Select current months records mysql from timestamp column

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一整个雨季
一整个雨季 2020-12-05 15:31

I have a mysql DB that has a TIMESTAMP field titled date. How can I select all fields where the month is the current month?

Thanks in advance!

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  •  无人及你
    2020-12-05 16:21

    UPDATE

    A much better index-friendly way to query your data for a range of dates

    SELECT id, FROM_UNIXTIME(timestampfield) timestamp 
      FROM table1
     WHERE timestampfield >= UNIX_TIMESTAMP(LAST_DAY(CURDATE()) + INTERVAL 1 DAY - INTERVAL 1 MONTH)
       AND timestampfield <  UNIX_TIMESTAMP(LAST_DAY(CURDATE()) + INTERVAL 1 DAY);
    

    Note: You don't apply any function to your column data, but rather do all necessary calculations on the right side of the conditions (which are constants and are evaluated only once post-execution). This way you allow MySQL to benefit from index(es) that you might have on the timestampfield column.

    Original answer:

    SELECT id, FROM_UNIXTIME(timestampfield) timestamp 
      FROM table1
     WHERE MONTH(FROM_UNIXTIME(timestampfield)) = MONTH(CURDATE())
       AND YEAR(FROM_UNIXTIME(timestampfield)) = YEAR(CURDATE())
    

    Note: Although this query produces the correct results it effectively invalidates the proper usage of the index(es) that you might have on the timestampfield column (meaning MySQL will be forced to perform a fullscan)

    Here is SQLFiddle demo

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