calculate the difference of hours / minutes of specific day

Posted 5 months ago by gutogirardon

I have the following return:

2018-10-18 02:22:35 O
2018-10-18 02:22:34 OI
2018-10-18 02:22:32 II
2018-10-18 02:22:31 I

Where the first value is a timestamp and the second a type field.

This type field is used to determine the date entry of the value.

I = Input;
II = Interval;
OI = Interval Return;
O = Output;

I want to calculate the time difference of I with O, decreasing with the difference of II and OI.

My biggest problem is being in how to compare the type (knowing which one is the first and the last one) and also how not to mix the days because there are more results.

The goal is to create a table containing day, start time, end time and this time difference for each day.

I accept any suggestion.

I'm grateful.

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