SQLT Diagnostic Tool
Tool that helps to diagnose SQL statements performing poorly
SQLT
Overview
SQLTXPLAIN,
also known as SQLT, is a tool provided by Oracle Server Technologies
Center of Expertise - ST CoE. SQLT inputs one SQL statement and outputs a
set of diagnostics files. These files are commonly used to diagnose SQL
statements performing poorly. SQLT connects to the database and
collects execution plans, Cost-based Optimizer CBO statistics, schema
objects metadata, performance statistics, configuration parameters, and
similar elements that influence the performance of the SQL being
analyzed.Install Instructions :
Download sqlt_latest.zip to the server and unzip its contents into the staging area .
During the installation you will be asked to enter values for these parameters:
- Optional Connect Identifier (mandatory when installing in a Pluggable Database) In some restricted-access systems you may need to specify a connect identifier like
SQLTXPLAIN
password.
Case sensitive in most systems.SQLTXPLAIN
Default Tablespace.
Select from a list of available permanent tablespaces which one should be used by SQLTXPLAIN
Temporary Tablespace.
Select from a list of available temporary tablespaces which one should be used by - Optional Application User. This is the user that issued the SQL statement to be analyzed. For example, if this were an EBS system specify
- Licensed Oracle Pack. (T, D or N) You can specify
@PROD
. If a connect identifier is not needed, enter nothing and just hit the "Enter" key. Entering nothing is the most common setup.The Connect Identifier is a mandatory parameter when installing SQLT in a Pluggable Database.
SQLTXPLAIN
for the SQLT
repository. It must have more than 50MB of free space.SQLTXPLAIN
for volatile operations and objects.APPS
, on Siebel you would specify SIEBEL
and on People Soft SYSADM
. You won't be asked to enter the password for this user. You can add additional SQLT
users after the tool is installed, by granting them role SQLT_USER_ROLE
.T
for Oracle Tuning, D
for Oracle Diagnostic or N
for none. If T
or D
is selected, SQLT
may include licensed content within the diagnostics files it produces. Default is T
. If N
is selected, SQLT
installs with limited functionality.
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