simulate_dbi()simulate_sqlite()simulate_postgres()simulate_odbc(type = NULL)simulate_impala()simulate_mssql()tbl_lazy(df, src = NULL)lazy_frame(..., src = NULL)
simulate_sqlite()
simulate_postgres()
simulate_odbc(type = NULL)
simulate_impala()
simulate_mssql()
tbl_lazy(df, src = NULL)
lazy_frame(..., src = NULL)
library(dplyr) df <- data.frame(x = 1, y = 2) df_sqlite <- tbl_lazy(df, src = simulate_sqlite()) df_sqlite %>% summarise(x = sd(x)) %>% show_query()
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