使用MySQL对值0以外的整数重新排序？
要重新排序除值0以外的整数，请使用以下语法-
select *from yourTableName order by yourColumnName=0 ,yourColumnName;
让我们首先创建一个表-
mysql> create table reorderIntegerExcept0 -> ( -> value int -> );
以下是使用insert命令在表中插入记录的查询-
mysql> insert into reorderIntegerExcept0 values(90); mysql> insert into reorderIntegerExcept0 values(10); mysql> insert into reorderIntegerExcept0 values(0); mysql> insert into reorderIntegerExcept0 values(40); mysql> insert into reorderIntegerExcept0 values(0); mysql> insert into reorderIntegerExcept0 values(50); mysql> insert into reorderIntegerExcept0 values(80); mysql> insert into reorderIntegerExcept0 values(0); mysql> insert into reorderIntegerExcept0 values(300);
以下是使用select语句显示表中所有记录的查询-
mysql> select * from reorderIntegerExcept0;
这将产生以下输出-
+-------+ | value | +-------+ | 90 | | 10 | | 0 | | 40 | | 0 | | 50 | | 80 | | 0 | | 300 | +-------+ 9 rows in set (0.00 sec)
以下是对整数进行重新排序的查询，值0除外-
mysql> select * from reorderIntegerExcept0 order by value =0 ,value;
这将产生以下输出-
+-------+ | value | +-------+ | 10 | | 40 | | 50 | | 80 | | 90 | | 300 | | 0 | | 0 | | 0 | +-------+ 9 rows in set (0.00 sec)
如果您希望以降序排列除0以外的整数，请使用以下查询-
mysql> select * from reorderIntegerExcept0 order by value =0,value DESC;
这将产生以下输出-
+-------+ | value | +-------+ | 300 | | 90 | | 80 | | 50 | | 40 | | 10 | | 0 | | 0 | | 0 | +-------+ 9 rows in set (0.00 sec)