PLSQL Practice Set 1
Refer the Sample Schema for this practice- https://blog.otlms.in/oracle-pl-sql-practice-reference-table-schemas-for-real-world-use-cases/ This practice set is designed to push your thinking beyond syntax and […]
Oracle PLSQL
Oracle PLSQL
Oracle PL/SQL Practice – Reference Table Schemas for Real-World Use Cases
🏦 1. BANK_CUSTOMERS Stores core customer details for banking and fintech systems. 💰 2. BANK_ACCOUNTS Maintains account-level details including balances.
Oracle SQL
Analytical Functions in Oracle 19c – A Complete, Practical Guide
Introduction Analytical (also called analytic or window) functions are one of the most powerful features of the Oracle database. They
Oracle SQL
SQL MERGE Statement
Problem: Table: CUSTOMER_FIN Table: CUSTOMER_RAW Use of MERGE Statement and insert new records. Syntax MERGE INTO table_name– specify the target
Oracle SQL
Demo of SQL CASE Statement
Problem: Required: The SQL CASE statement allows you to perform IF-THEN-ELSE functionality within an SQL statement. It’s good for displaying
Oracle SQL
Subquery in Oracle
A subquery is a query nested inside another query, typically used to perform more complex searches by querying results from
Oracle SQL
Practice Character, Date & Numeric Functions (Banking & FinTech)
📖 Introduction In Banking and FinTech applications, Oracle SQL functions are used daily for: This blog provides a complete hands-on
Oracle DBA
Oracle Database Links (DB Links) – Complete Guide with Examples, Lab & Quiz
Introduction In real-world enterprise systems, data is rarely stored in a single database.Applications often need to read or write data
Oracle DBA
Oracle Database 19c Statistics Gathering
Introduction For every SQL statement, the Oracle Optimizer considers multiple execution plans and selects the plan with the lowest estimated
Oracle SQL Interview Practice
Oracle SQL Query-Based Interview Questions (0–5 Years)
Query-based questions are the most important part of Oracle SQL technical rounds.Interviewers use these questions to test: Below are commonly