Determining the Number of Records by Day, Month, and Year

     
mysql>
mysql> CREATE TABLE mytable (
    ->   id int(11) NOT NULL default '0',
    ->   choice tinyint(4) NOT NULL default '0',
    ->   ts timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP,
    ->   PRIMARY KEY  (id)
    -> );
Query OK, 0 rows affected (0.01 sec)

mysql>
mysql> INSERT INTO mytable VALUES (1,4,'2003-01-14 15:46:18'),
    ->                                 (2,1,'2003-01-14 15:49:44'),
    ->                                 (3,4,'2003-01-14 15:49:50'),
    ->                                 (4,4,'2003-01-14 15:49:53'),
    ->                                 (5,4,'2003-01-14 15:49:54'),
    ->                                 (6,2,'2003-01-14 15:49:58');
Query OK, 6 rows affected (0.00 sec)
Records: 6  Duplicates: 0  Warnings: 0

mysql>
mysql>
mysql> SELECT COUNT(*), MONTH(ts) AS m
    -> FROM mytable
    -> WHERE YEAR(ts)=2002;
+----------+------+
| COUNT(*) | m    |
+----------+------+
|        0 | NULL |
+----------+------+
1 row in set (0.00 sec)

mysql>
mysql> drop table mytable;
Query OK, 0 rows affected (0.00 sec)

Related examples in the same category

1.	Date function: YEAR
2.	Retrieve year from a date
3.	Use YEAR in where clause
4.	To find the earliest birthday within the calendar year, sort by the month and day of the birth values
5.	Extract the year part of the reference date and use normal arithmetic to add 10, 20, and 40 to it
6.	The following query shows two ways to determine the date for Christmas two years hence.
7.	Performing Leap Year Calculations
8.	Another way to compute a year's length is to compute the date of the last day of the year and pass it to DAYOF
9.	Using Leap Year Tests for Month-Length Calculations
10.	February 29 of leap years and March 1 of non-leap years appear to be the same day:
11.	Extract the year from a date value by using the YEAR() function: YEAR()
12.	Calculate a numerical value for the day, as it falls in the year: DAYOFYEAR()
13.	Add a YEAR column type
14.	%m returns the month (01-12), %d returns the day (01-31), and %Y returns the year in four digits.
15.	Use the YEAR() function
16.	For each player, find the player number, the year in which he or she joined the club, and the player's age gro
17.	Find the player number, the year in which he or she joined the club, the town where he or she lives, and a cla
18.	Get the payment number and the year of each penalty paid after 1980.
19.	Get the penalties that were paid between Christmas 1982 (December 25) and New Year's Eve.
20.	For each player whose number is less than 60, get the number of years between the year in which that player jo
21.	Get the numbers of the players who were born in the same year as player 27.
22.	Get year value from date type and compare
23.	Get day name, month name and day of year
24.	Get the year of a date and compare
25.	Get the Year value from subquery
26.	Compare the year value in where clause
27.	Year value in
28.	Distinct year value
29.	Group by year
30.	HAVING MAX(YEAR(PAYMENT_DATE)) = 1984
31.	Check year value
32.	ON SCHEDULE EVERY 1 YEAR
33.	WHERE clause uses only part of the date column in the comparisons:
34.	Performing Date Calculations
35.	Calculate an age as of the beginning 1975 for someone born on 1965-03-01.
36.	How old are the Smith children today?
37.	Determining Ages in Months

Determining the Number of Records by Day, Month, and Year : Year « Date Time « SQL / MySQL

Related examples in the same category