Author Archives: user

SQL – MIN() – MAX() function Table of content The MIN() and MAX() functions in SQL are aggregate functions. They are used to compare values in a set and, retrieve the maximum and minimum values respectively. An aggregate function is a mathematical computation that takes a range of values as input and yields a single […]

SQL – Wildcards SQL Wildcards SQL Wildcards are special characters used as substitutes for one or more characters in a string. They are used with the LIKE operator in SQL, to search for specific patterns in character strings or compare various strings. The LIKE operator in SQL is case-sensitive, so it will only match strings […]

SQL – Comments Table of content A comment is a piece of text that is used in programming languages to provide additional information. These comments are ignored by the compiler and do not affect the program”s functionality. They are not visible in the output after the execution of code. Their purpose is to make the […]