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Can we return query results in same order as the values in MySQL `IN(…)` statement?
Yes, you can achieve this with ORDER BY FIELD() from MySQL. Let us first create a table −
mysql> create table DemoTable -> ( -> Number int -> ); Query OK, 0 rows affected (0.54 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable values(19); Query OK, 1 row affected (0.20 sec) mysql> insert into DemoTable values(30); Query OK, 1 row affected (0.20 sec) mysql> insert into DemoTable values(34); Query OK, 1 row affected (0.32 sec) mysql> insert into DemoTable values(28); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable values(25); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable values(29); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable values(24); Query OK, 1 row affected (0.14 sec)
Display all records from the table using select statement −
mysql> select *from DemoTable;
This will produce the following output −
+--------+ | Number | +--------+ | 19 | | 30 | | 34 | | 28 | | 25 | | 29 | | 24 | +--------+ 7 rows in set (0.00 sec)
Following is the query to return result in the same order as the values set −
mysql> select *from DemoTable -> ORDER BY FIELD(Number, 30,19,34,25,28,29,24) ;
This will produce the following output displaying the results in the same order −
+--------+ | Number | +--------+ | 30 | | 19 | | 34 | | 25 | | 28 | | 29 | | 24 | +--------+ 7 rows in set (0.00 sec)
Updated on: 30-Jul-2019
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