insert multiple row at once

Question

1.00/5 (2 votes)

See more:

i have a table that have 2 columns (category and activity) i want to creat a c# form
that will insert rows data into the table. that is under category you can insert "Beautician" and the activity will be "barber, hair dresser, manicure"

i just dont know how to start. pls help me out

Posted 26-Jun-12 8:21am

mikeoabban

Add a Solution

Comments

[no name] 26-Jun-12 14:30pm

How to start what? How to start Visual Studio? How to start a project? How to create a form? How to create a database?
"pls" help us help you

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)

Tim Corey · Answer 1 · 2012-06-26T08:30:00

Solution 1

The actual SQL part of this would work via a UNION ALL operator between each line to be inserted in the one statement like so:

SQL

INSERT INTO myTable(category, activity)
SELECT 'Beautician', 'barber'
UNION ALL
SELECT 'Beautician', 'hair dresser'
UNION ALL
SELECT 'Beautician', 'manicure'

You would just need to build this statement in your C# code and then call it once against the database. This particular statement would insert three rows into the myTable table.

Posted 26-Jun-12 8:30am

Tim Corey

Comments

mikeoabban 26-Jun-12 16:34pm

thanks alot it worked. but the problem is it takes it value from a textbox into
the db. when the textbox is empty it inserts an empty space inot the db. what can
i do to prevent this

Tim Corey 27-Jun-12 8:49am

You should be doing validation on the data before you stick it into the database. Otherwise you could end up with serious issues (SQL injection, for example). On your textbox, check to be sure the data is valid before you add that line to the list. For example, check that the length is greater than zero. Also, run a RegEx against the string to be sure it doesn't contain any non-standard characters (whatever you define those as - best would be only letters and number be allowed but that depends on your business rules). That will fix your issue.

Tim Corey 27-Jun-12 11:54am

It sounds like your question has been answered. If so, please mark the solution as accepted so that people who come across this question will know it has been solved. Otherwise, they may spend their time trying to help you when you no longer require assistance. Thanks.