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by: Jonathan |
last post by:
I am looking for a simple way to check if a database table exists. I
keep getting advice to use "Try.. Catch" and other error handling
methods, but I obviously don't want to have to display an error
message and stop the process every time someone loads the script after
the table is created because that would mean the page could only ever
run once which of course not the solution I was looking for. I simply
want to know how I can check...
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by: DottingTheNet |
last post by:
i promise no more silly questions after this
but how do i check if a table exists??
it is my understanding that the exists can only be used in the where
clause of the query.
i just want s'thing simple like
if exists ('test')
then ---good
else
--create it
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by: adam |
last post by:
hello
What query shoul I send to SQL serwer ( in transact SQL language ) to check
does some database exist on serwer ? It similar to problem "does some table
exist in database" - resolve to it is query:
use db_silnik
IF EXISTS (SELECT * FROM prad)
PRINT 'table exist'
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by: Chris Windsor |
last post by:
I hope the following describe what I'm trying to do:
I have created a tool to be used by product analysts when studying different
cell phone designs. Part of the tool is a set of 11 forms on a tab
structure with fields for various features a phone might have; there are
almost 100 of these features to choose from. Rather than a simple check
box, I used a combo box with the a value list of "Y, N, N/A, and ?"; I even
simplified entry by...
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by: Geoff Jones |
last post by:
Hi
I'm trying to drop a table by using:
Dim cmd As New OleDbCommand("DROP TABLE IF EXISTS books", myconnection)
cmd.ExecuteNonQuery()
but I get a syntax error: "Syntax error in DROP TABLE or DROP INDEX"
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by: RLN |
last post by:
Re: Access 2003
I have code to check to see if a table exists.
There are several other tables (tblQ12, tblQ13, etc) that do already
exist & this code runs fine; msgbox says the value returned is true
when the table already exists prior to the run of this module.
If the table does not exist, this line bombs
varTemp = dbsTemp.TableDefs(prmTable).Name
with this error:
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by: Brian Tkatch |
last post by:
Is there a way to check the order in which SET INTEGRITY needs to be
applied? This would be for a script with a dynamic list of TABLEs.
B.
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by: bharathreddy |
last post by:
This article will explain you how to check weather a column already exists in a table before you add the column to the table using alter command.
Using the system tables you can check to see weather a column already belongs to a specific table. SYSCOLUMNS is the system table which stores all the table columns information, from this column you can check weather a specific column exists in a specific table.
...
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by: qwedster |
last post by:
Howdy folks!
I am using stored procedure to see if a value exists in database table and return 0 if exists or else -1, in the following SQL queries.
However how to check if a value (that is null) exists in database table and return 0 if exists or else -1 using stored procedure? Please help.
USE
GO
IF EXISTS (SELECT name FROM sys.databases WHERE name = 'ExampleDatabase')
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by: qwedster |
last post by:
Folk!
How to programattically check if null value exists in database table (using stored procedure)?
I know it's possble in the Query Analyzer (see last SQL query batch statements)?
But how can I pass null value as parameter to the database stored procedure programattically using C#?
Although I can check for empty column (the following code passes string.Empty as parameter but how to pass null value?), I cannot check for null value...
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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: 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: 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 tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
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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: 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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