Clota Blog

Category: Oracle L1

  • Data Security and Encryption in Oracle 19c

    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…

  • Oracle Database logs

    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…

  • Overview of the Optimizer in oracle 19c and Types of Optimizer

    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…

  • Data Integrity

    Introduction to Data Integrity It is important that data maintain data integrity, which is adherence to business rules determined by the database administrator or application developer. Business rules specify conditions and relationships that must always be true or must always be false. For example, each company defines its own policies about salaries, employee numbers, inventory tracking,…

  • System Views in Oracle

    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…

  • Startup In Oracle Database

    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…

  • Top 10 performance Counters in Oracle Database19c

    Monitoring performance counters is critical for optimizing Oracle Database performance. Here are ten significant performance counters (also called as performance metrics or statistics) to consider while analyzing an Oracle 19c database’s performance: Buffer Cache Hit Ratio- Indicates the efficiency of the buffer cache by measuring the ratio of cache hits to total requests. Query- SELECT…

  • New Features of Oracle 19c-

    Oracle Database 19c refers to the 19th version of the Oracle Database, which is a relational database management system (RDBMS) developed and marketed by Oracle Corporation. The “c” in 19c stands for “Cloud,” indicating Oracle’s commitment to cloud computing and cloud-based solutions. Oracle 19c is the successor to Oracle Database 18c and comes with several…

  • Resource Manager and Task Schedular-

    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…