Query tweater (2)
Apart from checking equality, you can also check for less than and greater than relationships, with < and >, just like in R.
con, a connection to the tweater database, is again available.
Este ejercicio forma parte del curso
Intermediate Importing Data in R
Instrucciones del ejercicio
- Create a data frame,
latest, that selects thepostcolumn from thetweatstable observations where thedateis higher than'2015-09-21'. - Print out
latest.
Ejercicio interactivo práctico
Prueba este ejercicio y completa el código de muestra.
# Connect to the database
library(DBI)
con <- dbConnect(RMySQL::MySQL(),
dbname = "tweater",
host = "courses.csrrinzqubik.us-east-1.rds.amazonaws.com",
port = 3306,
user = "student",
password = "datacamp")
# Import post column of tweats where date is higher than '2015-09-21': latest
# Print latest