MySQL has abundant functions that support a multitude of application needs. Here, we shall use some Calendar functionality to find in which week a given date belongs.
Samples:
Considering the date, 28th February of 2000, the following syntax in MySQL will result as below
Query 1:
SELECT WEEKOFYEAR("2000-02-28")
Output:
+---------------------------+| WEEKOFYEAR("2000-02-28") |+---------------------------+| 9 |+---------------------------+
This implies that the date is part of week 9 in the calendar year 2000.
Query 2: Similarly, we shall look at 29th February of 2000 and since the year is a leap year, this date is valid. The below is the result.
SELECT WEEKOFYEAR("2000-02-29")
Output:
+---------------------------+| WEEKOFYEAR("2000-02-29") |+---------------------------+| 9 |+---------------------------+
Query 3: We can look at 29th February of 2001, which is NOT a valid date since this is NOT a leap year. The code below is the result.
SELECT WEEKOFYEAR("2001-02-29")
Output:
+---------------------------+| WEEKOFYEAR("2001-02-29") |+---------------------------+| (NULL) |+---------------------------+
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