MySQL query to order rows with value greater than zero?
Let us first create a table. Following is the query −
mysql> create table gettingAndOrderingRowsDemo
-> (
-> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,
-> Value int
-> );
Query OK, 0 rows affected (1.35 sec)
Following is the query to insert some records in the table using insert command −
mysql> insert into gettingAndOrderingRowsDemo(Value) values(10);
Query OK, 1 row affected (0.33 sec)
mysql> insert into gettingAndOrderingRowsDemo(Value) values(13);
Query OK, 1 row affected (0.32 sec)
mysql> insert into gettingAndOrderingRowsDemo(Value) values(0);
Query OK, 1 row affected (0.17 sec)
mysql> insert into gettingAndOrderingRowsDemo(Value) values(20);
Query OK, 1 row affected (0.26 sec)
mysql> insert into gettingAndOrderingRowsDemo(Value) values(30);
Query OK, 1 row affected (0.50 sec)
mysql> insert into gettingAndOrderingRowsDemo(Value) values(60);
Query OK, 1 row affected (0.24 sec)
mysql> insert into gettingAndOrderingRowsDemo(Value) values(0);
Query OK, 1 row affected (0.28 sec)
mysql> insert into gettingAndOrderingRowsDemo(Value) values(45);
Query OK, 1 row affected (0.15 sec)
mysql> insert into gettingAndOrderingRowsDemo(Value) values(0);
Query OK, 1 row affected (0.69 sec)
Following is the query to display all records from the table using select statement −
mysql> select * from gettingAndOrderingRowsDemo;
This will produce the following output −
+----+-------+
| Id | Value |
+----+-------+
| 1 | 10 |
| 2 | 13 |
| 3 | 0 |
| 4 | 20 |
| 5 | 30 |
| 6 | 60 |
| 7 | 0 |
| 8 | 45 |
| 9 | 0 |
+----+-------+
9 rows in set (0.00 sec)
Following is the query to order with a value greater than zero −
mysql> select * from gettingAndOrderingRowsDemo
-> order by Value=0,Value;
This will produce the following output −
+----+-------+
| Id | Value |
+----+-------+
| 1 | 10 |
| 2 | 13 |
| 4 | 20 |
| 5 | 30 |
| 8 | 45 |
| 6 | 60 |
| 3 | 0 |
| 7 | 0 |
| 9 | 0 |
+----+-------+
9 rows in set (0.00 sec)
Published on 15-Apr-2019 13:42:29
