473,696 Members | 1,873 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

How to delete records of one table that exist in another table have no keys?

16 New Member
I want to delete records of one table that exist in another table. The tables have no primary key. It will take a lot of time compare field by field. Is there any method record by record comparison and deletion
Feb 3 '11 #1
2 2538
152 New Member
Do you have the authority to add the keys ? If so,add them

If not, post the table structures and the rule for deletion
Feb 3 '11 #2
2,878 Recognized Expert Specialist
How do you know it exists on the other table then? To say it also exists in the other table means there's similarities between the two records in different table. Use those similarities as your link to delete the records.

Good Luck!!!

~~ CK
Feb 3 '11 #3

Sign in to post your reply or Sign up for a free account.

Similar topics

by: Deja User | last post by:
This is probably very simple but I can't figure out a way to update one table from another table. Here is an example: ------ TABLEA ------ first_name last_name
by: Mike9900 | last post by:
What is the best way to copy DataRow from one table to another table, without copying its structure, which means copying only its data. -- Mike
by: thengfen | last post by:
Hi! Im having a problem in transfering a set of records from a table to another table. The scenario is when i select combo box (Course taken such as diploma in IT), then the process will automatically save the list of subjects that need to be taken by students into student course info table.. i hv link all the related table together... I had tried a few solution but still cant... Hope somebody can help.... Thanks a lot! :)
by: lcourchesne | last post by:
Hi there, This is what I am trying to do: Create a query that will insert a column from Table 2 into Table 1. These two tables are exactly the same in structure, however, there is no unique identifier in either table. For example, Table 1 has fields called Broker Number, Category, and Total Amount, and Table 2 also has fields called Broker Number, Category, and Total Amount. Broker Number and Category are identical in both tables,...
by: Sakakini | last post by:
How can I append last entry from one table to another table???
by: sathish309 | last post by:
I need ways to add records automatically to a table from the linked table of outlook.
by: xoozlez | last post by:
Hi there, How do I insert new records from a dbo table to another table? This is what I have: 1 dbo_company 1 Member (table) I made a query in dbo_company with the criteria I only want to retrieve out new records from "ceo_email" and "contact_email" column after e.g 25.July.07
by: anil2083 | last post by:
How to migrate the comma separated values from one table to another table? suppose we have table i.e XYZ and we have comma separated values in few columns i.e( column_name and values are A,B,C,D).Now i have to migrate these comma separated values into new table i.e PQR. Example: Table1 column_name1 complexion values : VF,F,AVG etc.. column_name2 profession values : TEA,LECT etc...
by: rammudali | last post by:
Hi all, i have a db where i maintain document controlling. In the main form i am updating all the relevant fields(by qry- two tables i to many). for certain reason after updating a particual combobox i want to add 5 fields from this qry to a n another table. for Eg: 5 fiels of total 45 fiels from two tabels namely docno text 25, ircno text 25, rev text 10, client text 255, comments text 255 to another tblsummary afterupdating field...
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...
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...
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,...
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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...
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...
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();...
by: adsilva | last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.