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AI

  1. What Is AI Really? Beyond the Hype and Buzzwords
  2. How AI Actually Learns: Training, Data, and Models Explained Simply
  3. AI vs Machine Learning vs Deep Learning: What’s the Difference?
  4. Can AI Think? Understanding Intelligence vs Automation
  5. Why Everyone’s Talking About Large Language Models (LLMs)
  6. How ChatGPT Works: A Peek Behind the Curtain
  7. AI You’re Already Using Without Realizing It
  8. What AI Can and Cannot Do in 2026
  9. Why AI Makes Mistakes: Hallucinations and Limitations Explained
  10. How AI Generates Images: From Text to Art in Seconds
  11. Prompt Engineering 101: How to Talk to AI Effectively
  12. Should You Trust AI Answers? When to Verify and When to Use
  13. AI for Coding: Can It Replace Developers? (Spoiler: Not Yet)
  14. How Businesses Are Actually Using AI Today

CSS

  1. CSS Introduction
  2. How to Add CSS to HTML
  3. CSS Selectors Basics
  4. CSS Comments
  5. CSS Properties and Values
  6. CSS Units
  7. CSS Colors
  8. CSS !important
  9. CSS Selector Types
  10. CSS Universal Selector
  11. CSS Combinators
  12. CSS Attribute Selectors
  13. CSS Pseudo-Classes
  14. CSS Pseudo-Elements
  15. CSS Text & Fonts
  16. CSS Box Model & Layout Basics
  17. CSS Backgrounds & Borders
  18. CSS Dimensions & Spacing
  19. CSS Advanced Layout
  20. CSS Responsive Design
  21. CSS Transitions and Animations
  22. CSS Visual Effects
  23. CSS Variables & Functions
  24. CSS Best Practices
  25. CSS Tools and Frameworks
  26. Final Project + Wrap Up

Data Guard

  1. What is Oracle Data Guard
  2. Primary Database
  3. Types of Standby Databases in Oracle Data Guard
  4. Far Sync Instances in Oracle Data Guard
  5. Oracle Data Guard Protection Modes
  6. Redo Transport Services in Oracle Data Guard
  7. Apply Services in Oracle Data Guard
  8. Role Transitions in Oracle Data Guard
  9. Starting & Shutting Down a Physical Standby Database
  10. Opening a Physical Standby Database

