mlr3db: Data Base Backend for 'mlr3'

Extends the 'mlr3' package with a backend to transparently work with databases such as 'SQLite', 'DuckDB', 'MySQL', 'MariaDB', or 'PostgreSQL'. The package provides two additional backends: 'DataBackendDplyr' relies on the abstraction of package 'dbplyr' to interact with most DBMS. 'DataBackendDuckDB' operates on 'DuckDB' data bases and also on Apache Parquet files.

Version: 0.5.2
Depends: mlr3 (≥ 0.13.0), R (≥ 3.1.0)
Imports: R6 (≥ 2.4.0), backports, checkmate, data.table, mlr3misc (≥ 0.10.0)
Suggests: DBI, RSQLite, dbplyr, dplyr, duckdb (≥ 0.4.0), future, future.apply, future.callr, lgr, testthat (≥ 3.0.0), tibble
Published: 2023-11-04
DOI: 10.32614/CRAN.package.mlr3db
Author: Michel Lang ORCID iD [cre, aut]
Maintainer: Michel Lang <michellang at>
License: LGPL-3
URL: https:///,
NeedsCompilation: no
Materials: README NEWS
CRAN checks: mlr3db results


Reference manual: mlr3db.pdf


Package source: mlr3db_0.5.2.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
macOS binaries: r-release (arm64): mlr3db_0.5.2.tgz, r-oldrel (arm64): mlr3db_0.5.2.tgz, r-release (x86_64): mlr3db_0.5.2.tgz, r-oldrel (x86_64): mlr3db_0.5.2.tgz
Old sources: mlr3db archive

Reverse dependencies:

Reverse suggests: mlr3oml


Please use the canonical form to link to this page.