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Replace the empty values from a MySQL table with a specific value
Let us first create a table −
mysql> create table DemoTable837(Name varchar(100)); Query OK, 0 rows affected (0.53 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable837 values('Chris');
Query OK, 1 row affected (0.13 sec)
mysql> insert into DemoTable837 values('');
Query OK, 1 row affected (0.23 sec)
mysql> insert into DemoTable837 values('Robert');
Query OK, 1 row affected (0.08 sec)
mysql> insert into DemoTable837 values('');
Query OK, 1 row affected (0.09 sec)
mysql> insert into DemoTable837 values('David');
Query OK, 1 row affected (1.13 sec)Display all records from the table using select statement −
mysql> select *from DemoTable837;
This will produce the following output −
+--------+ | Name | +--------+ | Chris | | | | Robert | | | | David | +--------+ 5 rows in set (0.00 sec)
Following is the query to replace the empty value with a specific value −
mysql> select if(Name='', 'Adam',Name) from DemoTable837;
This will produce the following output −
+--------------------------+ | if(Name='', 'Adam',Name) | +--------------------------+ | Chris | | Adam | | Robert | | Adam | | David | +--------------------------+ 5 rows in set (0.00 sec)
Updated on: 03-Sep-2019
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