oracle

English

Oracle Database Segment Extension — Error Handling and Best Practices

In Oracle Database, as data grows, segments can run short of space, which may trigger errors and degrade performance. Th...
English

A Guide to Mastering Oracle Environment Variable Settings (.bash_profile Edition)

When working with Oracle Database, configuring environment variables is essential. By leveraging .bash_profile, you can ...
English

About Oracle Database Environment Variables(unix)

To operate Oracle Database correctly, configuring environment variables is essential. This article covers everything fro...
English

What Are Deferred Segments? Usage and Caveats

In Oracle Database, when you create a table, a segment (the physical storage area for data) is usually allocated immedia...
English

Explaining Segment Management in Oracle Database

To improve the operational efficiency of a database, you need to optimize storage management. At the center of that is s...
Performance_en

Oracle SQL Tuning Quick Guide: Execution Plans, Statistics, and Tracing [19c]

This article is a rewritten, more practical, and reproducible version of the original “Oracle SQL Tuning Basics.” While ...
English

Row Migration & Row Chaining — Understand Causes, Detection, and Remedies in One Go (Oracle)

To solve database performance issues, you must understand row migration and row chaining. This article digs into both co...
English

Segment Space Management Methods and PCTFREE Explained

Oracle Database administrators must correctly understand segment space management and the concept of PCTFREE to manage d...
English

Oracle Data Block Row Storage: Mechanism and Verification Steps

Introduction (Summary)In oracle, row storage inside a data block consists of “block header / directory / row data / free...
English

How to Use Oracle Managed Files (OMF): Complete Guide to Configuration, Procedures, and Operations

Introduction (Summary)Oracle Managed Files (OMF) is a mechanism that auto-names and auto-places data files, temp files, ...