join data based on approximate time stamp
I have two data tables that i need to join. table A has time stamps in hours: 24, 48, 72, 96,.... table B has online data with 5 minute intervals, so the time stamp must have several decimal places to capture the precision: 1.000, 1.083, 1.167, 1.250, 1.333, 1.417, 1.500 etc. joining B to A works well. these is no problems because there is always a whole number match of time stamp in table B wi...