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…
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…
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…
What Is a DoS Attack? How It Works and Impacts Websites
Many website owners are familiar with terms like hosting, SSL, and CDN, but fewer understand one of the most common online threats:…
How Cloudflare Boosts Website Speed Without Hosting
Have you ever wondered how websites load lightning fast even if they’re hosted on shared hosting like Hostinger, GoDaddy, or Bluehost? The…
How Google Photos Fits So Many Photos in 15GB
If you’ve ever used Google Photos, you may have noticed something surprising: thousands of high-definition photos and even videos somehow fit into…
How to Fix ORA-19687: SPFILE Not Found in Backup Set
If you’re working with Oracle RMAN and trying to restore the SPFILE, running into the ORA-19687 error can be frustrating. This error…
How to Disable AutoTask in Oracle
Sometimes you may want to stop Oracle’s AutoTask jobs temporarily — for example, to troubleshoot performance issues or avoid conflicts with important…
How to Fix ORA-00054: Resource Busy and Acquire with NOWAIT Specified or Timeout Expired
While working with Oracle databases, you might encounter: If you’re wondering: This post will clarify these questions simply so you can handle…
Make Money from Empty Ad Spaces in AdSense
When you use AdSense on your website, sometimes no ad shows up in a space, leaving it blank. This is called an…
AI vs ML vs DL: What’s the Difference?
Hey everyone! Today, let’s clear up a question many beginners (and even some working professionals) have: “What’s the actual difference between AI,…
ORA-00020: Maximum Number of Processes Exceeded — What It Means and How to Fix It
Oracle error ORA-00020: maximum number of processes (string) exceeded indicates that your database has hit its process limit, as defined by the…