SQL Matrix to array -


i working t-sql , have table looks matrix (8x8). objective make matrix (table) array using pivot ... have read forums , more stuff managed find still can't make code ...

 id     bucket     b1     b2     b3     b4   5        1        20     21     45     12  6        2        12     18     19     48  7        3        19     78     40     78    8        4        72     34     12     17

so need make "three dimensional array" table, , save row, column , value ... this

row    column   value   1       1       20  1       2       21  1       3       45  1       2       12  etc  etc  etc  4       3       12  4       4       17

does have idea how write code in t-sql?

ps. reason i'm doing this, because want multiply matrix itself. it's easier multiply if have in pivot table. thank you

try unpivoting data :

declare @table table (id int, bucket int, b1 int, b2 int, b3 int, b4 int) insert @table values (5,1,20,21,45,12), (6,2,12,18,19,48), (7,3,19,78,40,78), (8,4,72,34,12,17)  select rn [row], value [columnnumber], orders [value]  ( select row_number () on (order id) rn,id, bucket, b1 [1], b2 [2], b3 [3], b4 [4] @table ) t unpivot (     orders     value in([1], [2],[3],[4]) ) pvt

check msdn doc more details of pivot , unpivot.


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