Python Pandas read_sql - call previously specified date

Question

I have a sql query and I want to specify the date outside of the where query so it can be changed as needed. The following code isn't working and I'm not sure what else to try.

startdate='2018-01-01'

test=pd.read_sql("""select * from database.table where date > :startdate ; """ , connection)

Answer 1

这个怎么样

test=pd.read_sql('select * from database.table where date > {}'.format(startdate) , connection)