SQL AVG() function returns the average of values of a numeric column in a table. AVG() Syntax SELECT AVG(column_name) FROM table_name WHERE condition; SQL AVG()… [Read More]

SQL SUM() function returns the total sum of values of a numeric column in a table. SUM() function Syntax SELECT SUM(column_name) FROM table_name WHERE condition;… [Read More]

SQL MIN() & MAX() functions are used to find the lowest value and largest value of a column respectively. MIN(column_name): It returns the lowest value… [Read More]

SQL DELETE statement is used to permanently delete existing records (rows) from the table. This statement can be used to delete one or more records… [Read More]

The UPDATE statement in SQL is used to update records in the table. We can modify one or multiple records (rows) in table using UPDATE… [Read More]

In SQL Where clause tutorial, we learned how to use comparison operators such as =, <, > etc in where clause for conditions. However when… [Read More]

SQL SELECT AS is used to assign temporary names to table or column name or both. This is known as creating Alias in SQL. In… [Read More]

Sometimes there is a need to fetch random record from the table. For example – You have a list of quotes stored in a table… [Read More]

In the previous tutorial, we learned the SQL INSERT INTO statement. In this guide, we will see a useful variation SQL INSERT INTO SELECT statement… [Read More]