What is the method to compare datetime in MySQL?

1 year ago
Liam
1 minute

In MySQL, you can use comparison operators (<, >, <=, >=, =) to compare the sizes of two datetime data. The result of the comparison will return a boolean value indicating the truth of the comparison result.

Here are some examples:

  1. Compare two columns of type datetime.
SELECT * FROM table WHERE datetime_column1 < datetime_column2;
  1. Compare a column of datetime type with a specific datetime value.
SELECT * FROM table WHERE datetime_column < '2022-01-01 00:00:00';
  1. Compare columns of datetime type with the current date and time.
SELECT * FROM table WHERE datetime_column < NOW();

注意：在比较日期和时间数据时，需保证两个值的格式一致，否则可能会导致比较结果不准确。

bannerAds