backend-oracle {dbplyr}

Backend: Oracle

Description

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

• Use ⁠FETCH FIRST⁠ instead of LIMIT

• Custom types

• paste() uses ||

• Custom subquery generation (no AS)

• setdiff() uses MINUS instead of EXCEPT

Note that versions of Oracle prior to 23c have limited supported for TRUE and FALSE and you may need to use 1 and 0 instead. See https://oracle-base.com/articles/23c/boolean-data-type-23c for more details.

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

Usage

simulate_oracle()

Examples

library(dplyr, warn.conflicts = FALSE)

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