1131378283225 UNIQUE (
<COL1>) ;
and adding a...
|
by: Bill Nguyen |
last post by:
I found that rows in datagrid can be sorted by clicking on the column
header. However, this doesn't refresh the .currentindex
DataGrid1.CurrentCell.RowNumber
I need either to disable colum...
|
by: kchatel |
last post by:
Is it possible in Access to do the following.
I filtered my table to have the folowing values
ProdID Color
------------------------
2 Black
2 Red
2 Green
Now is...
|
by: mail |
last post by:
Urgent help needed!
I moved an application from ASP+ACCESS to ASP+MS SQLSERVER and I have
the following problem:
If the join on two tables results on duplicate colum names (which
appear in...
|
by: BenG |
last post by:
Hi. I have a gridview control on a web form (asp.net 2.0) that's bound to a
objectDataSource. The objectdatasource which is bound to a class I've
written in the DAL to read and update the database....
|
by: sqlservernewbie |
last post by:
Hi Everyone,
Here is a theoretical, and definition question for you.
In databases, we have:
Relation
a table with columns and rows
|
by: Manikandan |
last post by:
Hi,
I have table with three columns as below
table name:exp
No(int) name(char) refno(int)
I have data as below
No name refno
1 a
2 b
3 c
|
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: 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:
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: nemocccc |
last post by:
hello, everyone, I want to develop a software for my android phone for daily needs, any suggestions?
|
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: 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,...
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