Database

  1. Database vs. DBMS: Key Differences Explained
  2. Oracle DBA Roles and Responsibilities
  3. Oracle Data Pump Export (EXPDP): A Complete Guide
  4. Oracle Data Pump Import (IMPDP): A Complete Guide
  5. How to Monitor Archive Log Generation in Oracle: Best Practices
  6. How to Create an Oracle Directory for Export/Import
  7. How to Monitor and Identify Failed Login Attempts in Oracle
  8. What are Oracle Restore Points and How to Use Them
  9. What is Proxy Access in Oracle and How to Use It
  10. How to Keep Processes Running in the Background with nohup
  11. SQL Query to Check Object Count in Oracle Schema
  12. Oracle PFILE vs SPFILE: Key Differences and Usage Guide
  13. How to Recompile Invalid Schema Objects in Oracle
  14. A Comprehensive Guide to Fast Recovery Area (FRA) in Oracle
  15. How to Get DDL for Oracle Objects
  16. How to Create an SQL Baseline for a Specific SQL_ID
  17. Fixing Index Ownership Issues in Oracle
  18. How to Fix ORA-01536: Space Quota Exceeded Error in Oracle
  19. Backing Up Oracle Directories and Grants
  20. How to Find When a User’s Password Was Last Changed in Oracle
  21. How to Resolve ORA-01653: Unable to Extend Table in Tablespace
  22. What is a .PAR File and How It Works
  23. Identify and Terminate Active Statistics Collection Job in Database
  24. Kill or Disconnect Oracle Session in Single Instance & RAC
  25. Script to Track Top 10 CPU-Consuming Oracle Sessions
  26. Understanding the oratab File in Oracle: Role and Usage
  27. What is Sudo Access for Oracle DBAs and Why It’s Important
  28. Understanding Oracle DB Character Set (CHARSET)
  29. Retrieve All Key Oracle Database Information with a Single Query
  30. OPatch Command Usage for Oracle Patch Management
  31. Everything You Need to Know About Oracle NLS_DATE_FORMAT
  32. How to Write the Perfect Email: A Complete Guide
  33. How to Write the Perfect Email: A Complete Guide
  34. Oracle DATAPUMP EXPDP/IMPDP Monitoring Scripts
  35. SQL Query to Check User-wise INACTIVE Session Count in Oracle
  36. Understanding SQL>@?/rdbms/admin/sqltrpt.sql: A Detailed Guide
  37. Monitor Long Operations in Oracle
  38. Oracle Tablespace Quota Management Script
  39. Step-by-Step Guide to Creating and Executing a SQL Tuning Task
  40. How to Check Hidden Parameters in Oracle
  41. How to Export & Import Statistics in Oracle Database
  42. How to Fix ORA-39095: Dump File Space Has Been Exhausted
  43. Oracle RMAN: Scripts to Monitor Backup Progress
  44. Understanding the Find Command
  45. Generate AWR, ASH, ADDM Reports from SQL Prompt
  46. What is an SSH Key and How to Add One in Oracle
  47. How to Resolve a Hung AWR Process in Oracle
  48. Monitoring Oracle Database Growth and Space Utilization
  49. How to Find Oracle Database Size
  50. Oracle Database Patching: Common Steps
  51. Crontab in Linux: Examples and Useful Commands
  52. Oracle SQL Scripts for User Password, Account Info, and History
  53. What Is ORA-01720: ‘Grant Option Does Not Exist’ and How Do You Fix It?
  54. How to Backup User Passwords in Oracle
  55. How to Kill Oracle Export/Import Jobs
  56. Exploring Access Control Lists (ACL) Privileges in Oracle
  57. How to Manage Restricted Mode in Oracle Database
  58. How to Resolve In-Doubt 2PC Transactions in Oracle Database
  59. How to Fix ORA-01017: invalid username/password; logon denied
  60. Resolving RMAN-06617 Error in RMAN Duplicate Command
  61. Google Maps: How It Works and Why It’s Accurate
  62. Why Google Offers Free 15GB Storage on Google Photos
  63. Managing Database Links in Oracle: A Step-by-Step Guide
  64. Start and Stop MRP in Oracle Data Guard
  65. Oracle Data Guard: Features, Configuration & Best Practices
  66. What is UNDO_RETENTION: How It Works and Why It Matter
  67. How to Check Resource Limits and Utilization History in Oracle
  68. Flashback Recovery Info in Oracle: A Complete Guide
  69. Fixing ORA-39173: Exporting Encrypted Data Without Encryption
  70. Setting Up UTL_MAIL in Oracle Database: A Step-by-Step Guide
