How can we fetch a MySQL SET column as a list of integer offset?

We can fetch the MySQL SET column values as a list of integer offset with the help of the MAKE_SET() function. To make it understand, we are creating a table named ‘set_testing’ as follows −

mysql> Create table set_testing( id INT UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT, table SET('ABC','ABD','GHF') NOT NULL);
Query OK, 0 rows affected (0.08 sec)

mysql> Insert into set_testing (table) values('1');
Query OK, 1 row affected (0.06 sec)

mysql> Insert into set_testing (table) values('2');
Query OK, 1 row affected (0.06 sec)

mysql> Insert into set_testing (table) values('3');
Query OK, 1 row affected (0.02 sec)

mysql> Insert into set_testing (table) values('4');
Query OK, 1 row affected (0.02 sec)

mysql> Select * from set_testing;
+----+---------+
| id | table   |
+----+---------+
| 1  | ABC     |
| 2  | ABD     |
| 3  | ABC,ABD |
| 4  | GHF     |
+----+---------+
4 rows in set (0.00 sec)

Now, the following query will fetch the MySQL SET column as a list of integer offset −

mysql> Select MAKE_SET(types+0,'1','2','3') as output from doctypes1;
+--------+
| output |
+--------+
| 1      |
| 2      |
| 1,2    |
| 3      |
+--------+
4 rows in set (0.00 sec)

Monica Mona

Published on 21-Feb-2018 09:17:19

• Related Questions & Answers
• How can we fetch a particular row as output from a MySQL table?
• How can we list all the columns of a MySQL view as we can list the columns of a MySQL table?
• How can we fetch one or more columns as output from a MySQL table?
• Can we use MySQL keyword as alias name for a column?
• How can we get only unique values of a column in MySQL result set?
• How can we create MySQL views with column list?
• How can we get the structure of a MySQL view as we can get the structure of a MySQL table?
• How can we get the definition of a MySQL view as we can get the definition of a MySQL table?
• How can we get the summary output of a column in MySQL result set itself?
• In MySQL, how can we represent the time value as an integer?
• Can we use “year” as a column came in a MySQL Table?
• How can we fetch a second highest salary of an employee from a MySQL table?
• How can we remove a column from MySQL table?
• Can we use semicolon as a MySQL DEMILITER?
• How can we create MySQL views without any column list?