duckdb_connection-class function

DuckDB connection class

Implements DBI::DBIConnection . class

## S4 method for signature 'duckdb_connection'
dbAppendTable(conn, name, value, ..., row.names = NULL)

## S4 method for signature 'duckdb_connection'
dbBegin(conn, ...)

## S4 method for signature 'duckdb_connection'
dbCommit(conn, ...)

## S4 method for signature 'duckdb_connection'
dbDataType(dbObj, obj, ...)

## S4 method for signature 'duckdb_connection,ANY'
dbExistsTable(conn, name, ...)

## S4 method for signature 'duckdb_connection'
dbGetInfo(dbObj, ...)

## S4 method for signature 'duckdb_connection'
dbIsValid(dbObj, ...)

## S4 method for signature 'duckdb_connection,character'
dbListFields(conn, name, ...)

## S4 method for signature 'duckdb_connection'
dbListTables(conn, ...)

## S4 method for signature 'duckdb_connection,ANY'
dbQuoteIdentifier(conn, x, ...)

## S4 method for signature 'duckdb_connection'
dbQuoteLiteral(conn, x, ...)

## S4 method for signature 'duckdb_connection,character'
dbRemoveTable(conn, name, ..., fail_if_missing = TRUE)

## S4 method for signature 'duckdb_connection'
dbRollback(conn, ...)

## S4 method for signature 'duckdb_connection,character'
dbSendQuery(conn, statement, params = NULL, ..., arrow = FALSE)

## S4 method for signature 'duckdb_connection,character,data.frame'
dbWriteTable(
  conn,
  name,
  value,
  ...,
  row.names = FALSE,
  overwrite = FALSE,
  append = FALSE,
  field.types = NULL,
  temporary = FALSE
)

## S4 method for signature 'duckdb_connection'
show(object)

Arguments

• conn: A duckdb_connection object as returned by DBI::dbConnect()

• name: The table name, passed on to dbQuoteIdentifier(). Options are:

  • a character string with the unquoted DBMS table name, e.g. "table_name",
  • a call to Id() with components to the fully qualified table name, e.g. Id(schema = "my_schema", table = "table_name")
  • a call to SQL() with the quoted and fully qualified table name given verbatim, e.g. SQL('"my_schema"."table_name"')

• value: A data.frame (or coercible to data.frame).

• ...: Other parameters passed on to methods.

• row.names: Whether the row.names of the data.frame should be preserved

• dbObj: An object inheriting from class duckdb_connection .

• obj: An R object whose SQL type we want to determine.

• statement: a character string containing SQL.

• params: For dbBind(), a list of values, named or unnamed, or a data frame, with one element/column per query parameter. For dbBindArrow(), values as a nanoarrow stream, with one column per query parameter.

• arrow: Whether the query should be returned as an Arrow Table

• overwrite: If a table with the given name already exists, should it be overwritten?

• append: If a table with the given name already exists, just try to append the passed data to it

• field.types: Override the auto-generated SQL types

• temporary: Should the created table be temporary?

• object: Any R object