使用 saveAsTable 命令使用 HiveContext 时如何保存 sparkR 数据帧
df_5 <- loadDF(sqlContext, "Report02_cashier_Hourly_total_Trans_july30.parquet", "parquet") /*I loaded the parquet file as dataframe*/
sqlContext <- sparkRHive.init(sc) /*Initialized the hive context*/
sql(sqlContext, "create table Report2_cashier_hourly (location_code INT, business_date DATE, cashier STRING, hour STRING, store_no STRING, region STRING, city STRING, zone STRING, Total_trans INT)") /*created a table Report2_cashier_hourly*/
如何使用saveAsTable(df, tableName, source, mode, ...)
保存df_5(data frame)
到配置单元表中Report02_cashier_hourly
。