Hi guys, in this blog I am going to explain you about In-Depth Oracle Import and Export. Export In 0racle- In the context of databases, “export” refers to the process of extracting data from a database and saving it to an external file or another storage format. This process allows you to create a snapshot…

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Hi guys, in this blog I am going to explain you about R-MAN BACKUP. Archivelog : Archive log mode permits complete recovery from disk failure as well as instance failure, because all changes made to the database are permanently saved in an archived redo log. These redo log files are used with backups of your data files to…

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Hi guys, in this blog I am going to explain you about Indexes in Oracle. Indexes in Oracle- In Oracle Database 19c, as in previous versions, indexes play a crucial role in enhancing query performance by providing a faster access path to data. Here are some key aspects of indexes in Oracle 19c: B-Tree Indexes-…

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Oracle Table Partition Table partitioning in Oracle is a database feature that allows you to divide a large table into smaller, more manageable segments called partitions. Each partition is an independent unit that stores a subset of the data in the table. Partitioning is designed to improve performance, simplify data management, and enhance maintenance tasks,…

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Hi guys, in this blog I am going to explain you about Move Database file from one directory to another in Oracle In Oracle, you can move a database file from one directory to another using the ALTER DATABASE statement. Here are the general steps you can follow: Step 1 – Create new directory in Linux…

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A deadlock in Oracle occurs when two or more transactions are blocked, each waiting for the other to release a lock. This situation creates a circular dependency where neither transaction can proceed, and the database system needs to resolve the deadlock. Oracle employs a mechanism to detect and resolve deadlocks automatically. For example, Transaction A…

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Overview: Hi guys, in this blog I am going to explain you about Data Security and Encryption in Oracle 19c.This blog topic will cover the new data security and encryption features available in Oracle 19c. These features aim to provide comprehensive data protection for sensitive data while maintaining compliance with data protection regulations. Features: Some…

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Oracle Database logs Oracle Database logs can provide valuable information about the database’s health, performance, and any issues that might have occurred. Here are several ways to check Oracle Database logs: Alert Log: The Oracle Alert Log is a primary source of information about the database. It contains messages about database startup, shutdown, errors, and…

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In Oracle 19c, the optimizer plays a crucial role in optimizing SQL statements. The optimizer uses various strategies to transform the SQL statements into an optimal plan, thereby minimizing the overall cost of execution. In this blog, we will provide an overview of the optimizer in Oracle 19c. The Optimizer in Oracle 19c: The optimizer…

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In Oracle Database, the concepts of “system view” typically refer to different types of views that provide access to metadata and information about the database objects. Let’s delve into each of these concepts: System Views: System views are also known as data dictionary views or catalog views. These views are part of the Oracle data…

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Summary: in this tutorial, you will learn how to use the Oracle STARTUP command to start an Oracle Database instance. To start up a database instance, you use the STARTUP command: When the Oracle Database starts an instance, it goes through the following stages: NOMOUNT, MOUNT, and OPEN The STARTUP command allows you to control the stage of the database instance. NOMOUNT stage In the NOMOUNT stage, Oracle…

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