How to delete data with date value + time - mysql

Question

I want to delete data between 'change_slot' and ('change_slot' + 2min) WHERE type = ' crash', 'pilot_death', or 'eject'
DELETE FROM pe_LogEvent
WHERE pe_LogEvent_type = 'crash'
OR pe_LogEvent_type = 'pilot_death'
OR pe_LogEvent_type = 'eject'
AND pe_LogEvent_datetime IN??? pe_LogEvent_type = 'change_slot'
BETWEEN ('change_slot datetime') AND (DATE_ADD('change_slot datetime', INTERVAL 120)))
Visual SQL DB Image with annotation of what I am trying to accomplish.:
I have another issue now, I'm trying to think of a way to solve this one as well. I was trying to use maybe a 'for each' iterative statement to filter only 1 pilotname at a time maybe? How would you go about solving this?
Problem: different pilot change_slot and causes current pilot's death not to count now ... I need to only have same pilot change_slot within 2 min pilot_death, crash, or eject does not count

Answer 1

DELETE FROM pe_LogEvent
WHERE pe_LogEvent_datetime BETWEEN
(SELECT pe_LogEvent_datetime FROM pe_LogEvent WHERE pe_LogEvent_type = 'change_slot' ORDER BY pe_LogEvent_datetime DESC LIMIT 1)
AND (SELECT pe_LogEvent_datetime + INTERVAL 2 MINUTES FROM pe_LogEvent WHERE pe_LogEvent_type = 'change_slot' ORDER BY pe_LogEvent_datetime DESC LIMIT 1)
AND pe_LogEvent_type IN ('crash', 'pilot_death', 'eject')
Somethink like this?
EDIT:
According to your comments below this answer, propably you want something like this, but i am not sure but if not, propably you could change this SQL at your own.
For such non-obvious queries i always use the CTE. I love it because you could use it to 'separate' your logic to simplest 'steps'. Then it's looks simple and easy to see what going on (At least for me) instead of one big query from which it is not so easy to deduce what is happening and is more difficult to edit/read.
First you could use the CTE to get all 'change_slot' type events with dates:
WITH change_slots_dates AS (
SELECT
pe_LogEvent_datetime AS date_start,
pe_LogEvent_datetime + INTERVAL 2 MINUTE AS end_time
FROM pe_LogEvent
WHERE pe_LogEvent_type = 'change_slot'
)
then another CTE to get IDs between this dates (Remember that your's CTE need to be separate by , sign:
rows_to_delete AS (
SELECT
pe.pe_LogEvent_id AS id
FROM pe_LogEvent AS pe
INNER JOIN change_slots_dates AS csd ON (pe.pe_LogEvent_datetime BETWEEN csd.date_start AND csd.end_time)
WHERE pe.pe_LogEvent_type IN ('crash', 'pilot_death', 'eject')
)
after that you can finally delete this entities:
DELETE FROM pe_LogEvent WHERE pe_LogEvent_id IN (SELECT id FROM rows_to_delete);
Notice that this is a one SQL query and you cannot use this as 3 queries. So all seems to be like this:
WITH change_slots_dates AS (
SELECT
pe_LogEvent_datetime AS date_start,
pe_LogEvent_datetime + INTERVAL 2 MINUTE AS end_time
FROM pe_LogEvent
WHERE pe_LogEvent_type = 'change_slot'
),
rows_to_delete AS (
SELECT
pe.pe_LogEvent_id AS id
FROM pe_LogEvent AS pe
INNER JOIN change_slots_dates AS csd ON (pe.pe_LogEvent_datetime BETWEEN csd.date_start AND csd.end_time)
WHERE pe.pe_LogEvent_type IN ('crash', 'pilot_death', 'eject')
)
DELETE FROM pe_LogEvent WHERE pe_LogEvent_id IN (SELECT id FROM rows_to_delete);
I hope it will be finally more helpfull.