MySQL日期范围查询

Question

I have a MySql database that uses a timestamp field to track when the entry was inserted.

Now I want to query the table for entries by a date range.

I would prefer to use MySql to extract the records instead of extracting all records then iterating and comparing dates in php.

So I have a start-date and an end-date. I have tried YYYYMMDD and YYYY-MM-DD format with no success on these two kinds of queries:

// this doesn't appear to be working
SELECT COUNT(*) FROM table_name 
WHERE DATE(timestamp_row) BETWEEN '{$date1}' AND '{$date2};

// this doesn't appear to be working either
SELECT COUNT(*) FROM table_name 
WHERE DATE(timestamp_row) >= {$date1}
AND DATE(timestamp_row) <= {$date2};

It appears that the Mysql DATE() function turns the timestamp into this format: YYYY-MM-DD

Is there a way to do this.

Answer 1

You are doing the B'Day dates of users and thus hope this would be do the trick of formatting and selection of date

select id from my_table
 where
 timestamp < date_format(date_add(CURRENT_TIMESTAMP(), interval 1 day),
             '%Y%m%d000000' ) AND timestamp >=  date_format(CURRENT_TIMESTAMP(),
             '%Y%m%d000000')

Answer 2

Isearch the data by id but the date is wrong...This show 1970/01/01

                             $book_year= Date("Y", strtotime($year));
            $book_month= Date("m", strtotime($month));
            $book_day=Date("d", strtotime($day));
            $book_date=$year."/". $month."/". $day;
                    $book_date= Date("Y-m-d", strtotime($book_date));

Answer 3

Which field types of these are you using? 1. DATETIME, 2. DATE, 3. TIMESTAMP

Since SELECT COUNT(*) FROM table_name WHERE DATE(timestamp_row) BETWEEN '{$date1}' AND '{$date2}; looks ok, if you use specific values instead of '{$date1}' AND '{$date2}; maybe there is something wrong with the way time is formatted in your rows?

You can automatically convert an invalid date to the valid equivalent like this:

SELECT '2008-02-31' + INTERVAL 0 DAY;

2008-03-02

Answer 4

You can try this

SELECT COUNT(*) FROM table_name WHERE timestamp_row BETWEEN '2011-01-01 00:00:00' AND '2011-01-31 23:59:59';

There's no need to use MySQL's DATE function in your original query.