Writing a routine to create sequential records

Question

I would like to write a routine which will allow me to take dated events (records) in a table which span accross a set time frame and in the cases where no event took place

Answer 1

With no details about your specifics (table schema, available language options etc), iI guess that you just need the algorithm to pick up. So here's a quick algorithm with no safeguards.

properdata = "select * from data where eventHasTakenPlace=true";
wrongdata = "select * from data where eventHasTakenPlace=false";
for each wrongRecord in wrongdata {
    exampleRecord = select a.value1, a.value2,...,a.date from properdata as a 
    inner join
    (select id,max(date)
     from properdata
     group by id
     having date