有没有办法直接从 tbl_dbi
对象(下面的 db_mtcars
)中获取字段名称?
library(RSQLite)
library(dbplyr)
library(dplyr)
con <- dbConnect(RSQLite::SQLite(), ":memory:")
dbWriteTable(con, "mtcars", mtcars)
db_mtcars <- tbl(con, "mtcars")
最佳答案
是 colnames()
> colnames(db_mtcars)
[1] "mpg" "cyl" "disp" "hp" "drat" "wt" "qsec" "vs" "am" "gear"
[11] "carb"
关于r - 如何从 tbl_dbi 中获取字段名称?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/47315537/