SQL Tuning Tools of the Trade

1. SQL
Tuning
Tools
of
the
Trade
Carlos
Sierra

2. Carlos
Sierra
• SQLTXPLAIN
+
SQL
Health-­‐Check
SQLHC
+
• Consultant/Developer/DBA/Design/+
• Oracle
Performance
+
SQL
Tuning
• Oracle
Database
Health-­‐Check
• Tools
+
Scripts
• Speaker
Enkitec
(c)
2014
2

3. SQL
Tuning
Tools
of
the
Trade
• Stand-­‐alone
Scripts
• SQLHC
• SQLTXPLAIN
6/21/14
Enkitec
©
3

4. CommonaliQes
• Input
one
SQL
statement
– SQL_ID
• Output
one
or
more
diagnosQcs
files
– Used
mainly
for
SQL
Tuning
• Make
use
of
some
Oracle
licensed
features
– DiagnosQcs
and/or
Tuning
Packs
6/21/14
Enkitec
©
4

5. CapabiliQes
Compare
6/21/14
Enkitec
©
5
Stand-­‐alone
Scripts
SQLHC
SQLTXPLAIN

6. Footprint
Compare
6/21/14
Enkitec
©
6
Stand-­‐alone
Scripts
SQLHC
SQLTXPLAIN

7. Stand-­‐alone
Scripts
• Specialized
diagnosQcs
for
SQL
Tuning
– planx.sql:
ExecuQon
Plans
from
Memory
and
RAC
– sqlmon.sql:
SQL
Monitor
Report
– sqlash.sql:
AcQve
Session
History
(ASH)
– mystat.sql:
Performance
StaQsQcs
(counters)
• Install
nothing
on
the
database
6/21/14
Enkitec
©
7

8. SQLHC
• Provides
most
common
diagnosQcs
needed
for
SQL
Tuning
• Installs
nothing
on
the
database
6/21/14
Enkitec
©
8

9. SQLTXPLAIN
• Provides
about
everything
that
is
ever
need
for
SQL
Tuning
– Robust
set
of
diagnosQcs
reports
– AutomaQc
extracQon
of
Test
Case
• Installs
two
self-­‐contained
schemas
6/21/14
Enkitec
©
9

10. 6/21/14
Enkitec
©
10

11. References
• Stand-­‐alone
Scripts
– carlos-­‐sierra.net
• SQLHC
– MOS
1366133.1
• SQLTXPLAIN
– MOS
215187.1
6/21/14
Enkitec
©
11

12. Contact
InformaQon
• carlos.sierra@enkitec.com
• carlos-­‐sierra.net
• @csierra_usa
Enkitec
(c)
2014
12