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by: Gary Lundquest |
last post by:
It appears to me that MySQL version 4 returns an error messge when doing an
Insert that results in duplicate entries. Version 3 did NOT return an
error - it dropped the duplicate entries and ran to completion. Version 4
seems to STOP when it encounters a duplicate entry, so that the records
before the duplicate are inserted and the records after the duplicate are
not inserted.
3.22.27.1 - previous ver MySQL that did not return error...
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by: Bob |
last post by:
Why, in the process of creating a unique index, does SQL Server allow
me to select the "Ignore duplicate keys" option? Wouldn't I just
create a non-unique index if I wanted to ignore duplicate keys? I
came across this fact while preparing for the SQL Server design exam.
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by: Curtis Stanford |
last post by:
I'm in a situation where I need to load an ASCII file into a database. No
sweat so far right? The records are indexed by date and I have a unique index
on date. The ASCII can overlap, meaning it can contain duplicate dates that
have been loaded before.
I started out with this ingenious idea. Just try to insert the record. If I
get an error about duplicate keys, do an update and switch to update mode. If
I'm updating and get zero rows...
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by: btober |
last post by:
I run the following script to export some data from my development
database and then update or insert the records into to the quality
assurance testing database, but I get a warning notice that I don't
understand. Aside from that notice, the script appears to work as
intended, i.e., updating existing report definitions and adding any new
ones defined in the dev environment but not appearing in QAT.
Here is the script:
\set...
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by: mivey4 |
last post by:
Okay I have 2 tables:
Table A - holds a list of new hardware serial numbers and their corresponding model (no constraints or indexes)
Table B - holds a distinct list of current serial numbers and the corresponding model numbers (primary key on serial_numbers)
Since Table A has no constraints duplicates may exist.
Additionally, table A is actually an Excel spreadsheet that is maintained by an employee that records new hardware as...
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by: kiran2nirvan |
last post by:
hi please help in solving this
i am recieving this error"Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression."
for the code
CREATE procedure .
(@frmMasterID int,
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by: debasisdas |
last post by:
Using Co-related sub query
========================
While a subquery is evaluated only once for each table, a correlated subquery is evaluated once for each row.
Sub query can take value from outer query.
Ex#1
---------
Delete duplicate record from table
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by: mnymoen |
last post by:
I have tried 2 variations of this query and cannot get it to work due to the fact I cant use "where email in". I get this error
"Only one expression can be specified in the select list when the subquery is not introduced with EXISTS".
I am trying to import records from the marketingmaster table that allows duplicate entries in the email column to the addresses table that has the email column as the primary key.
If I run the bottom half, I...
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by: AlexanderDeLarge |
last post by:
Hi!
I got a problem that's driving me crazy and I'm desperately in need of help.
I'll explain my scenario:
I'm doing a database driven site for a band, I got these tables for their discography section:
Discography
---------------------
DiscID
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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: 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: 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: 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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