DataFrameWriter.Mode Method
Definition
Important
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Overloads
| Mode(SaveMode) |
Specifies the behavior when data or table already exists. |
| Mode(String) |
Specifies the behavior when data or table already exists. |
Mode(SaveMode)
Specifies the behavior when data or table already exists.
public Microsoft.Spark.Sql.DataFrameWriter Mode(Microsoft.Spark.Sql.SaveMode saveMode);member this.Mode : Microsoft.Spark.Sql.SaveMode -> Microsoft.Spark.Sql.DataFrameWriterPublic Function Mode (saveMode As SaveMode) As DataFrameWriterParameters
- saveMode
- SaveMode
Save mode enum
Returns
This DataFrameWriter object
Remarks
Options include: - SaveMode.Overwrite: overwrite the existing data. - SaveMode.Append: append the data. - SaveMode.Ignore: ignore the operation (i.e. no-op). - SaveMode.ErrorIfExists: default option, throw an exception at runtime.
Applies to
Mode(String)
Specifies the behavior when data or table already exists.
public Microsoft.Spark.Sql.DataFrameWriter Mode(string saveMode);member this.Mode : string -> Microsoft.Spark.Sql.DataFrameWriterPublic Function Mode (saveMode As String) As DataFrameWriterParameters
- saveMode
- String
Save mode string
Returns
This DataFrameWriter object
Remarks
Options include: - "overwrite": overwrite the existing data. - "append": append the data. - "ignore": ignore the operation (i.e.no-op). - "error" or "errorifexists": default option, throw an exception at runtime.