All posts by Tuna Peyo

About this course This course teaches you how to install, use, and manage Linux. Linux is an open source computer operating …

The SQL SUM() function is used to return the total of all values in the specific table column. The syntax is: …

The MIN() function returns the lowest value of the selected column. The syntax: SELECT MIN (column1) FROM table; Let’s say …

The SQL MAX() function returns the highest value of the selected column. The syntax: SELECT MAX(column1) FROM table; Here is …

The SQL COUNT() function can be used in two ways: COUNT(*) – counts the number of rows in a table …

The AVG() function is used to return the average value of a specific numeric column in the table. The syntax: …