Category: PL/SQL

In Oracle PL/SQL, working with numbers often requires precise formatting, conversions, and manipulation. Converting a decimal number into a fraction is not a built-in function, but it can be achieved using mathematical techniques. This article will walk through the process of converting numbers to fractions using PL/SQL, explaining the logic and providing practical examples. Understanding…(Continue Reading)

Oracle PL/SQL is widely used for handling data operations, including numeric transformations such as converting percentages into decimals. This conversion is essential when dealing with financial calculations, statistical analysis, and database storage where decimal representation is required. In this article, we will explore different methods for converting percentages into decimals in Oracle PL/SQL. Understanding Percentage…(Continue Reading)

In the world of databases, efficiently retrieving and managing data is crucial. SQL, the standard language for managing relational databases, offers various tools and techniques to handle this task. Among these, joins are essential for combining data from multiple tables based on specific conditions. A commonly used join type is the Left Outer Join, especially…(Continue Reading)

When working with Oracle PL/SQL, developers frequently encounter the data types VARCHAR and VARCHAR2. At first glance, these might appear interchangeable, but they have distinct differences, both in their usage and historical context. Understanding these differences is critical for database developers and architects aiming to design robust and future-proof applications. What Are VARCHAR and VARCHAR2?…(Continue Reading)

The UTL_ENCODE.BASE64_DECODE function is part of Oracle’s UTL_ENCODE package, which provides utilities for encoding and decoding binary data. Specifically, the BASE64_DECODE function decodes a Base64-encoded string back into its original binary format. This is commonly used when handling encoded data in applications, such as data transfer, storage, or processing. Syntax UTL_ENCODE.BASE64_DECODE(encoded_data IN RAW) RETURN RAW;…(Continue Reading)