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Display the result with not null value first and then with null value in MySQL
Let us first create a table −
mysql> create table DemoTable1357 -> ( -> StudentName varchar(40), -> StudentCountryName varchar(30) -> ); Query OK, 0 rows affected (0.49 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable1357 values('Chris','US');
Query OK, 1 row affected (0.17 sec)
mysql> insert into DemoTable1357 values('David',NULL);
Query OK, 1 row affected (0.14 sec)
mysql> insert into DemoTable1357 values('David','AUS');
Query OK, 1 row affected (0.14 sec)
mysql> insert into DemoTable1357 values('Carol',NULL);
Query OK, 1 row affected (0.16 sec)
mysql> insert into DemoTable1357 values('Mike','UK');
Query OK, 1 row affected (0.15 sec)Display all records from the table using select statement −
mysql> select * from DemoTable1357;
This will produce the following output −
+-------------+--------------------+ | StudentName | StudentCountryName | +-------------+--------------------+ | Chris | US | | David | NULL | | David | AUS | | Carol | NULL | | Mike | UK | +-------------+--------------------+ 5 rows in set (0.00 sec)
Following is the query to display the result with not null value first and then with null value −
mysql> select * from DemoTable1357 -> order by (StudentCountryName IS NULL),StudentName;
This will produce the following output −
+-------------+--------------------+ | StudentName | StudentCountryName | +-------------+--------------------+ | Chris | US | | David | AUS | | Mike | UK | | Carol | NULL | | David | NULL | +-------------+--------------------+ 5 rows in set (0.00 sec)
Updated on: 05-Nov-2019
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