What are the specific uses of SQL functions?

[Calum]

Hi, I would like to ask you a little question for those who do medicine, what are the specific uses of sql functions? Thank you very much for kindly answering me as soon as possible, thank you in advance.

[Devon]

SQL COUNT Function - The SQL COUNT aggregate function is used to count the number of rows in a database table.

SQL MAX Function - The SQL MAX aggregate function allows us to select the highest (maximum) value for a certain column.

SQL MIN Function - The SQL MIN aggregate function allows us to select the lowest (minimum) value for a certain column.

SQL AVG Function - The SQL AVG aggregate function selects the average value for certain table column.

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