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Sort by character length in MySQL
To sort by character length in MySQL use the ORDER BY LENGTH(). Let us first create a table:
mysql> create table orderingAADemo -> ( -> Value varchar(100) -> ); Query OK, 0 rows affected (1.30 sec)
Following is the query to insert some records in the table using insert command:
mysql> insert into orderingAADemo values('A');
Query OK, 1 row affected (0.12 sec)
mysql> insert into orderingAADemo values('B');
Query OK, 1 row affected (0.13 sec)
mysql> insert into orderingAADemo values('AA');
Query OK, 1 row affected (0.20 sec)
mysql> insert into orderingAADemo values('C');
Query OK, 1 row affected (0.12 sec)
mysql> insert into orderingAADemo values('CCC');
Query OK, 1 row affected (0.22 sec)Following is the query to display records from the table using select command:
mysql> select *from orderingAADemo;
This will produce the following output
+-------+ | Value | +-------+ | A | | B | | AA | | C | | CCC | +-------+ 5 rows in set (0.00 sec)
Following is the query to sort by character length in descending order:
mysql> select *from orderingAADemo -> order by length(Value) DESC, Value;
This will produce the following output
+-------+ | Value | +-------+ | CCC | | AA | | A | | B | | C | +-------+ 5 rows in set (0.00 sec)
Updated on: 30-Jul-2019
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