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In today’s article, we will be learning the GROUP BY command, which allows us to perform operations by grouping columns. GROUP BY also has functions …

In today’s article, we will cover the features and important parameters of Parameter Files in Oracle. When opening the database, the parameters in this file …

In today’s article, we will be installing Oracle Weblogic server 14.1.1.0 on Java JDK 1.8 version on Linux 7 operating system. Weblogic is the world’s …

In today’s article, we will learn how to sort data with the Order By command in PostgreSQL. With the Order By command, this order can …

In today’s article, we will explain what a password file is, how to create it and how to use it. For non-SYS users, a password …

In today’s article, I will explain how to upgrade our Oracle Database 19.3 database built on Grid Infrastructure. The database we will upgrade is running …

In today’s article, we will be explaining what NOT NULL is and how to use it, which is the opposite of IS NULL in PostgreSQL. …

In today’s article, we will be learning how to Control File Location and size information in Oracle. The information kept in the control file is …

In today’s article, we will be explaining the introduction and features of Oracle Database 21C. Oracle Database 21C can be used in Cloud environment such …

In today’s article, we will explain what Is Null and how to use it in PostgreSQL. Null is not a value, so NULL should not …