How to Convert Year and Week Number to a Specific Date in MySQL?

Converting Week Number to Date

Question:

How can I convert a given year and calendar week into a specific date, such as Tuesday of that week?

Answer:

Utilizing MySQL's STR_TO_DATE() Function

MySQL's STR_TO_DATE() function provides a convenient one-line solution to this problem. The function converts a given string in a specific format into a DATE data type.

Example:

Suppose we want to determine the date of the Tuesday for the 32nd week of 2013. We can use the following query:

SELECT STR_TO_DATE('2013 32 Tuesday', '%X %V %W');

This query converts the string '2013 32 Tuesday' into a date value using the specified format:

• %X: Year
• %V: Week number
• %W: Day of the week (Tuesday)

Result:

The query will output the date '2013-08-13', which is the Tuesday of the 32nd week of 2013.

This solution offers a concise and efficient way to convert from a week number to a specific date, making it a reliable option for various programming tasks.

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