Question

I have a huge access mdb file which contains a single table with 20-30 columns and over 50000 rows and
i have some thing like this

columns:

id desc name phone email fax ab bc zxy sd country state zip .....
1  a     ab  12     fff   12  w 2  3   2    d     sd     233
2  d     ab  12     fff   12  s 2  3   1    d     sd     233

here I have some column values related to addresses repeating is there a way to normalize the above table so that we can remove duplicates or repeating data.

Thanks in advance.

Answer 1

Here’s a quick answer. You just need to move your address fields to a new table (remove dups) and add a FK back to your primary table.

Table 1 (People or whatever)

id desc name phone email fax  ab  bc  zxy  sd   address_id 
1  a     ab  12     fff   12   w  2   3    2    1
2  d     ab  12     fff   12   s  2   3    1    2
3  d     ab  12     fff   12   s  2   3    1    2
4  d     ab  12     fff   12   s  2   3    1    1

Table 2 (Address)

address_id country state  zip .....
1          d       sd     233
2          e       ac     123