For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> When working with SQL, it’s important to use the correct clauses to filter and manipulate our data as required. Among the numerous clauses in SQL, the HAVING clause plays a critical role especially when you’re working with aggregate functions or when […]

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> SQL or Structured Query Language is a universal language for managing and processing data stored in Relational Database Management System (RDBMS) or for stream processing in a Relational Data Stream Management System (RDSMS). Among the many clauses in SQL, a conceptually

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> The FORMAT function is a built-in string function in SQL. It helps to format a specified value into a specific format. What does it mean? In simpler terms, it’s like getting a certain output in the form and structure we desire.

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> If you’ve been working with SQL, you must have come across the terms ‘FETCH NEXT’ and ‘OFFSET FETCH’. These are powerful commands that are widely used to limit the number of rows returned from a query and controlling the starting point

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> In the world of SQL (Structured Query Language), operators play a very crucial role in retrieving data based on specific patterns and rules. One such operator is the LIKE operator. The LIKE operator is used in a WHERE clause to search

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> In SQL, LAG and LEAD are functions that provide a simple way to access data from a previous or following row without using a self-join. These are particularly important in business situations where comparisons between consecutive rows are constantly required, such

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> The ISNULL function is a very handy tool in SQL Server. It allows you to replace NULL values with a specified value. The importance of this function lies in the fact that in SQL, NULL is not a value, but a

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> In Structured Query Language (SQL), the IN operator is a logical operator that allows you to specify multiple values in a WHERE clause. Essentially, IN operator is used to reduce the need for multiple OR conditions in a SELECT, DELETE, INSERT,

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> For those seeking to deepen their understanding of SQL, an encounter with the TRY_CAST and TRY_CONVERT functions is inevitable. These two functions are vital tools within the SQL landscape and unlock a high degree of flexibility when dealing with a variety

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> SQL, or Structured Query Language, is a language designed to manage and manipulate databases. Among its many features is the TRUNCATE TABLE statement, a highly efficient but often misunderstood tool. What is the TRUNCATE TABLE statement? The TRUNCATE TABLE statement is