This function must be "unquoted" using the "bang bang" operator (!!). See example.
Arguments
- date
The name of a date column in the database table as a character string
- number
The number of units to add. Can be a positive or negative whole number.
- interval
The units to add. Must be either "day" (default) or "year"
Examples
if (FALSE) {
con <- DBI::dbConnect(duckdb::duckdb())
date_tbl <- dplyr::copy_to(con, data.frame(date1 = as.Date("1999-01-01")),
name = "tmpdate", overwrite = TRUE, temporary = TRUE)
df <- date_tbl %>%
dplyr::mutate(date2 = !!dateadd("date1", 1, interval = "year")) %>%
dplyr::collect()
DBI::dbDisconnect(con, shutdown = TRUE)
}