In the previous section we saw Aggregate Functions, in this section let us discuss Scalar Functions. Scalar Function: A scalar…
What are SQL Functions? SQL functions are predefined routines that can be invoked by SQL queries to perform specific operations…
What are the SQL Constraints? SQL constraints are rules that limit the types of data that can be inserted or…
The AND and OR operators are used in SQL to filter data and produce precise results based on conditions. Multiple…
What is the SQL DISTINCT keyword? The SQL DISTINCT keyword is used in conjunction with the SELECT statement to remove…
The HAVING clause in SQL Server includes one or more conditions that must be TRUE for groups of records. It's…
The SQL Group By statement is used to organize similar data into groups. The data is further organized using an…
What is the ORDER BY Clause? In the SELECT query, the ORDER BY clause can be used to sort the…
In SQL to filter data based on a specific pattern, the LIKE clause is used in the WHERE condition. It…
When retrieving data from a single table or by joining data from multiple tables, a condition is specified using the…