Informix : Interval Time

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This databases discussion was started by robiverson 0n 26 December 2008

i have a table which has date and interval.interval contains hourandminute
Interval data is every 30 minute interval.for ex 0,30,100,130,200….1200,1230,1300 like this.

how do i get last 30 minute interval data from select query ?
Please let me know your thoughts

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