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Ignore null values in MySQL and display rest of the values
Use IS NOT NULL to find the non-null values and display them. Let us first create a table −
mysql> create table DemoTable1458 -> ( -> StudentName varchar(20), -> StudentScore int -> ); Query OK, 0 rows affected (0.52 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable1458 values('Chris Brown',56);
Query OK, 1 row affected (0.14 sec)
mysql> insert into DemoTable1458 values('David Miller',NULL);
Query OK, 1 row affected (0.17 sec)
mysql> insert into DemoTable1458 values('John Doe',78);
Query OK, 1 row affected (0.08 sec)
mysql> insert into DemoTable1458 values('Adam Smith',NULL);
Query OK, 1 row affected (0.12 sec)
Display all records from the table using select statement −
mysql> select * from DemoTable1458;
This will produce the following output −
+--------------+--------------+ | StudentName | StudentScore | +--------------+--------------+ | Chris Brown | 56 | | David Miller | NULL | | John Doe | 78 | | Adam Smith | NULL | +--------------+--------------+ 4 rows in set (0.00 sec)
Here is the query to ignore null values −
mysql> select StudentName,StudentScore from DemoTable1458 -> where StudentScore IS NOT NULL;
This will produce the following output −
+-------------+--------------+ | StudentName | StudentScore | +-------------+--------------+ | Chris Brown | 56 | | John Doe | 78 | +-------------+--------------+ 2 rows in set (0.00 sec)
Updated on: 2019-12-10T06:32:49+05:30
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