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Flashback query in oracle

 Atikh Shaikh     oracle, Oracle 12c, oracle 19c     No comments   

You must have heard about the time machine in movies or magazines, just think of an oracle providing the same feature with its databases, and that is called a flashback.  We can go back in time to query data from the table, of course, there are certain limits to it, but it’s possible, we will learn this with an example.  Here is the table employee, with...
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pfile and spfile in oracle database

 Atikh Shaikh     12c, oracle, Oracle 12c, oracle 19c     No comments   

 In this short article, we will discuss the server parameter file and initialization parameter file i.e., spfile and pfile   pfile - parameter file, is a text-based file, readable and editable with any text editor spfile- server parameter file, binary file, readable with only some utility and can not be edited.   pfile is called...
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using nid to change oracle database SID or oracle database name

 Atikh Shaikh     oracle     No comments   

In this article, we will discuss using the nid utility to change database sid or database name without dropping and recreating the database, before starting this activity make sure you have a good backup of the database as a rollback strategy.  current database name:        technodb new database name:   ...
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Installation of Python 3.10 on windows

 Atikh Shaikh     mysql, oracle, PostgreSQL, python     No comments   

This is going to be a short article with just a few steps for the installation of pythonStep 1: download python for windows for installation from https://www.python.org/downloads/windowsStep 2: click on .exe file for execution, you will...
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Introduction to Python and Writing first program

 Atikh Shaikh     oracle, python     No comments   

Python is an open-source programming language, open-source refers to free availability and cost-effectiveness. Python is a cross-platform language- it means once the program is written in python, the same code can be executed on any operating...
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ORA-39161: Full database jobs require privileges

 Atikh Shaikh     12c, oracle, oracle19c     No comments   

I was trying to take full export backup of the database using user from the pluggable database, the export command threw below error   Users\shaik>expdp userid=techno_user@technopdb directory=export_dir dumpfile=expdp_full_db.dmp logfile=expdp_full.log full=y   Export: Release 19.0.0.0.0 - Production on Tue Jun 14 20:42:47 2022 Version...
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