Syntax error MySQL query to ORDER BY records on the basis of modulus result

MySQL query to ORDER BY records on the basis of modulus result

For this, use ORDER BY with a modulus operator. Let us first create a table −

mysql> create table DemoTable
(
   StudentId int,
   StudentName varchar(100)
);
Query OK, 0 rows affected (1.88 sec)

Insert some records in the table using insert command −

mysql> insert into DemoTable values(100,'Chris');
Query OK, 1 row affected (0.41 sec)
mysql> insert into DemoTable values(101,'Robert');
Query OK, 1 row affected (0.30 sec)
mysql> insert into DemoTable values(102,'David');
Query OK, 1 row affected (0.94 sec)
mysql> insert into DemoTable values(103,'Mike');
Query OK, 1 row affected (0.23 sec)

Display all records from the table using select statement −

mysql> select *from DemoTable;

This will produce the following output −

+-----------+-------------+
| StudentId | StudentName |
+-----------+-------------+
|       100 | Chris       |
|       101 | Robert      |
|       102 | David       |
|       103 | Mike        |
+-----------+-------------+
4 rows in set (0.00 sec)

Here is the query to order by with modulus −

mysql> select StudentId,StudentName,StudentId % 2,StudentId % 3 from DemoTable order by StudentId % 2,StudentId % 3;

This will produce the following output −

+-----------+-------------+---------------+---------------+
| StudentId | StudentName | StudentId % 2 | StudentId % 3 |
+-----------+-------------+---------------+---------------+
|       102 | David       |             0 |             0 |
|       100 | Chris       |             0 |             1 |
|       103 | Mike        |             1 |             1 |
|       101 | Robert      |             1 |             2 |
+-----------+-------------+---------------+---------------+
4 rows in set (0.00 sec)
Updated on: 2019-09-30T07:08:44+05:30

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