You can use iSeries™ Navigator to compare data sets in two different
monitors.
To compare data sets in different monitors, go to . Right-click
a monitor in the right pane and select Compare.
On
the Compare dialog, you can specify information about the data sets that you
want to compare.
- Name
- The name of the monitors that you want to compare.
- Schema mask
- Select any names that you want the compare to ignore. For example, consider
the following scenario: You have an application running in a test schema
and have it optimized. Now you move it to the production schema and you want
to compare how it executes there. The statements in the compare are identical
except that the statements in the test schema use "TEST" and the statements
in the production schema use "PROD". You can use the schema mask to ignore
"TEST" in the first monitor and to ignore "PROD" in the second monitor so
that the statements in the two monitors appear identical.
- Compare statements that ran longer than
- The minimum runtime for statements to be compared.
- Minimum percent difference
- The minimum difference in key attributes of the two statements being compared
that determines if the statements are considered equal or not. For example,
if you select 25% as the minimum percent different, only matching statements
whose key attributes differ by 25% or more are returned.
When you click Compare,
both monitors are scanned for matching statements. Any matches found will
be displayed side-by-side for comparison of key attributes of each implementation.
On
the Comparison output dialog, you view statements that are included in the
monitor by clicking Show Statements. You can also run
Visual Explain by selecting a statement and clicking Visual Explain.
