A faster statement for time queries in SQL Server

server| Comparison | The comparison of the statements in access is simple, such as the SELECT * from table Where thetime># ' & Now () & #这样即可

This cannot be done in MSSQL, and is compared using the DateDiff statement and the GETDATE () function.

For example, select Count (*) from table where DateDiff (S,getdate (), thetime) >0, I specifically made a 500,000-piece table of data, which would take almost 1200 milliseconds to execute.

Later studied, found that in fact, do not need to use the DateDiff function, you can directly use the > to compare, the statement is as follows: Select Count (*) from table Where thetime>getdate (), so almost 750 milliseconds, Nearly 500 milliseconds faster.