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Just another version of Tom Kyte’s runstats (runstats_pkg)

I want to share my modifications of Tom Kyte's runstats package, which include:


  • Any number of runs sets for analyzing

  • Standalone: No need to create other objects

  • Ability to specify session SID for statistics gathering

  • Ability to specify what to gather: latches, stats or both

  • Separate mask filters for output by statname and latchname

  • Ability to specify difference percentage for output separately for latches and statistics

  • More accurate with some statistics because of avoiding global temporary table usage, but less in

Oracle Z to A -- I N

Oracle Database A to Z question and answers and
very importantly the Experiences also you can share here...

The Blog is for Both the beginners and as well as experienced people to discuss and gain knowledge in Oracle.

Here we are going to share every thing about Oracle....

And Simply saying, we will only work on oracle related but nothing else here....

We will Eat Oracle, Drink Oracle and Walk Oracle

Diff B/W Truncate & Delete

Delete
1.DML data can be recovered by rollback before commit
2.Remove any subset of data
3.Delete is slower when table have numerous indexes and triggers
4.DML triggers fire for delete mthod
5.data can be recovered after commit by flashback method
6.high water mark will remain the same
7.data deleted info capture with returning clause
8. you can not delete data if function based index is invalid
9. can not delete data from complex views.
10.

Oracle Database 12c: New Features - Pluggable Databases

mikerajendran's picture

Oracle Database 12c: New Features – Pluggable Databases by Michael Rajendran

Introduction

Oracle has leap forwarded the middleware technologies especially the database technology into the cloud. So far Oracle has been the traditional RDBMS database suitable for the private enterprise data centers within corporate walls.

The COST column of EXPLAIN PLAN

The COST column cannot be used to compare execution plans. Punkt.

R12 - XLA / FAH - Create Accounting errs out with "95357 - There are no values for the system source XXXXX used by SLA"

vamsi kasina's picture

In case of unitended usage of system source in conditions may lead to the following error in Create Accounting:
There is a missing system source value. Please inform your system administrator or support representative that: There are no values for the system source XXXXXXXXXXXXXXXXX used by Oracle Subledger Accounting.

What data type should I use: CHAR or VARCHAR2???

Hi,

We all know that CHAR and VARCHAR2 are two different datatypes used for storing strings in Oracle. When I asked many people about what’s the difference exactly, all were saying VARCHAR2 can be used for variable sized character strings. As I’m not satesfied with the answer, as always, I’ve decided to do my own experiments on these two.

“ORA-01081: cannot start already-running ORACLE” While creating a new Database

Hi Geeks,

When I was doing a research on Oracle Database creation, through DBCA, last week, I came across a very interesting scenario which I couldn’t stop sharing with you :)

I have a cluster of machines (don’t confuse it with a RAC cluster but just a group of machines required for my application deployment) with 11.2.0.2 installed and a Database instance running.

I got a requirement to remove everything accumulated in the machine as a result of the Oracle installation and the Database creation: The installation directories, the datafiles, oratab entries etc…

After removing all th

Can you create objects in a READ ONLY tablespace?

Hi Oracle geeks,

Last Friday, I’ve noticed a strange thing happening in my 11.2.0.3 Database: I’m able to create objects in a tablespace which is marked READ ONLY !!!

Don’t believe this??

Key Value Pair Data Model

I have just joined an in flight project and find the lead data modeler has created a name value pair data model.

The reason given was flexibility of data model considering some records can have as many as 900 attributes. The .Net application team seem to be loving it, as they can code everything with very few tables in mind.

I feel the model is difficult to query, difficult to load and difficult to syndicate and in all likelyhood will suffer from poor performance.