A, ORDER BY keyword usage
ORDER BY keywords are used to sort data, the ASC default (ascending), can DESC keyword to descending.
ORDER BY keyword syntax:
SELECT * from table WHERE conditional statement 1 ORDER BY column names, column names 2 ... ASC \ DESC;
Student demo table:
Query data name = 'Bob' and press class_id descending order, for example:
SELECT * from student WHERE name = '小明' ORDER BY class_id DESC;
operation result:
