How to Calculate and Sum Time Durations in MySQL?

Calculating Duration and Summing Times in MySQL

When dealing with data containing time values, it's often necessary to calculate differences and aggregate the results. In MySQL, the task of summing time durations can be achieved using various techniques.

One such technique involves converting the time values into seconds, performing the calculations, and then converting the resulting seconds back into a time format for display. The following code snippet demonstrates this approach:

SELECT
  SEC_TO_TIME( SUM( TIME_TO_SEC( `time` ) ) ) AS total_time
FROM time_table;

In this example, the time_table table contains the time values in the specified format. The TIME_TO_SEC() function is used to convert the time values into seconds. The SUM() function calculates the total number of seconds for all the time values. Finally, the SEC_TO_TIME() function is used to convert the total seconds back into a time format.

The result of this query will be a single row containing the total duration of all the time values in the time_table table, formatted as hours, minutes, and seconds (e.g., '40:53:00'). This approach allows for accurate calculation and aggregation of time durations, ensuring that the total time is correctly represented.

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