  71. Understanding the Ping Command: A Complete Guide
  72. The Ultimate Guide to the Telnet Command
  73. Complete Guide to ipconfig with Examples
  74. How to Resolve RMAN Duplicate Failure Due to Wallet Not Open
  75. How to Disable Oracle Scheduler Jobs: Job Queue Processes, Memory, SPFILE, RAC, and Non-SYS Jobs
  76. Linux Commands Cheat Sheet: A Quick Reference Guide
  77. How to Grant All Privileges to a User in Oracle
  78. Revoke All Privileges from a User in Oracle
  79. Oracle ACID Properties Explained with Examples
  80. How to Connect to Oracle Database Using SQL*Plus
  81. DBMS_SHARED_POOL.PURGE Not Working? Here’s the Fix
  82. How to Assign a Dedicated Temporary Tablespace to a User in Oracle
  83. How to Fix “NtCreateFile(\Device\VBoxDrvStub) Failed” Error in VirtualBox 7.1.6 on Windows
  84. Automate Oracle DBA Login with a Custom Alias on Linux
  85. How to Access Your Virtual Machine on VirtualBox Using MobaXterm
  86. How to Install Oracle 19c on Amazon Linux 2 (2025) | Step-by-Step Guide
  87. How to Download and Install Oracle 19c on Oracle Linux 8.10 (x86_64) in VirtualBox VM
  88. Oracle Manual DB Switchover: Primary to Standby with DGMGRL
  89. How to Remove a Cached SQL Execution Plan in Oracle
  90. How to Use Oracle SQL Developer Extension in VS Code
  91. Get Oracle User Privileges: App, Custom, Default & All Users
  92. How to Copy Data from Prod to Test via DB Link
  93. What is SET TIME ON and SET TIMING ON in Oracle?
  94. Troubleshooting Inter-Node Network Issues in Oracle RAC
  95. Oracle DB Startup Steps on Linux
  96. Top Network Ports Every IT Pro Should Remember
  97. Oracle DB Shutdown Steps on Linux
  98. Purge Unified Audit Trail in Oracle to Free Up SYSAUX Space
  99. Test Network Latency Using ping -c 900 Command
  100. How to Perform Tablespace-Level Export/Import Within the Same Oracle Database
  101. How to Perform Tablespace-Level Export/Import Between Two Oracle Databases
  102. How to Open the Standby Database When the Primary Is Lost
  103. Why Fast Queries Suddenly Slow Down — And What Causes Execution Plan Changes in Oracle
  104. How to Backup and Restore ORACLE_HOME Binaries and Oracle Inventory Before Patching
  105. How to Backup Oracle oratab, .bash_profile, and Environment Variables
  106. Automate ORACLE_HOME and Oracle Inventory Backup (with One-Click Restore) Before Patching
  107. How to Check If Your Oracle Database Is Multitenant (CDB or non-CDB)
  108. How to Fix ORA-31696 When Using DIRECT_PATH Import in Oracle Data Pump
  109. How to Fix “ORA-28011: the account will expire soon; change your password now”
  110. How to Delete Multiple Lines in vi Editor
  111. How to Fix ORA-39142: Incompatible Dump File Version in impdp
  112. How to Fix ORA-00959: Tablespace ‘TEST_TBS’ Does Not Exist
  113. How to Fix ORA-00059: Maximum Number of DB_FILES Exceeded in Oracle
  114. ORA-00020: Maximum Number of Processes Exceeded — What It Means and How to Fix It
  115. How to Fix ORA-00054: Resource Busy and Acquire with NOWAIT Specified or Timeout Expired
  116. How to Disable AutoTask in Oracle
  117. How to Fix ORA-19687: SPFILE Not Found in Backup Set
  118. Should You Use “@” in Oracle Passwords? Risks, Errors & Fixes
  119. ORA-14451: Unsupported Feature with Temporary Table
  120. ORA-00030: User Session ID Does Not Exist
  121. How to Fix ORA-12560: TNS Protocol Adapter Error in Oracle
  122. How to Set Up Oracle Wallet for Passwordless Login (19c/21c)
  123. How to Create & Manage Oracle Bigfile Tablespaces
  124. What’s New in Oracle AI Database 26ai? A Simple Guide
  125. How to Generate IOPS and I/O Performance Reports in Oracle 19c
  126. How to Recover Truncated Table Using Flashback in Oracle
  127. How to Export Oracle Standby Data via Network Link
  128. Oracle CTAS: The Complete Guide to Copying Tables (With All Dependencies)
  129. How to Enable Trace 10053 for a SQL Query in Oracle
  130. Resolving Invalid DBMS_AUDIT_UTIL Package in Oracle Database
  131. How to Multiplex Control Files in Oracle Database (Linux & Windows)

