Multi dimensional Record Type

Hi Hema , Record Types uses  "recordtype!" for indexing , Use Index function instead of hard coding. And it seems you are trying to save values at index "2"  but length of array is "1"

A recordtype can be thought of as a map to or an overlay on a database table. So you need to work your way backwards from the table design to the recordtype that maps to it. You could have a a table that has 3 columns. The first column will be the first dimension, the second column the second dimension and the third column the actual value. So example rows for your examples would be:

1, 1, 2

1, 2, 3

If the only attribute you're interested in is 'a' then the whole table could be considered to be a 2-dimensional store for the attribute 'a'.

If you need more attributes you could add another column to store the attribute name in e.g.:

a, 1, 1, 2

a, 1, 2, 3

You could normalize this model and use one table to hold the attribute and the index for the first dimension and then have the second dimension in a separate table and relate the tables using a foreign key. 

In short: design your table(s) to meet your needs and then implement your records to map to the tables.