在ProductSell模型中，日期列类型为varchar，格式为d / m / Y，如何使用两者之间的数据来检索数据？

Question

I have a model ProductSell with a column date which type is varchar and format is d/m/Y .

Suppose I have two date 31/03/2019 and 01/04/2019 . I want to fetch data between these dates I am trying like

$productsale=ProductSell::whereBetween('date',[$request->from,$request- 
>to])->get();

when date is 31/03/2019 and 01/04/2019 this is not working but when date is 01/03/2019 and 31/03/2019 it working fine

Is there any solution ?

Answer 1

If at all possible, change the datatype from a varchar to a date, datetime or timestamp. The problem here is that the database doesn't understand how to order the date columns chronologically -- since it thinks it's dealing with standard text and wants to sort them alphabetically. Using datetime allows it to sort the rows by date a select the subset you want.

Fortunately you can often just change the datatype of the column and as long as the values are in a standard format (And your table isn't millions and millions of records) it will usually convert them just fine. I'm assuming you're using mysql here, but most databases should have something similar.

ALTER TABLE <tableName> MODIFY <columnName> datetime;

Of course, I'd suggest making a copy of the table and trying out the conversion on that first -- just to be safe.