Finance

  1. The Complete CIBIL Score Guide: Everything You Need to Know in 2026
  2. Why 90% of Indians Struggle With Money (Even High Earners)

Getting Started with Oracle DBA

  1. Oracle DBA Role Explained
  2. DBMS and OS
  3. Oracle DB: Editions & Versions
  4. Database Server
  5. Database Instance
  6. System Global Area
  7. Program Global Area
  8. Background Processes
  9. Shared Pool
  10. Large Pool
  11. Database Buffer Cache
  12. In-Memory Area
  13. Container Database (CDB)
  14. Application Containers
  15. Database Storage Structures
  16. Tablespaces
  17. Schemas and Schema Objects
  18. Database System Files
  19. Automatic Diagnostic Repository (ADR)
  20. Backup Files
  21. Process Monitor (PMON)
  22. Process Manager (PMAN)
  23. Listener Registration Process (LREG)
  24. SMON – System Monitor Process
  25. Database Writer Process (DBWn)
  26. Checkpoint Process (CKPT)
  27. MMON & MMNL (Manageability Monitor Processes)
  28. Recover Process (RECO)
  29. Log Writer Process (LGWR)
  30. Archiver Process (ARCn)
  31. Job Queue Coordinator Process (CJQ0)
  32. Recovery Writer Process (RVWR)
  33. Flashback Data Archiver Process (FBDA)
  34. Space Management Coordinator Process (SMCO)
  35. Dispatcher Process (Dnnn) & Shared Server Process (Snnn)
  36. Introduction
  37. Understanding Databases
  38. Database vs Spreadsheet vs Flat Files
  39. Database Management System (DBMS)
  40. Relational Database Concepts
  41. Types of Databases

HTML

  1. HTML Course Overview
  2. HTML Overview
  3. HTML Introduction
  4. HTML Editors & Setup
  5. HTML Document Structure
  6. HTML Basic Examples
  7. HTML Elements
  8. HTML Attributes
  9. HTML Headings
  10. HTML Paragraphs
  11. HTML Text Formatting
  12. HTML Quotations
  13. HTML Comments
  14. HTML Styles (Inline, Internal, External)
  15. HTML Colors
  16. HTML CSS Basics (Using CSS with HTML)
  17. HTML Links
  18. HTML Images
  19. HTML Favicon
  20. HTML Page Title
  21. HTML Lists
  22. HTML Tables
  23. HTML Block vs Inline Elements
  24. HTML Div Element
  25. HTML Classes
  26. HTML ID
  27. HTML Layout Techniques
  28. HTML Responsive Design
  29. HTML Forms Overview
  30. HTML Form Elements
  31. HTML Input Types
  32. HTML Form Attributes
  33. HTML Input Attributes
  34. HTML Buttons
  35. HTML Iframes
  36. HTML JavaScript Integration
  37. HTML Head Element
  38. HTML Meta Tags
  39. HTML File Paths
  40. HTML Semantic Elements
  41. HTML Style Guide & Best Practices
  42. HTML Entities
  43. HTML Symbols
  44. HTML Emojis
  45. HTML Character Sets
  46. HTML URL Encoding
  47. HTML Graphics Overview
  48. HTML Canvas
  49. TML SVG
  50. HTML Media Overview
  51. HTML Video
  52. HTML Audio
  53. HTML Plug-ins
  54. HTML YouTube Embedding
  55. HTML Web APIs Introduction
  56. HTML Geolocation API
  57. HTML Drag and Drop API
  58. HTML Web Storage API
  59. HTML Web Workers
  60. HTML Server-Sent Events (SSE)
  61. HTML vs XHTML

JavaScript

  1. What is JavaScript?
  2. JavaScript Execution: Browser vs Node.js
  3. How to Install Node.js
  4. Writing Your First JavaScript Program
  5. JavaScript Variables and Data Types
  6. JavaScript Operators and Expressions
  7. JavaScript Control Statements
  8. Loops in JavaScript
  9. JavaScript Functions
  10. Working with Data
  11. JavaScript DOM Manipulation
  12. JavaScript Browser Objects
  13. Object-Oriented JavaScript (OOP)

