Database Tutorials MSSQL, Oracle, PostgreSQL, MySQL, MariaDB, DB2, Sybase, Teradata, Big Data, NOSQL, MongoDB, Couchbase, Cassandra, Windows, Linux

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 …

In today’s article, we will be explaining Add Member to Redo Log Group and Increasing the Size of a Redo Log Group. A new member …

In this topic we will see how can we change our database name using Oracle NID tool. Use the syntax bellow to change the Dtabase …

In today’s article, I will be explaining What is PostgreSQL Coalesce and how to use it. The Coalesce function is used to replace a NULL …

In today’s article, we will be explaining Redo Log Switching, Redo Log Switch Frequency and Determining Redo Log Switch Duration. Redo Log Switching [crayon-6819fbb4a317f386607062/] Redo …

In today’s article, we will be learning the first part of Single Instance 19C Database Installation with Oracle Grid Infrastructure. Oracle Database can be installed …

In today’s article, we will be explaining what is nullif in PostgreSQL and how to use it. The nullif function returns NULL if the two …