How to Recover Truncated Table Using Flashback in Oracle
Truncating a table removes all data instantly, and a simple rollback cannot undo it. But if Flashback Database was enabled before the…
How to Check Aadhaar Status Online Using Enrollment Number
When you apply for Aadhaar or update details, UIDAI gives you a 28-digit Aadhaar Enrollment Number (EID) on your acknowledgement slip. Many…
How to Generate IOPS and I/O Performance Reports in Oracle 19c
This document explains how to generate IOPS and I/O throughput reports in Oracle Database 19c for both Single Instance and RAC databases.…
What’s New in Oracle AI Database 26ai? A Simple Guide
Oracle just launched Oracle AI Database 26ai in October 2025, and it’s a game-changer. Think of it as your database getting superpowers…
How to Create & Manage Oracle Bigfile Tablespaces
Bigfile tablespaces are commonly used in modern Oracle environments where large storage volumes, ASM, and Oracle Managed Files (OMF) are standard. They…
How to Set Up Oracle Wallet for Passwordless Login (19c/21c)
Oracle Wallet allows secure storage of database login credentials and enables passwordless authentication for scripts, applications, and command-line tools. Instead of exposing…
How to Fix ORA-12560: TNS Protocol Adapter Error in Oracle
If you’ve just installed Oracle Database and tried connecting using SQL*Plus, you might have seen this frustrating error: Don’t worry — this…
ORA-00030: User Session ID Does Not Exist
The Oracle error ORA-00030: user session ID does not exist occurs when you try to perform an action on a session that…
ORA-14451: Unsupported Feature with Temporary Table
The Oracle error ORA-14451: unsupported feature with temporary table occurs when you try to use an operation that is not supported on…
Should You Use “@” in Oracle Passwords? Risks, Errors & Fixes
When setting strong passwords in Oracle, it’s tempting to use special characters like @. But in Oracle’s world, @ isn’t just another…