News

  1. How to Check Aadhaar Status Online Using Enrollment Number

Oracle Database Architecture

  1. FUNDAMENTALS FIRST
  2. INSTANCE vs DATABASE
  3. MEMORY ARCHITECTURE

Oracle DBA D2D Tasks

  1. Overview
  2. Install Oracle 19c on Amazon Linux 2 (GUI-Based)
  3. Oracle 19c Silent Install & DB Creation on Oracle Linux 8
  4. Connect to Database
  5. Check Database Status
  6. Oracle Database Start and Stop
  7. Oracle User Management
  8. Clone Oracle User with user_profile.sql Script
  9. Oracle Tablespace Management
  10. Oracle Session Management
  11. Archive Log Generation in Oracle
  12. Oracle Access Control Lists (ACLs)
  13. Oracle Manual Switchover (Primary ➝ Standby) – DGMGRL
  14. Start & Stop MRP Process in Oracle Data Guard
  15. Disable Oracle Scheduler Jobs: Job Queue, Memory, SPFILE, RAC, Non-SYS Jobs
  16. SCP File Transfer
  17. Create Directory
  18. .par File in Oracle Data Pump
  19. Oracle Table Refresh
  20. Oracle Schema Refresh
  21. Full DB Refresh
  22. Schema Object Count
  23. Extract DDL for Oracle Objects
  24. Transfer Schema Statistics from Source to Target Database
  25. Oracle Restore Points
  26. File System Housekeeping with find Command
  27. Fast Recovery Area (FRA)
  28. Oracle DB Patching: Key Steps
  29. Oracle GoldenGate GGSCI Commands
  30. Oracle SRVCTL Commands
  31. Oracle CRSCTL Commands
  32. Oracle RMAN Commands
  33. Linux Commands for Oracle DBA
  34. ASMCMD Commands for Oracle ASM
  35. Oracle DBMS_SCHEDULER Commands
  36. Oracle Data Guard Broker (DGMGRL) Commands
  37. Oracle Flashback Commands
  38. ADRCI Commands
  39. Recompile Invalid Schema Objects in Oracle
  40. Generate AWR, ASH, ADDM Reports from SQL Prompt
  41. Oracle Index Management
  42. Oracle Kill Session – ALTER SYSTEM KILL Session

Oracle DBA Interview Q&A

  1. Oracle DBA Interview Basics
  2. Oracle Database Architecture
  3. Oracle Database Startup and Shutdown
  4. Oracle User and Security Management
  5. Oracle Tablespace & Storage Management
  6. Oracle RMAN Backup & Recovery
  7. Oracle Data Pump Export & Import
  8. Oracle Data Guard
  9. Oracle RAC (Real Application Clusters)
  10. Oracle GoldenGate
  11. Oracle Performance Tuning & Monitoring

Performance Tuning

  1. Oracle Performance Tuning Overview
  2. What Is a Bad SQL Query? (And Why It Slows Everything Down)
  3. Purge SQL Plan from Shared Pool in Oracle
  4. Create a SQL Plan Baseline in Oracle
  5. restore_tables_stats_v1.sql
  6. table_stats_sqlid_v1.sql
  7. sql_ash_exec_hist_v1.sql

Security

  1. Password Security in 2026: What Actually Works (And What Doesn’t)
  2. Public WiFi: What’s Really Dangerous and What’s Safe
  3. Your Phone Is Leaking Data: Privacy Settings to Change Now
  4. How Hackers Actually Get Into Your Accounts (And How to Stop Them)

SEO

  1. 10 On-Page SEO Tips to Improve Your Website’s Rankings in 2025
  2. How to Choose the Best SEO-Friendly WordPress Theme for Top Rankings
  3. SEO Blog Writing: Easy Tips to Rank Higher & Engage Readers
  4. How Google Ranks Pages: The Secret Behind Your Rankings
  5. How to Do Keyword Research Like a Pro: A Step-by-Step Guide
  6. On-Page SEO Checklist for Better Rankings
  7. Backlink Strategy 2025: How to Build High-Quality Links for SEO
  8. Key Technical SEO Fixes for Better Performance and Rankings
  9. What is Robots.txt? Why It’s Important for SEO
  10. Google Algorithm Updates: Staying Ahead of SEO Change
  11. How AI is Revolutionizing SEO for Better Rankings
  12. What is an XML Sitemap and How is it Important for SEO
  13. How Cloudflare Boosts Website Speed Without Hosting
  14. What Is a DoS Attack? How It Works and Impacts Websites

