sqldf has some facilities for Date class but has no knowledge of date class.
See example 7b on home page: http://sqldf.googlecode.com
and here is a second example:
> DF <- data.frame(D = as.Date(c("21DEC2006","15DEC2006"), "%d%b%Y"))
> DF
D
1 2006-12-21
2 2006-12-15
> sqldf("select * f
Hello,
I am having trouble with retrieving some data in queries involve with variables
with data type "date". See the enclosed example:
ll<-c("21DEC2006","15DEC2006")
ss<-data.frame(ll)
ss<-transform(ss,ll=as.date(as.character(ll)))
(ss)
ll
1 17156
2 17150
tt<-sqldf("select ll from ss")
(t
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