database - Unable to receive the entire data frame from Sqlite using R (dplyr) -


I am using the R on the disk data stored in SQL data databases by using R to tamper with data Here are my steps:

First of all , I have copied the flight data set to my empty test database:

   

Then / Strong>, I cleared R memory and remove flights from the test database Tried to :

  Library (dplyr) test_db & lt; - src_sqlite ("E: / Sqlite  

(choose flight, year, month, day, dep_time, tailnum)

warnings

Use n = -1 to retrieve all of the
  pop up with  

The data is completely How to complete flight data from, which includes more than 300,000 rows.

In fact a side question : Is it possible to manipulate some advanced data (recycle, long Detailed for data By using R to use R directly, instead of calling / data, using R directly on remote on-disk data in a database can be a memory problem?

If your goal is to get the data back in the R data frame, you can use the dplyr :: collect () .

  flights_df2 <- Flight%>% Selection (year, month, day, dep_time, tellnam)% & gt;% archive ()  
< / Div>

Comments