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How to check if any value is Null in a MySQL table single row?
For this, you can use ISNULL in MySQL.
Let us create a table −
Example
mysql> create table demo86 -> ( -> value1 varchar(20) -> , -> value2 varchar(20) -> ); Query OK, 0 rows affected (2.77
Insert some records into the table with the help of insert command −
Example
mysql> insert into demo86 values(null,null);
Query OK, 1 row affected (0.34
mysql> insert into demo86 values(null,'John');
Query OK, 1 row affected (0.16
mysql> insert into demo86 values('David','Mike');
Query OK, 1 row affected (0.17
mysql> insert into demo86 values('Sam',null);
Query OK, 1 row affected (0.15Display records from the table using select statement −
Example
mysql> select *from demo86;
This will produce the following output −
Output
+--------+--------+| value1 | value2 |
+--------+--------+| NULL | NULL |
| NULL | John || David | Mike |
| Sam | NULL |+--------+--------+
4 rows in set (0.00 sec)
Following is the query to check if any value is Null in a single row −
Example
mysql> select *from demo86 -> where value1 is null or value2 is null;
This will produce the following output −
Output
+--------+--------+| value1 | value2 |
+--------+--------+| NULL | NULL |
| NULL | John || Sam | NULL |
+--------+--------+3 rows in set (0.00 sec)
Updated on: 11-Dec-2020
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