MicroStrategy 7 Administrator Guide

The table for the 1st National partition would look like:
Customer ID
Customer
Address
Member
Bank
Transaction
Amount ($)
Current
Balance ($)
123456 12 Elm St. 1st National 400.80 40,450.00
C
O
N
C
E
P
T
S
886580 907 Grove Rd. 1st National 76.35 10,333.45
This makes it easy to grant permissions by table to managers or account
executives who should only be looking at customers for a certain bank.
Partitioned fact tables are invisible to system users. Although there are many
physical tables, the system “sees” one logical fact table.
Support for partitioned fact tables for security reasons should not be confused with
the support that MicroStrategy Intelligence Server provides for partitioned fact
tables for performance benefits.
Split fact tables
Split fact tables are the creation of two or more physical fact tables from one
logical fact table. Each new table contains the same primary key, but is a subset of
the fact columns of the original fact table. Splitting fact tables allows fact columns
to be grouped based on user community. This makes security administration easy
because permissions are granted to entire tables rather than to columns.
For example, suppose a fact table contains the key labeled Customer ID and fact
columns as follows:
Customer ID
Customer
Address
Member
Bank
Transaction
Amount ($)
Current
Balance ($)
You can split the table into two tables, one for the marketing department and one
for the finance department. The marketing fact table would contain everything
except the financial fact columns as follows:
Customer ID
Customer
Address
Member
Bank
Database level security 31