org.apache.spark.sql.sources

UpdatableRelation

trait UpdatableRelation extends SingleRowInsertableRelation

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  1. abstract def executeUpdate(sql: String): Int

    Execute a DML SQL and return the number of rows affected.

    Execute a DML SQL and return the number of rows affected.

    Definition Classes
    SingleRowInsertableRelation
  2. abstract def update(filterExpr: String, newColumnValues: Row, updateColumns: Seq[String]): Int

    Update a set of rows matching given criteria.

    Update a set of rows matching given criteria.

    filterExpr

    SQL WHERE criteria to select rows that will be updated

    newColumnValues

    updated values for the columns being changed; must match updateColumns

    updateColumns

    the columns to be updated; must match updatedColumns

    returns

    number of rows affected

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