I have a table have the follow fields :

id, color1,color2,color3,color4


I need to sort the the records by color. which means record have the same color should group together. eg.

id,color1,color2,color3,color4

1,black
2,blue,green
3,yellow,green,blue
4,green,blue
5,white

so, the result should be

2,blue,green
4,green,blue
3,yellow,green,white,yellow
5,white
4,black

Because record 2,4 have the colors blue & green, and record 3 have green, and record 5 have notting.

Anyone have idea in how the program so like?

TIA.