How to get the last value found in a column and store it in variable?

Question

2.00/5 (1 vote)

See more:

How to get the last value found in a column and store it in variable? E.g.

id is not primary or unique key.

C#

id  name  age
6   jer   19 
8   mat   30 
9   ben   40

i will insert this new column below, name sis, but first i want to create code that will automatically found the last higher number and when the last higher number found. the next inserted row will increment by 10. so the age of row inserted below will become 50 since the last age found is 40.

C#

10 sis _?_

To make it easier. i want a database code that will automatically found the higher/large number found in age and once the code found the higher number i will add new row. it will increment(ed) by 10.

Posted 25-Jul-13 15:16pm

Gishisoft

Updated 25-Jul-13 18:56pm

Thanks7872

v3

Add a Solution

Comments

Sergey Alexandrovich Kryukov 25-Jul-13 21:25pm

Can you define "last"? Keep in mind that you cannot assume any predefined order of records in a table...
—SA

Gishisoft 25-Jul-13 21:35pm

assuming the last age is 40. so your code for the age of sis will increment by 10 since the last age found in the table which is 40. therefore when you insert sis as a new row, the age of sis will automatically incremented by the last age found which it will become to 50.

Gishisoft 25-Jul-13 21:37pm

Your code will depend the last age found and generate a new age incremented by 10.

2 solutions

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)

Thanks7872 · Answer 1 · 2013-07-25T19:06:00

Solution 2

C#

Select TOP 1 age from table_name ORDER BY age DESC

Take this output in variable,increment it by 10,enter it in your desired field.

Call again if still have any doubts.

Regards..:laugh:

Posted 25-Jul-13 19:06pm

Thanks7872

Updated 25-Jul-13 19:07pm

v2

Gishisoft · Answer 2 · 2013-07-25T15:25:00

Solution 1

Try this code:
@num = max(age);

Posted 25-Jul-13 15:25pm

Gishisoft