Best performance ruining tools for Oracle

Hello experts,

Can you please suggest any good performance tuning tools for oracle database which will also help sql and plsql code tuning too.
LVL 17
Swadhin RaySenior Technical Engineer Asked:
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sdstuberConnect With a Mentor Commented:
Some of the best tools come with the database

autotrace
trace/tkprof
dbms_profiler
dbms_hprof

awr/ash - these do require additional licensing though

For a free, 3rd party tool
sqld360 is nice to gather lots of data about a sql statement and db status
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Swadhin RaySenior Technical Engineer Author Commented:
Adding to my question the tool should also help in code review for forms/reports/ java code too
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Pawan KumarDatabase ExpertCommented:
I think you should start with  Oracle SQL Profiler. Find the queries which are taking longer time.  Read the plan and fix the issues. if you are only looking for tool then you can use Foglight for Oracle. URL for the same is - https://www.quest.com/products/foglight-for-oracle/. Trial is free, you can download and check.
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Geert GOracle dbaCommented:
Our external oracle tuning dba, he sees all, finds all and explains all performance problems

Tuning is a black art.
The cause of the performance problem can be different every time.
 
You can't just let a tool on it to fix and solve everything.

Oracle has been trying this as automated process for decades.
Have you ever seen an autocreated index because of a performance problem ?
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