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by: vishal |
last post by:
i have one form on which the data is stored in database and suppose the
user clicks the back button of browser and again click on submit button
then the data will be saved in database again.
so how can i solve this problem????
thxs for help in advance
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by: js |
last post by:
I am trying to create a primary key constraint on a view in the
following statement. However, I got an error ORA-00907: missing right
parenthesis. If the CONSTRAINT clause is removed, then the view is
created fine. Does anyone know how to creat Primary Key Constraint
for a View? Thanks.
CREATE OR REPLACE VIEW RPT_VW_WMN (
CARD, EC_D_CODE, EC_M_CODE,
START_DATE, PR_NAME, PR_ID, ELIG, ANNUALY, MONTHLY, PENDING,
/* ORA-00907: missing...
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by: christopher.secord |
last post by:
Is there any advantage to doing this:
ALTER TABLE testtable ADD
CONSTRAINT PK_sysUser
PRIMARY KEY NONCLUSTERED (UserID)
WITH FILLFACTOR = 100,
CONSTRAINT IX_sysUser
UNIQUE NONCLUSTERED (UserID)
WITH FILLFACTOR = 100
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by: Christopher Harrison |
last post by:
Is there a way to store an indefinite number of keys in one field and
self join them? Imagine, for example, you have a table of users with a
"friends" column. Say user 1 is friends with users 9, 7, 24 and 6; then
would it be possible to store this
array/list/whatever-you-want-to-call-it into user 1's friends cell and
extract the join in a query, some how? An easy and obvious way, that
is; I can think of string processing hacks ;)
Thanks...
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by: David Garamond |
last post by:
SQL Server only allow one NULL in a unique constraint column (it's the
unique index that does that, so the unique constraint behaves like that
too). The question is, what is the best way to simulate that behaviour
in Postgres? Can a CHECK constraint does that? Will a trigger with
SELECT count(*) ... WHERE f IS NULL be too slow if the table is large?
--
dave
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by: BRINER Cedric |
last post by:
Synopsis
CREATE { TEMPORARY | TEMP } ] TABLE /table_name/ (
{ /column_name/ /data_type/ ]
| /table_constraint/ }
)
) ]
...
...
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by: BostonNole |
last post by:
Is there a way to create an index (non-unique) constraint on a
DataTable column?
Here is some code sample I would like to run, but the constraint can
not be unique.
Dim IDDataColumn As DataColumn
IDDataColumn = ds.Tables(1).Columns("MyNonUniqueID")
ds.Tables(1).Constraints.Add("IndexID", IDDataColumn, False)
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by: askohen |
last post by:
I have this CREATE TABLE statement:
CREATE TABLE howto (
id INT IDENTITY(1,1) PRIMARY KEY,
title VARCHAR(100) UNIQUE NOT NULL,
url VARCHAR(20) UNIQUE NOT NULL,
order_on_homepage SMALLINT UNIQUE, --just put an order on this and if it's not null, then its on the homepage
CONSTRAINT CK_HOWTO_URL CHECK(url != ''),
CONSTRAINT CK_HOWTO_TITLE CHECK(title != '')
);
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by: Alvin SIU |
last post by:
Hi all,
I have a table in Db2 v8 like this:
Team Name Role
------ -------- ---------------------
A Superman Leader
A Batman Member
A WonderWoman Member
B Alvin Leader
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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: 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: 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, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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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: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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