Anas Darkal

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Oracle Database 23ai: Fetch Top-N Rows Per Group Queries

Overview: Oracle 23ai introduces partition by clause in fetch first clause to get top-N rows per group. A query’s syntax SELECT …….. FROM …….. ORDER BY , FETCH FIRST , ROWS ONLY..

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Oracle 23ai: Enumeration Domains – List of Values in the Database

Overview: Oracle Database 23ai introduces a new way to create lists of values: enumeration (enum) domains Benefits: Create lists of name-value pairs in the database Query the enum..

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Oracle 23ai: Quick Overview

Oracle Database 23ai Oracle Database 23ai is the next long-term support release of Oracle Database It brings AI to your data with the addition of AI Vector search to Oracle’s..

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Oracle 23ai: Bigfile Tablespace Shrink

Overview: If you try to resize/shrink a datafile before Oracle Database 23ai, you’ll get “ORA-03297: file contains used data beyond requested RESIZE value” because there are..

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Oracle 23ai: Managing Flashback Database Logs Outside the Fast Recovery Area

Overview: In previous Database releases, you could store flashback database logs only in the fast recovery area Oracle 23ai Database introduces the option to store flashback..

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Oracle 23ai: Read-Only Users and Sessions

Overview: Oracle 23ai Database introduces a new feature to control whether a user or session is enabled for read-write operations, irrespective of the privileges of the user that..

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Oracle 23ai: Hybrid Read-Only Mode for Pluggable Databases

Overview: Oracle 23ai database introduces a new feature to open Pluggable database in a new mode called hybrid read-only Hybrid read-only mode enables a PDB to operate as either..

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MySQL: Updating the Configuration of a MySQL DB System on OCI

Overview: A MySQL configuration is a collection of variables that define the operation of a MySQL DB system. It is analogous to the my.ini or my.cnf files that you use in..

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MySQL: Creating a MySQL Configuration on OCI

Overview: A MySQL configuration is a collection of variables that define the operation of a MySQL DB system. It is analogous to the my.ini or my.cnf files that you use in..

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Oracle 23ai: INTERVAL Data Type Aggregations

Overview: Oracle 23ai introduces the use of SUM and AVG functions with INTERVAL datatype This enhancement makes it easier to calculate totals and averages over INTERVAL values In..

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