Copy data frames to database tables

Source: R/DBI.R

Writes, overwrites or appends a data frame to a database table, optionally converting row names to a column and specifying SQL data types for fields.

# S4 method for class 'DatabaseConnectorConnection,ANY'
dbWriteTable(
  conn,
  name,
  value,
  databaseSchema = NULL,
  overwrite = FALSE,
  append = FALSE,
  temporary = FALSE,
  ...
)

Arguments

conn

A DBIConnection object, as returned by 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).

databaseSchema

The name of the database schema. See details for platform-specific details.

overwrite

Overwrite an existing table (if exists)?

append

Append to existing table?

temporary

Should the table created as a temp table?

...

Other parameters passed on to methods.

Value

dbWriteTable() returns TRUE, invisibly.

Details

The databaseSchema argument is interpreted differently according to the different platforms: SQL Server and PDW: The databaseSchema schema should specify both the database and the schema, e.g. 'my_database.dbo'. Impala: the databaseSchema should specify the database. Oracle: The databaseSchema should specify the Oracle 'user'. All other : The databaseSchema should specify the schema.