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Display custom text in a new column on the basis of null values in MySQL?
Let us first create a table −
mysql> create table DemoTable1953 ( StudentName varchar(20) ); Query OK, 0 rows affected (0.00 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable1953 values('Chris');
Query OK, 1 row affected (0.00 sec)
mysql> insert into DemoTable1953 values(NULL);
Query OK, 1 row affected (0.00 sec)
mysql> insert into DemoTable1953 values('David');
Query OK, 1 row affected (0.00 sec)
mysql> insert into DemoTable1953 values(NULL);
Query OK, 1 row affected (0.00 sec)Display all records from the table using select statement −
mysql> select * from DemoTable1953;
This will produce the following output −
+-------------+ | StudentName | +-------------+ | Chris | | NULL | | David | | NULL | +-------------+ 4 rows in set (0.00 sec)
Following is the query to display custom text in a new column on the basis of null values −
mysql> select StudentName,IF(StudentName IS NULL,'Student Name Is Not Found','Student Name Found') as Name from DemoTable1953;
This will produce the following output −
+-------------+---------------------------+ | StudentName | Name | +-------------+---------------------------+ | Chris | Student Name Found | | NULL | Student Name Is Not Found | | David | Student Name Found | | NULL | Student Name Is Not Found | +-------------+---------------------------+ 4 rows in set (0.00 sec)
Updated on: 31-Dec-2019
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