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HomeHomeUsing DNN Platf...Using DNN Platf...Using Modules a...Using Modules a...How to create algorithm or formula to get the combinations?How to create algorithm or formula to get the combinations?
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6/11/2011 3:05 PM
 

i want to create an algorithm or formula that gives me the following combinations below. I have manually printed out all the combinations for the example containing 4 tables with respective values.

This is not permutation because i need the combinations to always follow the unique format

Table1,Table2,Table3,Table4 values

So how can i achieve this in SQL script or through C# code (VB.Net code can also work)

Note: the solution contain all the possible 48 combinations i need for my problem.

Problem

Table1     Table2     Table3     Table4
a1             b1           c1             d1
a2             b2           c2             d2 
a3                            c3
                                c4 

Solution

a1,b1,c1,d1
a1,b1,c1,d2
a1,b1,c2,d1
a1,b1,c2,d2
a1,b1,c3,d1
a1,b1,c3,d2
a1,b1,c4,d1
a1,b1,c4,d2

a1,b2,c1,d1
a1,b2,c1,d2
a1,b2,c2,d1
a1,b2,c2,d2
a1,b2,c3,d1
a1,b2,c3,d2
a1,b2,c4,d1
a1,b2,c4,d2

a2,b1,c1,d1
a2,b1,c1,d2
a2,b1,c2,d1
a2,b1,c2,d2
a2,b1,c3,d1
a2,b1,c3,d2
a2,b1,c4,d1
a2,b1,c4,d2

a2,b2,c1,d1
a2,b2,c1,d2
a2,b2,c2,d1
a2,b2,c2,d2
a2,b2,c3,d1
a2,b2,c3,d2
a2,b2,c4,d1
a2,b2,c4,d2

a3,b1,c1,d1
a3,b1,c1,d2
a3,b1,c2,d1
a3,b1,c2,d2
a3,b1,c3,d1
a3,b1,c3,d2
a3,b1,c4,d1
a3,b1,c4,d2

a3,b2,c1,d1
a3,b2,c1,d2
a3,b2,c2,d1
a3,b2,c2,d2
a3,b2,c3,d1
a3,b2,c3,d2
a3,b2,c4,d1
a3,b2,c4,d2
  

 
New Post
6/12/2011 2:41 AM
 
Select Table1.A, Table2.B, Table3.C, Table4.D
FROM Table1
CROSS JOIN Table2
CROSS JOIN Table3
CROSS JOIN Table4
ORDER BY A, B, C, D;

Cheers from Germany,
Sebastian Leupold

dnnWerk - The DotNetNuke Experts   German Spoken DotNetNuke User Group

Speed up your DNN Websites with TurboDNN
 
New Post
6/12/2011 4:18 AM
 
Hello Sebastian Thanks you for the reply.. i was just wondering how to do this if these four tables are actually 4 columns in a single table???
 
New Post
6/12/2011 6:05 PM
 
Hi Adnan,
replace Table1 by "SELECT A FROM Table" AS Table 1
etc.

Cheers from Germany,
Sebastian Leupold

dnnWerk - The DotNetNuke Experts   German Spoken DotNetNuke User Group

Speed up your DNN Websites with TurboDNN
 
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HomeHomeUsing DNN Platf...Using DNN Platf...Using Modules a...Using Modules a...How to create algorithm or formula to get the combinations?How to create algorithm or formula to get the combinations?


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