Question

I have a MYSQL database that starts an update at say 07:20:00 and will finish at 07:20:04

When I do a query for all entries done at this time I don’t really want to do a range but when I query

select * from Locations where timestamp = "2011-03-25 07:20:00"

I only get the first 3 entries below…..

What I ideally need is a query that ignores the seconds part so is…

select * from Locations where timestamp = "2011-03-25 07:20"

But that returns nothing….

1159    45.9432 5.0913  2011-03-25 07:20:00 256
1160    52.5254 10.6599 2011-03-25 07:20:00 1515
1161    49.967  7.2264  2011-03-25 07:20:00 1540
1162    54.1803 11.2977 2011-03-25 07:20:01 260
1163    55.1114 12.5347 2011-03-25 07:20:01 261
1164    43.4058 4.86937 2011-03-25 07:20:02 262
1165    42.3209 -0.57372    2011-03-25 07:20:02 263
1166    51.3763 3.23578 2011-03-25 07:20:02 265
1167    50.1532 6.40325 2011-03-25 07:20:02 266
1168    50.7152 4.55064 2011-03-25 07:20:02 267
1169    50.3813 7.92902 2011-03-25 07:20:02 268
1170    52.1096 5.78085 2011-03-25 07:20:02 269
1171    56.0632 -2.6779 2011-03-25 07:20:02 271
1172    48.6551 11.25   2011-03-25 07:20:02 1574
1173    52.4609 5.08926 2011-03-25 07:20:02 272
1174    51.0239 3.02428 2011-03-25 07:20:02 273
1175    48.4228 11.4413 2011-03-25 07:20:02 275

Answer 1

Why don’t you want to do a range? What’s so evil about

select * from Locations 
where timestamp between "2011-03-25 07:20:00" and "2011-03-25 07:20:59"