tbl_lazy {dbplyr} | R Documentation |
These functions are useful for testing SQL generation without having to
have an active database connection. See simulate_dbi()
for a list
available database simulations.
tbl_lazy(df, con = simulate_dbi(), src = NULL) lazy_frame(..., con = simulate_dbi(), src = NULL)
library(dplyr) df <- data.frame(x = 1, y = 2) df_sqlite <- tbl_lazy(df, con = simulate_sqlite()) df_sqlite %>% summarise(x = sd(x, na.rm = TRUE)) %>% show_query()