dbListFields,DatabaseConnectorConnection,character-method {DatabaseConnector}

List field names of a remote table

Description

Returns the field names of a remote table as a character vector.

Usage

## S4 method for signature 'DatabaseConnectorConnection,character'
dbListFields(conn, name, databaseSchema = NULL, ...)

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"')

databaseSchema

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

...

Other parameters passed on to methods.

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.

Value

dbListFields() returns a character vector that enumerates all fields in the table in the correct order. This also works for temporary tables if supported by the database. The returned names are suitable for quoting with dbQuoteIdentifier().

See Also

dbColumnInfo() to get the type of the fields.

Other DBIConnection generics: DBIConnection-class, dbAppendTable(), dbCreateTable(), dbDataType(), dbDisconnect(), dbExecute(), dbExistsTable(), dbGetException(), dbGetInfo(), dbGetQuery(), dbIsReadOnly(), dbIsValid(), dbListObjects(), dbListResults(), dbListTables(), dbReadTable(), dbRemoveTable(), dbSendQuery(), dbSendStatement(), dbWriteTable()