Category: Oracle

In Oracle Database, the Resource Manager is a feature that allows you to manage and allocate resources among different users and applications. It enables you to control the number of resources (CPU, memory, and parallel execution servers) consumed by database sessions and helps in preventing runaway queries or resource-intensive operations from adversely impacting the overall…

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In the field of database management, maintaining data integrity and controlling concurrent access is paramount. Oracle Database, a robust relational database management system, employs a sophisticated locking mechanism to achieve these objectives. In this comprehensive guide, we delve into the intricacies of the Oracle Database Locking Mechanism, exploring key terms and concepts integral to its functionality.…

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A materialized view, or snapshot as they were previously known, is a table segment whose contents are periodically refreshed based on a query, either against a local or remote table. Basic Syntax-  The full syntax description for the CREATE MATERIALIZED VIEW command is available in the documentation. Here we will only concern ourselves with the basics.  –Normal …

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An important part of an Oracle database is its data dictionary, which is a read-only set of tables that provides administrative metadata about the database. A data dictionary contains information such as the following: ·         The definitions of every schema object  in the database, including default values for columns and integrity constraint information ·         The amount of space allocated…

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The Automatic Diagnostic Repository (ADR) is a system-wide tracing and logging central repository for database diagnostic data. It includes the following items:  Background trace files :  Background trace files store information from database background processes. When a process detects an internal error, the process dumps information about the error to its trace file. Some of the information written to a…

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Database corruption Database corruption in Oracle can occur due to various reasons, such as hardware failures, software bugs, or issues during database operations. It’s crucial to identify and address corruption promptly to ensure data integrity. Here are some steps you can take to deal with database corruption in Oracle: Physical corruption: This happens generally due to…

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In the context of Oracle databases, “cloning” typically refers to the process of creating an exact replica of a database, usually for purposes such as testing, development, or disaster recovery. There are several methods for cloning an Oracle database, each with its own advantages and use cases. Here’s an overview of some common cloning methods…

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