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How to get MySQL query result in same order as given by IN clause?
For this, you can use IN() along with ORDER BY FIELD(). Let us first create a table −
mysql> create table DemoTable ( Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, FirstName varchar(100) ); Query OK, 0 rows affected (0.64 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable(FirstName) values('Chris');
Query OK, 1 row affected (0.19 sec)
mysql> insert into DemoTable(FirstName) values('Robert');
Query OK, 1 row affected (0.08 sec)
mysql> insert into DemoTable(FirstName) values('Mike');
Query OK, 1 row affected (0.13 sec)
mysql> insert into DemoTable(FirstName) values('Sam');
Query OK, 1 row affected (0.12 sec)
mysql> insert into DemoTable(FirstName) values('Carol');
Query OK, 1 row affected (0.10 sec)
mysql> insert into DemoTable(FirstName) values('David');
Query OK, 1 row affected (0.42 sec)Display all records from the table using select statement −
mysql> select *from DemoTable;
This will produce the following output −
+----+-----------+ | Id | FirstName | +----+-----------+ | 1 | Chris | | 2 | Robert | | 3 | Mike | | 4 | Sam | | 5 | Carol | | 6 | David | +----+-----------+ 6 rows in set (0.00 sec)
The following is how to get query results in the same order as given by the IN clause.
mysql> select FirstName from DemoTable where Id IN(4,5,6) order by field(Id,4,5,6);
This will produce the following output −
+-----------+ | FirstName | +-----------+ | Sam | | Carol | | David | +-----------+ 3 rows in set (0.00 sec)
Updated on: 26-Sep-2019
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