This tutorial introduces the basic concepts of null handling for string and numeric columns in Apache Druid. The tutorial focuses on filters using the logical NOT operation on columns with NULL values ...

Spread the loveNULL in SQL is a powerful concept, representing the absence of a value. It’s used when data is unavailable or unknown, but its usage requires careful consideration. The first step is ...

In this exercise, we will install Azure SQL Edge module on your Edge device (Ubuntu), and configure SQL Edge instance to consume the streaming events generated by above Data Generator Module ...

Free Tutorial : Oracle PL SQL Tutorial - font color000000What is PLSQLPLSQL stands for Procedural Language extension of SQLPLSQL is a combination of SQL along ...

Free Tutorial : Performing a Unit Test of Your PL/SQL in Oracle SQL - h2Purposeh2This tutorial shows you how to perform a unit test of your PLSQL code in Oracle SQL Developer 30h2Time to ...