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backend-hana

Backend: SAP HANA


Description

See vignette("translate-function") and vignette("translate-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(z, " times"))

dbplyr

A 'dplyr' Back End for Databases

v2.1.1
MIT + file LICENSE
Authors
Hadley Wickham [aut, cre], Maximilian Girlich [aut], Edgar Ruiz [aut], RStudio [cph, fnd]
Initial release

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