执行MySQL ORDER BY关键字匹配吗？
为此，让我们创建一个表，插入一些值并使用ORDERBYCASE。让我们首先创建一个表-
mysql> create table DemoTable602 (GameName text);
使用插入命令在表中插入一些记录-
mysql> insert into DemoTable602 values('Candy cash game');
mysql> insert into DemoTable602 values('Pubg');
mysql> insert into DemoTable602 values('cash Candy game');
mysql> insert into DemoTable602 values('subway');使用select语句显示表中的所有记录-
mysql> select *from DemoTable602;
这将产生以下输出-
+-----------------+ | GameName | +-----------------+ | Candy cash game | | Pubg | | cash Candy game | | subway | +-----------------+ 4 rows in set (0.00 sec)
以下是执行MySQLORDERBY关键字匹配的查询-
mysql> select *from DemoTable602
order by
CASE WHEN instr(GameName, 'Candy') = 0 then 1 else 0 end,
instr(GameName, 'cash') desc;这将产生以下输出-
+-----------------+ | GameName | +-----------------+ | Candy cash game | | cash Candy game | | Pubg | | subway | +-----------------+ 4 rows in set (0.00 sec)