DataFrame.Select Method

Definition

Namespace:

Microsoft.Spark.Sql

Assembly:

Microsoft.Spark.dll

Package:

Microsoft.Spark v1.0.0

Overloads

Select(Column[])	Selects a set of column based expressions.
Select(String, String[])	Selects a set of columns. This is a variant of Select() that can only select existing columns using column names (i.e. cannot construct expressions).

Select(Column[])

Selects a set of column based expressions.

public Microsoft.Spark.Sql.DataFrame Select (params Microsoft.Spark.Sql.Column[] columns);

member this.Select : Microsoft.Spark.Sql.Column[] -> Microsoft.Spark.Sql.DataFrame

Public Function Select (ParamArray columns As Column()) As DataFrame

Parameters

columns

Column[]

Column expressions

Returns

DataFrame

DataFrame object

Select(String, String[])

Selects a set of columns. This is a variant of Select() that can only select existing columns using column names (i.e. cannot construct expressions).

public Microsoft.Spark.Sql.DataFrame Select (string column, params string[] columns);

member this.Select : string * string[] -> Microsoft.Spark.Sql.DataFrame

Public Function Select (column As String, ParamArray columns As String()) As DataFrame

Parameters

column

String

Column name

columns

String[]

Additional column names

Returns

DataFrame

DataFrame object