Belong to a time interval (January and February) data together, don't know how to write, the data about 100 w or so, with traversal impossible

CodePudding user response:

Looks like a database of live, if is a one time to live, for to mysql or access, according to the demand be, with written statement
In addition, didn't see it merge rule is what, what data and data1, timestamp and timestamp1 is what relation,

CodePudding user response:

Ab two tables need to associate a date in a table in table b, in which time interval is add b corresponding data in the table to a table behind, a bit like sliding window, don't know how to link