Shell Scripts

  1. Shell Scripts Overview
  2. GoldenGate Process Monitor
  3. Monitoring Standby Apply Lag with Shell Script
  4. Automate Deletion of Old Archive Logs Using RMAN
  5. Monitoring Blocking Sessions in Oracle (RAC & Single Instance)
  6. Monitor ASM Diskgroup Usage
  7. Monitor Failed Login Attempts
  8. Filesystem & ZFS Usage Alert Script for Unix/Linux
  9. Automatically Archive and Compress Oracle Alert Logs
  10. Oracle Tablespace Usage Monitor with Email Alerts
  11. Oracle Alert Log Monitoring with ORA- Error Notifications

SQL

  1. SQL Overview
  2. SQL Syntax
  3. SQL Statements
  4. SQL Comments
  5. SQL Data Types
  6. SQL SELECT
  7. SQL SELECT DISTINCT
  8. SQL WHERE
  9. SQL AND / OR / NOT
  10. SQL Comparison Operators
  11. SQL LIKE & Wildcards
  12. SQL ORDER BY
  13. SQL LIMIT / TOP / FETCH FIRST
  14. SQL INSERT
  15. SQL INSERT SELECT
  16. SQL UPDATE
  17. SQL DELETE
  18. SQL COUNT / SUM / AVG / MIN / MAX
  19. SQL GROUP BY
  20. SQL HAVING
  21. SQL CASE
  22. SQL INNER JOIN
  23. SQL LEFT JOIN
  24. SQL RIGHT JOIN
  25. SQL FULL JOIN
  26. SQL SELF JOIN
  27. SQL CROSS JOIN
  28. SQL UNION / UNION ALL
  29. SQL Aliases
  30. SQL Subqueries
  31. SQL EXISTS / ANY / ALL
  32. SQL SELECT INTO
  33. SQL Window Functions
  34. SQL CREATE DATABASE
  35. SQL DROP DATABASE
  36. SQL CREATE TABLE
  37. SQL ALTER TABLE (Add, Drop, Modify)
  38. SQL DROP TABLE
  39. SQL NOT NULL / DEFAULT
  40. SQL UNIQUE
  41. SQL PRIMARY KEY
  42. SQL FOREIGN KEY
  43. SQL CHECK
  44. SQL AUTO_INCREMENT / IDENTITY
  45. SQL INDEX
  46. SQL VIEW
  47. SQL Injection (Prevention Tips)
  48. SQL GRANT / REVOKE (Permissions)
  49. SQL NULL Handling
  50. SQL Date & Time Functions
  51. SQL String Functions
  52. SQL Math Functions
  53. SQL Stored Procedures
  54. SQL Triggers
  55. SQL Transactions (BEGIN, COMMIT, ROLLBACK)
  56. SQL Error Handling (TRY/CATCH / Exception blocks)
  57. SQL Operators List

Web

  1. API Economy: How APIs are Changing the Digital Landscape
  2. Low-Code vs. No-Code: Revolutionizing Application Development
  3. What Are Internet Cookies and Why Do They Matter?
  4. How to Create a Mobile App for Your Website
  5. How to Boost WordPress Website Speed: Best Practices & Tools
  6. What is Ads.txt? How It Improves Ad Revenue and Prevents Fraud
  7. Are WordPress Plugins Safe? The Risks No One Talks About!
  8. Must-Have WordPress Plugins for Every Website
  9. Google Search Console: Domain vs. URL Prefix – Which One to Use?
  10. Google AdSense Approval: Essential Requirements You Must Meet
  11. HTTP Methods in Postman: Practical Guide
  12. Domain Extensions Explained: Which One Fits Your Website?
  13. How Google Photos Fits So Many Photos in 15GB
  14. Speed Up Your WordPress Site
  15. The WordPress Setting Killing Your Site Speed
  16. How to Completely Disable Comments in WordPress (Correct Settings Explained)