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by: Programmer |
last post by:
Hi All
Here is my problem
I'm using a SQLDataAdapter and DataSet
I use the method FillSchema(myDataset, SchemaType.Source)
The problem is that when i Check the default Values of the Dataset
i can see that the DefaultValue of the columns is system.dbnull!!!!
But in SQL Server i have put as default values in a bigint field the '0' and
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by: serge |
last post by:
I am doing a little research on Google about this topic and I ran into
this thread:
http://groups.google.com/group/microsoft.public.sqlserver.programming/browse_thread/thread/63cce060ff152dcc/1dc13d4ee6758966?lnk=st&q=difference+constraint+sql+defaults&rnum=14#1dc13d4ee6758966
I read SQL Server MVP Louis Davidson's post saying:
"Actually they are more likely to drop the concept of bound defaults.
Constraints are the standard way to do...
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by: serge |
last post by:
How can i enter Default Values of " " to all the columns of type character
of all the tables (excluding system tables) and Default Values of 0
of all columns of type numbers. Excluding all primary key columns.
Thank you
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by: |
last post by:
i have three columns
hrs_due, hrstaken, and totalhrsneeded
i need the default value of hrs_due to = totalhrsneeded - hrstaken
the data type of all is number>long integer, and i try to key =- into the default value of hrs_due but it
will not accept it can anyone plz help??
thanks
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by: Brian Brane |
last post by:
I have properties that wrap DataRow columns as in:
public int aNumber
{ get{ return m_DataRow; }
set{ m_DataRow = value; } }
If the column happens to contain DBNull, I get a cast
exception since DBNull cannot be converted to int. I
wrote the following method that looks up the column's
data type and if it is a ValueType, returns the default
value for the ValueType.
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by: tg.foobar |
last post by:
my setup:
visual studio 2005
sql server 2000
i'm using a dataset (used to be called typed dataset in 2003), where i
use the MSDataSetGenerator to create a class for me based on the scheme
of my SQL server. This schema doesn't include the default values that
are defined in the SQL server. It's setting all the default values to
NULL. is thre an easy way to get around this? for example, i have a
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by: binder |
last post by:
I am designing a new table with a few columns that may or may not have
a value on each row that is inserted.
What issues determine whether to allow a NULL value to be inserted for
that column or define a default value to be used?
I want to think through the repercussions of this decision before I get
into production.
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by: Drew |
last post by:
Hello all,
Does anybody know if it is possible to set the default value of a
field to equal the concatenation of 2 other fields?
I.E.
Field 1 = 123
Field 2 = 345
Field 3 = (Field1 + Field2) = 123345
This is easy enough to do using a stored procedure, but I'm trying to
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by: piercy |
last post by:
Hi, Im tyring to display a dataGridView with comboBoxes on about 5 of the fields. This table is basically permissions to certain parts of my program. In the database i just store a 1 or a 0 (access or no access). Now obviously to the user i want this to be displayed as text. Now currently i am creating the columns manually and using the cell changed event to do the updating. This is quite long winded and if possible i would like a simpler...
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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 usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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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 effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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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.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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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 most users, this new feature is actually very convenient. If you want to control the update process,...
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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 into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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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: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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