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15 Nov

EXPLAIN PLAN and DBMS_PROFILER

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In Oracle SQL, EXPLAIN PLAN and DBMS_PROFILER are tools used to analyze and optimize query performance, but they serve different purposes and provide distinct insights. EXPLAIN PLAN EXPLAIN PLAN helps you understand the query execution path chosen by the Oracle optimizer. It shows the series of operations Oracle will use to execute your SQL statement, such as table scans, index scans, joins, and sorts. By examining the execution plan, you can identify areas where the query could be optimized. Key Operations in EXPLAIN PLAN: Table Access: Indicates how the table is accessed, such as a full scan (TABLE ACCESS FULL)…

29 Sep

Procedure in PLSQL

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Procedure in PLSQL In PL/SQL, a procedure is a subprogram that performs a specific task and can be called to execute its statements. Procedures can take parameters (inputs and outputs) and are typically used to encapsulate and organize code to perform a specific action, but they do not return values directly like functions. Here’s a basic overview of a procedure:Syntax: CREATE OR REPLACE PROCEDURE procedure_name ( parameter_name [IN | OUT | IN OUT] datatype ) IS -- Declaration section BEGIN -- Executable section -- Code to perform some action END procedure_name; Enter fullscreen mode Exit fullscreen mode IN: Used to…

25 Sep

Understanding and Configuring Oracle Access Control Lists (ACLs) for Email Sending Using UTL_MAIL

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Introduction This article is based on real problems I had in a production environment in Oracle 11g. Oracle Database provides powerful networking capabilities, allowing PL/SQL programs to interact with external systems over the network. To enhance security, Oracle introduced Access Control Lists (ACLs) starting from Oracle Database 11g. ACLs enable fine-grained control over network access, ensuring that only authorized users and programs can communicate with specified external hosts and services. This article provides a comprehensive guide to understanding ACL capabilities in Oracle, how to configure them, and how to send emails using the UTL_MAIL package. We will walk through the…

20 Sep

Oracle APEX Tutorial: Master Database Development with Vinish.dev

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Are you looking to enhance your database development skills? Introducing Vinish.dev, your premier destination for comprehensive Oracle APEX Tutorials. Whether you're a beginner eager to learn the basics or an experienced developer aiming to deepen your expertise, our platform offers everything you need to excel in Oracle APEX. Why Choose Our Oracle APEX Tutorial? Oracle Application Express (APEX) is a powerful tool for building scalable, secure enterprise applications with minimal coding. Navigating its features can be challenging, but our Oracle APEX Tutorial is designed to make learning straightforward and efficient. Key Features of Our Oracle APEX Tutorial Structured Learning Path:…