473,699 Members | 2,196 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

Updatable Cursors

I am trying to write updatable cursors in a stored procedure? Can I get
any help to write updatable cursors?

Any help would be appreciated very much.

Thanks for your help in advance.

Rajah V.

*** Sent via Developersdex http://www.developersdex.com ***
Don't just participate in USENET...get rewarded for it!
Jul 20 '05 #1
2 3893
Can you post some sample data along with table DDLs so that others can
better understand your requirements? Most likely you can use efficient
set-based logic & avoid cursors which are generally lousy, slow & resource
intensive.

--
- Anith
( Please reply to newsgroups only )
Jul 20 '05 #2
Rajah Venkata Krishnan (ra**********@a nalytics-usa.com) writes:
I am trying to write updatable cursors in a stored procedure? Can I get
any help to write updatable cursors?


As Anith, I discourage you from writing cursors. Cursors have their
place, but it is a feature which you should use rarely. The performance
of cursor compare to the corresponding set-based operation is often
magntitudes slower.

If you have a problem which actually is best addressed by a cursor, don't
bother using WHERE CURRENT OF. Make the cursor INSENSITIVE, and update
the rows through key values. I have *never* had any need for WHERE CURRENT
OF.
--
Erland Sommarskog, SQL Server MVP, so****@algonet. se

Books Online for SQL Server SP3 at
http://www.microsoft.com/sql/techinf...2000/books.asp
Jul 20 '05 #3

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

11
9012
by: Alban Hertroys | last post by:
Oh no! It's me and transactions again :) I'm not really sure whether this is a limitation of psycopg or postgresql. When I use multiple cursors in a transaction, the records inserted at the start of the transaction aren't visible to those later on in that transaction (using a different cursor). Attached is a simplified example (the except's are a bit blunt, I know) of what I'm trying to do. In reality, the different cursors are...
22
10661
by: T.S.Negi | last post by:
Hi All, I want to avoid using cursors and loops in stored procedures. Please suggest alternate solutions with example (if possible). Any suggestion in these regards will be appreciated. Thanks in advance, T.S.Negi
2
1876
by: Johnny M | last post by:
I have been using Access since office 4.3. I have just upgraded to Office 2003 and am having issues with creating updatable queries. If I link one table to a selection query based on the same table, the resulting query is not updatable. OR If I link 2 tables together that don't have a primary key the result is not updatable. I know I was able to do this in previous versions since I usually don't use a primary key. Thanks
0
1211
by: Michelle | last post by:
Hi All Here's my scenario. I have a main form (shows team details and rostered shift for selected date). This form is updatable. On this form I have a subform which shows agents belonging to the team on the Main Form. Subform is also updatable. Within the subform I have 2 more subforms. The first shows absence details, if any, for the selected date (Main Form) and agent (subform on Main form). When I open the subform from...
6
2509
by: a | last post by:
Hello, I am doing some multithreading in an MDI app, and I can't seem to get the cursor to stay as an Hourglass. I call: Cursor.Current = cursors.wait at the beginning of my routing, and set it back to cursors.default when the thread ends (using a callback)
10
17360
by: Just Me | last post by:
Does Me.Cursor.Current=Cursors.WaitCursor set the current property of Me.Cursor to Cursors.WaitCursor And Me.Cursor.Current=Cursors.Default set the Me.Current property to something (default) stored in Me.Cursor. Or is Cursors.Default some process wide cursor shape? What is a correct statement?
3
5483
by: Sim Zacks | last post by:
I have a postgresql backend with an access front end and I am trying to redefine the recordset of the form to use an ADO recordset. The problem is that the CursorType always changes to AdOpenStatic, even if I choose adOpenDynamic. If anyone has any thoughts, please let me know. The form works great for viewing, but I cannot update or insert any new records. Below is the code I am using: connectstr = "DSN=SAP_PG;uid=postgres" Set conn...
7
3549
by: H. Williams | last post by:
I know the .Net Cursor class doesn't work with color cursors. So I'm currently using the LoadCursorFromFile API with reflection to set color cursors: here is my code: public static extern IntPtr LoadCursorFromFile( string fileName ); IntPtr hwdCursor= LoadCursorFromFile( "color.cur" ); myCursor.GetType().InvokeMember("handle",BindingFlags.Public |
1
6692
by: Dima Kuchin | last post by:
Hello, I was trying to find the information about when and where should I use cursors in DB2, no luck. Maybe you can point me to some article that describes just that (or tell me which page is it in DB2 SQL reference book, if it's there)? Or maybe you can post a short answer here, if there's no dedicated article? Another question would be about scrollable cursors (just found out about their existence) - what performance gains will I...
0
8697
marktang
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...
0
8622
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,...
0
9045
jinu1996
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...
0
8892
tracyyun
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...
0
7767
agi2029
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...
0
5878
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();...
1
3062
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
2
2359
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.
3
2013
bsmnconsultancy
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...

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.