473,372 Members | 1,299 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,372 software developers and data experts.

How to update one sql table from another table

Hi all,

I have 2 tables table1 and table2 both is having same fields name,class,result,email. I will take email as the relational field, now i need to update the date of table1 from table2 condition is i need to check all the field of table1 (name,class,result) if any of the field is NULL then i need to update from table2 otherwise no update.

Can anyone please help me............

Aug 4 '09 #1
3 4036
2,878 Expert 2GB
What do yo have so far?

--- CK
Aug 4 '09 #2
Only 2 tables and a form in c.net. In form i displayed 2 checkbox in front of everyfield one checkbox is "always" and other is "only if NULL" if user select always then it will replace the value of this particular field with othe table value and if user select only if null then the system will check if the value for that particular field is null then it will take the value from second table otherwise it will keep the same value. I have 25 fields in my table and every field is having its own 2 check boxes..
Aug 4 '09 #3
2,878 Expert 2GB
I mean on the SQL Server side. What code do you have on your UPDATE part.

--- CK
Aug 4 '09 #4

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

Similar topics

by: shottarum | last post by:
I currently have 2 tables as follows: CREATE TABLE . ( mhan8 int, mhac02 varchar(5), mhmot varchar(5), mhupmj int )
by: jimserac | last post by:
I had previously posted this in an Access forum with negative results so will try here. Although this question specifies an Access database, I also wish to accomplish this with a large MS SQL...
by: robert | last post by:
been ruminating on the question (mostly in a 390/v7 context) of whether, and if so when, a row update becomes an insert/delete. i assume that there is a threshold on the number of columns of the...
by: Bill Smith | last post by:
The initial row is inserted with the colPartNum column containing a valid LIKE pattern, such as (without the single quotes) 'AB%DE'. I want to update the column value with the results of a query...
by: rrh | last post by:
I am trying to update a field in one table with data from another table. The problem I'm running into is I need to base the update on a range of data in the 2nd table. Table 1 has: date field...
by: Maxi | last post by:
There is a lotto system which picks 21 numbers every day out of 80 numbers. I have a table (name:Lotto) with 22 fields (name:Date,P1,P2....P21) Here is the structure and sample data: ...
by: FayeC | last post by:
I really need help figuring this out. i have a db with mostly text fields but 2. The user_id field is an autonumber (key) and the user_newsletter is a number (1 and 0) field meaning 1 yes the ...
by: Miro | last post by:
I will ask the question first then fumble thru trying to explain myself so i dont waste too much of your time. Question / Statement - Every mdb table needs a PrimaryKey ( or maybe an index - i...
by: shookim | last post by:
I don't care how one suggests I do it, but I've been searching for days on how to implement this concept. I'm trying to use some kind of grid control (doesn't have to be a grid control, whatever...
by: ARC | last post by:
Hello all, So I'm knee deep in this import utility program, and am coming up with all sorts of "gotcha's!". 1st off. On a "Find Duplicates Query", does anyone have a good solution for...
by: CloudSolutions | last post by:
Introduction: For many beginners and individual users, requiring a credit card and email registration may pose a barrier when starting to use cloud servers. However, some cloud server providers now...
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 3 Apr 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 former...
by: ryjfgjl | last post by:
In our work, we often need to import Excel data into databases (such as MySQL, SQL Server, Oracle) for data analysis and processing. Usually, we use database tools like Navicat or the Excel import...
by: taylorcarr | last post by:
A Canon printer is a smart device known for being advanced, efficient, and reliable. It is designed for home, office, and hybrid workspace use and can also be used for a variety of purposes. However,...
by: Charles Arthur | last post by:
How do i turn on java script on a villaon, callus and itel keypad mobile phone
by: ryjfgjl | last post by:
If we have dozens or hundreds of excel to import into the database, if we use the excel import function provided by database editors such as navicat, it will be extremely tedious and time-consuming...
by: emmanuelkatto | last post by:
Hi All, I am Emmanuel katto from Uganda. I want to ask what challenges you've faced while migrating a website to cloud. Please let me know. Thanks! Emmanuel
by: BarryA | last post by:
What are the essential steps and strategies outlined in the Data Structures and Algorithms (DSA) roadmap for aspiring data scientists? How can individuals effectively utilize this roadmap to progress...
by: Sonnysonu | last post by:
This is the data of csv file 1 2 3 1 2 3 1 2 3 1 2 3 2 3 2 3 3 the lengths should be different i have to store the data by column-wise with in the specific length. suppose the i have to...

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.