This is what you need:
val sc = new SparkContext(sparkConf)
val sqlContext = new org.apache.spark.sql.SQLContext(sc)
import sqlContext.implicits._
> On Mar 4, 2016, at 11:03 PM, Mich Talebzadeh <[email protected]>
> wrote:
>
> Hi Ted,
>
> This is my code
>
> import org.apache.spark.SparkConf
> import org.apache.spark.sql.Row
> import org.apache.spark.sql.hive.HiveContext
> import org.apache.spark.sql.types._
> import org.apache.spark.sql.SQLContext
> //
> object Sequence {
> def main(args: Array[String]) {
> val conf = new
> SparkConf().setAppName("Sequence").setMaster("local[*]").set("spark.driver.allowMultipleContexts",
> "true")
> val sc = new SparkContext(conf)
> val sqlContext = new org.apache.spark.sql.SQLContext(sc)
> val HiveContext = new org.apache.spark.sql.hive.HiveContext(sc)
> val a = Seq(("Mich",20), ("Christian", 18), ("James",13), ("Richard",16))
> // Sort option 1 using tempTable
> val b = a.toDF("Name","score").registerTempTable("tmp")
> sql("select Name,score from tmp order by score desc").show
> // Sort option 2 with FP
> a.toDF("Name","score").sort(desc("score")).show
> }
> }
>
> And the error I am getting now is
>
> [info] downloading
> https://repo1.maven.org/maven2/org/scala-lang/jline/2.10.5/jline-2.10.5.jar
> <https://repo1.maven.org/maven2/org/scala-lang/jline/2.10.5/jline-2.10.5.jar>
> ...
> [info] [SUCCESSFUL ] org.scala-lang#jline;2.10.5!jline.jar (103ms)
> [info] Done updating.
> [info] Compiling 1 Scala source to
> /home/hduser/dba/bin/scala/Sequence/target/scala-2.10/classes...
> [info] 'compiler-interface' not yet compiled for Scala 2.10.5. Compiling...
> [info] Compilation completed in 12.462 s
> [error] /home/hduser/dba/bin/scala/Sequence/src/main/scala/Sequence.scala:16:
> value toDF is not a member of Seq[(String, Int)]
> [error] val b = a.toDF("Name","score").registerTempTable("tmp")
> [error] ^
> [error] /home/hduser/dba/bin/scala/Sequence/src/main/scala/Sequence.scala:17:
> not found: value sql
> [error] sql("select Name,score from tmp order by score desc").show
> [error] ^
> [error] /home/hduser/dba/bin/scala/Sequence/src/main/scala/Sequence.scala:19:
> value toDF is not a member of Seq[(String, Int)]
> [error] a.toDF("Name","score").sort(desc("score")).show
> [error] ^
> [error] three errors found
> [error] (compile:compileIncremental) Compilation failed
> [error] Total time: 88 s, completed Mar 4, 2016 11:12:46 PM
>
>
> Dr Mich Talebzadeh
>
> LinkedIn
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>
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>
> http://talebzadehmich.wordpress.com <http://talebzadehmich.wordpress.com/>
>
>
> On 4 March 2016 at 22:52, Ted Yu <[email protected]
> <mailto:[email protected]>> wrote:
> Can you show your code snippet ?
> Here is an example:
>
> val sqlContext = new SQLContext(sc)
> import sqlContext.implicits._
>
> On Fri, Mar 4, 2016 at 1:55 PM, Mich Talebzadeh <[email protected]
> <mailto:[email protected]>> wrote:
> Hi Ted,
>
> I am getting the following error after adding that import
>
> [error] /home/hduser/dba/bin/scala/Sequence/src/main/scala/Sequence.scala:5:
> not found: object sqlContext
> [error] import sqlContext.implicits._
> [error] ^
> [error] /home/hduser/dba/bin/scala/Sequence/src/main/scala/Sequence.scala:15:
> value toDF is not a member of Seq[(String, Int)]
>
>
> Dr Mich Talebzadeh
>
> LinkedIn
> https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw
>
> <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>
>
> http://talebzadehmich.wordpress.com <http://talebzadehmich.wordpress.com/>
>
>
> On 4 March 2016 at 21:39, Ted Yu <[email protected]
> <mailto:[email protected]>> wrote:
> Can you add the following into your code ?
> import sqlContext.implicits._
>
> On Fri, Mar 4, 2016 at 1:14 PM, Mich Talebzadeh <[email protected]
> <mailto:[email protected]>> wrote:
> Hi,
>
> I have a simple Scala program as below
>
> import org.apache.spark.SparkContext
> import org.apache.spark.SparkContext._
> import org.apache.spark.SparkConf
> import org.apache.spark.sql.SQLContext
> object Sequence {
> def main(args: Array[String]) {
> val conf = new SparkConf().setAppName("Sequence")
> val sc = new SparkContext(conf)
> val sqlContext = new org.apache.spark.sql.SQLContext(sc)
> val HiveContext = new org.apache.spark.sql.hive.HiveContext(sc)
> val a = Seq(("Mich",20), ("Christian", 18), ("James",13), ("Richard",16))
> // Sort option 1 using tempTable
> val b = a.toDF("Name","score").registerTempTable("tmp")
> sql("select Name,score from tmp order by score desc").show
> // Sort option 2 with FP
> a.toDF("Name","score").sort(desc("score")).show
> }
> }
>
> I build this using sbt tool as below
>
> cat sequence.sbt
> name := "Sequence"
> version := "1.0"
> scalaVersion := "2.10.5"
> libraryDependencies += "org.apache.spark" %% "spark-core" % "1.5.0"
> libraryDependencies += "org.apache.spark" %% "spark-sql" % "1.0.0"
> libraryDependencies += "org.apache.spark" %% "spark-hive" % "1.5.0"
>
>
> But it fails compilation as below
>
> [info] Compilation completed in 12.366 s
> [error] /home/hduser/dba/bin/scala/Sequence/src/main/scala/Sequence.scala:15:
> value toDF is not a member of Seq[(String, Int)]
> [error] val b = a.toDF("Name","score").registerTempTable("tmp")
> [error] ^
> [error] /home/hduser/dba/bin/scala/Sequence/src/main/scala/Sequence.scala:16:
> not found: value sql
> [error] sql("select Name,score from tmp order by score desc").show
> [error] ^
> [error] /home/hduser/dba/bin/scala/Sequence/src/main/scala/Sequence.scala:18:
> value toDF is not a member of Seq[(String, Int)]
> [error] a.toDF("Name","score").sort(desc("score")).show
> [error] ^
> [error] three errors found
> [error] (compile:compileIncremental) Compilation failed
> [error] Total time: 95 s, completed Mar 4, 2016 9:06:40 PM
>
> I think I am missing some dependencies here
>
>
> I have a simple
> Dr Mich Talebzadeh
>
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>
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>
> http://talebzadehmich.wordpress.com <http://talebzadehmich.wordpress.com/>
>
>
>
>
>
