Sent from Samsung tablet.
Dear all,
?
I recently read the book ? R data preperation and manipulation using sqldf
package? ?by Djoni Darmawikarta?
However, I have a problem with manipulation of dates using this package, I do
not get the expected results. Do I need to install some packages ?to be able to
subset the data by dates in sqldf?
?
I am not getting Djoni Darmawikarta?email address.
?
Please see the practice data attached and advise,
?
Kind regards,
?
Mangalani Peter Makananisa (0005786)
South African Revenue Service (SARS)
Specialist: Statistical Support
TCEI_OR (Head Office)
Tell: +2712?422 7357, Cell: +2782?456 4669
?
?
product = read.csv('D:/Users/S1033067/Desktop/sqldf prac/sqlprac.csv',
na.strings = '', header = T)
head(product)
library(sqldf)
sqldf()
?
# out-put
?> sqldf("select * from product
+???????????????? where (date(Launch_dt) >= date('01-01-2003'))
+????? ")
[1] P_Code??? P_Name??? Launch_dt Price???
<0 rows> (or 0-length row.names)>?
?
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