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MySQL order by 0 first and then display the record in descending order?
In order to order by 0 first and then largest, you can use the below syntax −
select *from yourTableName order by yourColumnName=0 DESC,yourColumnName DESC;
Let us first create a table −
mysql> create table DemoTable ( Value int ); Query OK, 0 rows affected (0.65 sec)
Insert records in the table using insert command −
mysql> insert into DemoTable values(90); Query OK, 1 row affected (0.23 sec) mysql> insert into DemoTable values(0); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable values(20); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable values(0); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable values(10); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable values(70); Query OK, 1 row affected (0.34 sec) mysql> insert into DemoTable values(0); Query OK, 1 row affected (0.15 sec)
Display records from the table using select command −
mysql> select *from DemoTable;
This will produce the following output −
+-------+ | Value | +-------+ | 90 | | 0 | | 20 | | 0 | | 10 | | 70 | | 0 | +-------+ 7 rows in set (0.00 sec)
Here is the query to order by 0 then display the largest element in DESC order −
mysql> select *from DemoTable order by Value=0 DESC,Value DESC;
This will produce the following output −
+-------+ | Value | +-------+ | 0 | | 0 | | 0 | | 90 | | 70 | | 20 | | 10 | +-------+ 7 rows in set (0.00 sec)
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