Category: Difference

The MySQL WHERE statement is used to define a circumstance when the data is collected from a separate list or joined to several tables. If the specified circumstance is met, then only the unique value of the table is returned. To extract the information and retrieve only the correct records, you can use the WHERE…

The WHERE and HAVING clauses are discussed in depth in this article. They’re also used to filter records in SQL queries. The difference between the WHERE and HAVING clause is the most common question posed during an interview time. The main difference between them is that the WHERE clause is used to specify a condition for…

This article explains the complete overview of the GROUP BY and ORDER BY clause. They are mainly used for organizing data obtained by SQL queries. The difference between these clauses is one of the most common places to get stuck when learning SQL. The main difference between them is that the GROUP BY clause is applicable when…

This article explains the complete overview of IN and EXISTS clause. It is one of the most common questions asked by developers who write SQL queries to filter for specific values. The main difference between them is that IN selects a list of matching values, whereas EXISTS returns the Boolean value TRUE or FALSE. Before making…

There are a lot of databases used today in the industry. Some are SQL databases, some are NoSQL databases. The conventional database is SQL database system that uses tabular relational model to represent data and their relationship. The NoSQL database is the newer one database that provides a mechanism for storage and retrieval of data…