Question

我使用php和Mysql，当用户在date_field中选择月份和年份时，我需要运行特定的查询。此查询返回由用户选择的月/年创建的所有记录，并且我不希望在select中的子句中关联日期。由于我只需要从月/年选择的记录，有什么方法可以在仅选择月/年内定义？

这是我的Mysql语句，其中包含用户选择的变量有两个与内部联接相关的表格，因此我可以“抓住”＃39;记录日期：

$quer_mesano = "Select b.name AS Canal                                  
                                from canal_canalvenda b
                                inner join meta_meta c On  c.canal_canalvenda_id_c = b.id
                                And c.deleted = 0
                                where c.periodo = '$month_year' //Here is the date value I just need to put in month/year
                                And b.deleted = 0
                                Group by Canal order by 1";

任何人都可以帮助我吗？

Answer 1

这很容易。使用DATE_FORMAT。只需像这样更改Sql语句：

$quer_mesano = "Select b.name AS Canal                                  
                            from canal_canalvenda b
                            inner join meta_meta c On  c.canal_canalvenda_id_c = b.id
                            And c.deleted = 0
                            where DATE_FORMAT( c.periodo, '%Y-%m' ) = '$month_year' //Just put DATE_FORMAT
                            And b.deleted = 0
                            Group by Canal order by 1";

Answer 2

DATE_FORMAT（）您可以使用如下所示

$quer_mesano = "Select b.name AS Canal                                  
                            from canal_canalvenda b
                            inner join meta_meta c On  c.canal_canalvenda_id_c = b.id
                            And c.deleted = 0
                            where DATE_FORMAT( c.periodo, '%Y/%m' ) = '$month_year'
                            And b.deleted = 0
                            Group by Canal order by 1";

一个月你有不同的类型 - ％M月份名称％m月，数字（00-12）一年 - ％Y年，四位数％y年，两位数

Answer 3

我将月份年份转换为YYYY-MM格式，可以将其与数据库进行比较。

$quer_mesano = "Select b.name AS Canal                                  
                from canal_canalvenda b
                inner join meta_meta c On  c.canal_canalvenda_id_c = b.id
                And c.deleted = 0
                where DATE_FORMAT( c.periodo, '%Y-%m' ) = '" . date("Y-m", strtotime($month_year)) . "' //Here is the date value I just need to put in month/year
                And b.deleted = 0
                Group by Canal order by 1";

如何在Query Statement Mysql中格式化日期？

3 个答案: