What is best practice (One Global connection or Create new connection every time)

Question

0.00/5 (No votes)

See more:

SQL-Server-2012

I have developed a windows base application in WPF with VB Script, database is SQL Server 2012 and crystal report I have open a sql connection while starting my application and using this connection string this way Dim sqlconn As SqlConnection = Application.Current.Properties("sqlcn") in entire application in. This connection close only when application will close.
What should I do?
when I create new instance of every form with new connection
or
My correct logic is best

Posted 29-Dec-15 19:35pm

Member 10497060

Updated 29-Dec-15 23:05pm

Richard MacCutchan

v2

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Richard MacCutchan · Answer 1 · 2015-12-29T23:06:00

Solution 1

You should open a connection only when you want to access the database, and close it as soon as you receive the results.

Posted 29-Dec-15 23:06pm

Richard MacCutchan

Comments

Member 10497060 30-Dec-15 5:14am

What is the benefit of open and close connection when going to sql transaction? and
what is the drawback or problem of my practice?

Richard MacCutchan 30-Dec-15 5:20am

You should not hold open connections to a database, as it consumes resources.