MicroStrategy 7 Administrator Guide

COUNT (column)
Support
Some database platforms do no support
count on a column (COUNT(COL)). This
setting will convert the COUNT(COL)
statement to a COUNT(*).
• Use COUNT(column)
• Use COUNT(*)
Use
COUNT(column)
Metric Join Type Type of join used in a metric. • Equi-Join
• Outer-Join
Equi-Join
Null Check
Indicates how to handle arithmetic
operations with null values.
• Do nothing
• Check for NULL values in
all queries
• Check for NULL values in
temp table join only
Check for NULL
values in temp
table join only
Null Display
One or two user-defined strings (one for
each NULL case, separated by commas)
displayed where null values occur in a
report. The first NULL case comes directly
from the database as a result of a query. The
second NULL case comes from crosstabulation
of the report.
User defined
NULL
Separate COUNT
DISTINCTs
Indicates how to handle COUNT (and other
aggregation functions) when DISTINCT is
present in the SQL.
• One pass
• Use same pass for
multiple count (or any
aggregation function)
distincts but the column
being counted must be the
same
• Use only one distinct per
pass
One pass
Zero Check Indicates how to handle division by zero. • Do nothing
• Check for zero values in
all queries
• Check for zero values in
temp table join only
Check for zero
values in all
queries
A
P
P
E
N
D
I
X
E
S
VLDB Properties 229