按日期获取查询 - 错误：运算符不存在：没有时区的时间戳~~未知

Question

I am trying to get a sum of figures by today's date. My approach is to use LocalDateTime formatted as below

yyyy-MM-dd HH:mm:ss

And The date I am picking from the server is of this format

2020-03-26 12:36:14.48947

Since the date variation keeps changing, my interest is to deal with this 2020-03-26 as both will exist from the formatted today's date and the date from the server

Here is the query I am using

"... AND p.regDate LIKE :todayDate..." 

Here is the DateTimeFormertter

DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
LocalDateTime today = null;
today = LocalDateTime.now();
System.out.println("here is today " + today);

With the approach above, I am getting an error. Please hw can I get todays date from the query

Answer 1

First of all, you need to a LocalDate not LocalDateTime to your query:

LocalDate today = LocalDate.now(); // current date "2020-03-26"
// or a custom LocalDate
LocalDate today = LocalDate.of(2020, Month.MARCH, 26);

And then, to get the date part from datetime in your databse, you can use :

"... AND DATE(p.regDate) = :todayDate..." 

Where: DATE(p.regDate) extract only the date part, the compare with = not LIKE