When working with nullable fields, it's important to understand that NULL does not behave like a typical numeric value. If you try to add 1 to a NULL in PL/SQL (null + 1), the resulting value will itself be NULL ...
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Null in PL/SQL: Definition, Uses, and Best Practices
In PL/SQL, null represents the absence of a value or the unknown state. It is not the same as zero or an empty string; rather, it signifies the absence of any defined data. It can be used to indicate missing ...
PL/SQL GOTO Examples
In this tutorial, we will explore the GOTO statement examples in PL/SQL, a procedural extension of SQL used in Oracle databases. The GOTO statement is a control structure used to alter the flow of execution in a program. While it's ...
PL/SQL CASE Examples
The PL/SQL CASE statement is a control structure that allows you to execute a sequence of statements based on a condition or the value of an expression. It's akin to the switch statement in other programming languages and provides a ...
PL/SQL IF Condition Examples
Welcome to a detailed tutorial on using IF conditions in PL/SQL. PL/SQL, Oracle Database's procedural extension to SQL, offers robust control structures like IF conditions. These conditions are essential for decision-making in your PL/SQL programs, enabling you to execute code ...
How to Start a Programming Blog? Comprehensive Guide
So You Want to Start a Programming Blog? Here's How to Do It Right. Have you been considering starting a programming blog but feel overwhelmed by all the options and decisions involved? Don't worry - with the right strategy and ...
How to Create a Table in PL/SQL Procedure in Oracle?
In Oracle PL/SQL, you can create a table within a PL/SQL procedure using the EXECUTE IMMEDIATE statement to execute a dynamic SQL statement that contains the CREATE TABLE statement. Here's a step-by-step guide on how to create a table in ...
Oracle Apex Collection: Update Member Examples
In this tutorial, you will learn how to update collections in Oracle Apex using the APEX_COLLECTION.UPDATE_MEMBER procedure. In Oracle Application Express (Oracle Apex), the capability to manage collection members is fundamental for dynamic data handling. Here, we'll explore the APEX_COLLECTION ...
How to Create a Collection in Oracle Apex?
You can use apex_collection.create_collection procedure to create a collection in Oracle Apex. In this tutorial, you will learn how to create collections and add data to them in Oracle Apex. What is Collection in Oracle Apex Before we learn how ...
Can Oracle Database Run on MAC?
The straightforward answer is No. You can not run Oracle Database on MAC OS. Oracle Database is a relational database management system (RDBMS) that stores data in tables and other objects. Oracle Database can run on Windows, Linux, and UNIX ...