backend-hana: Backend: SAP HANA
In dbplyr: A 'dplyr' Back End for Databases

backend-hana

R Documentation

Backend: SAP HANA

Description

See vignette("translation-function") and vignette("translation-verb") for details of overall translation technology. Key differences for this backend are:

Temporary tables get ⁠#⁠ prefix and use ⁠LOCAL TEMPORARY COLUMN⁠.
No table analysis performed in copy_to().
paste() uses ||
Note that you can't create new boolean columns from logical expressions; you need to wrap with explicit ifelse: ifelse(x > y, TRUE, FALSE).

Use simulate_hana() with lazy_frame() to see simulated SQL without converting to live access database.

Usage

simulate_hana()

Examples

library(dplyr, warn.conflicts = FALSE)

lf <- lazy_frame(a = TRUE, b = 1, c = 2, d = "z", con = simulate_hana())
lf %>% transmute(x = paste0(d, " times"))

dbplyr documentation built on May 29, 2024, 6:19 a.m.