Prototype for a dm object

The prototype contains all tables, all primary and foreign keys, but no data. All tables are truncated and converted to zero-row tibbles, also for remote data models. Columns retain their type. This is useful for performing creation and population of a database in separate steps.

Usage

dm_ptype(dm)

Arguments

dm

A dm object.

Examples

if (FALSE) { # dm:::dm_has_financial()
dm_financial() %>%
  dm_ptype()

dm_financial() %>%
  dm_ptype() %>%
  dm_nrow()
}