MySQL Query a List of Values?

MySQLMySQLi Database

To query a list of values, you can use IN operator. The syntax is as follows −

SELECT * FROM yourTableName WHERE yourColumnName IN(Value1,Value2,...N) ORDER BY FIELD(yourColumnName,Value1,Value2,...N);

To understand the above syntax, let us create a table. The query to create a table is as follows −

mysql> create table ListOfValues
   -> (
   -> Id int NOT NULL AUTO_INCREMENT,
   -> Name varchar(30),
   -> Age int,
   -> PRIMARY KEY(Id)
   -> );
Query OK, 0 rows affected (0.72 sec)

Insert some records in the table using insert command. The query is as follows −

mysql> insert into ListOfValues(Name,Age) values('Carol',23);
Query OK, 1 row affected (0.14 sec)

mysql> insert into ListOfValues(Name,Age) values('Bob',25);
Query OK, 1 row affected (0.17 sec)

mysql> insert into ListOfValues(Name,Age) values('Sam',26);
Query OK, 1 row affected (0.16 sec)

mysql> insert into ListOfValues(Name,Age) values('John',20);
Query OK, 1 row affected (0.37 sec)

mysql> insert into ListOfValues(Name,Age) values('Mike',28);
Query OK, 1 row affected (0.13 sec)

mysql> insert into ListOfValues(Name,Age) values('David',27);
Query OK, 1 row affected (0.21 sec)

mysql> insert into ListOfValues(Name,Age) values('Larry',21);
Query OK, 1 row affected (0.20 sec)

Now you can display all records from the table using a select statement. The query is as follows −

mysql> select *from ListOfValues;

The following is the output −

+----+-------+------+
| Id | Name  | Age  |
+----+-------+------+
|  1 | Carol |   23 |
|  2 | Bob   |   25 |
|  3 | Sam   |   26 |
|  4 | John  |   20 |
|  5 | Mike  |   28 |
|  6 | David |   27 |
|  7 | Larry |   21 |
+----+-------+------+
7 rows in set (0.00 sec)

Here is the query to get the list of values on the basis of the Age column. The query is as follows −

mysql> select *from ListOfValues where Age IN(20,21,23,25,26,27,28)
-> order by field(Age,20,21,23,25,26,27,28);

The following is the output.

+----+-------+------+
| Id | Name  | Age  |
+----+-------+------+
|  4 | John  |   20 |
|  7 | Larry |   21 |
|  1 | Carol |   23 |
|  2 | Bob   |   25 |
|  3 | Sam   |   26 |
|  6 | David |   27 |
|  5 | Mike  |   28 |
+----+-------+------+
7 rows in set (0.06 sec)
raja
Published on 01-Feb-2019 06:21:24
Advertisements