How can SQL be used to combine both the select and count functions?

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SQL can be used to combine the select and count functions using the following syntax:

SELECT COUNT(columnname) FROM tablename

This will return the total count of rows in the specified column of the specified table. Alternatively, you can also use the following syntax to count all rows in a table:

SELECT COUNT(*) FROM table_name

This will return the total count of all rows in the specified table.