Get the value between the intersection of row and column in mysql?

Question

0.00/5 (No votes)

See more:

I want to get the value between the intersection of row and column.
For example, the condition is if Model1 and Plan999 it should get 1200 value or if Model1 and Plan 1200 get 600 value. what is the query to use using mysql as backend and vb.net as frontend.

id | Plan 999 | Plan 1200
------------------------------------
Model1 | 1200 | 300
Model2 | 1300 | 600

Posted 27-Nov-14 15:40pm

Member 10581866

Add a Solution

Comments

DamithSL 27-Nov-14 22:19pm

what have you tried so far?
try to build your sql statement with with the user selected conditions and then you can set the parameter values. execute the sql statement and fetch the results.

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)

DamithSL · Answer 1 · 2014-11-27T16:39:00

you can create sql statement which

VB

'inputs 
Dim id As String = "Model1"
Dim plan999 As Integer = 1200
Dim plan1200 As Integer = 0
'based on inputs try to select the columns which you want and also change the where condition based on the condition 
Dim sql As String = "select id, CASE when @Plan999 = 0 then [Plan 1200] else [Plan 999] END CASE from TableName where id =@id and (@Plan999 = 0 Or [Plan 999] = @Plan999) and (@Plan1200 = 0 Or [Plan 1200] = @Plan1200)"
' create SqlCommand with about sql and set the parameter value 
'Finally execute it and take the results.

Hope this will help you to get started