Writing and extracting JSON documents from DynamoDB
       Use tDynamoDBOutput to write a JSON document to a DynamoDB table and then use tDynamoDBInput to extract a child element of this JSON element.
	
	  
      Prerequisites:
		
      - A Talend Studio with Big Data
 - Your AWS credentials that have been granted the access to your Amazon DynamoDB.
 
The sample data to be used reads like
			this:
      
      21058;{"accountId" : "900" , "accountName" :  "xxxxx" , "action" : "Create", "customerOrderNumber" : { "deliveryCode" :  "261" , "deliveryId" :  "313"}}
21059;{"accountId" : "901" , "accountName" :  "xxxxy" , "action" : "Delete", "customerOrderNumber" : { "deliveryCode" :  "262" , "deliveryId" :  "314"}}This data has two columns: DeliverID and EventPayLoad, seperated by a semicolon (;). The JSON document itself is stored in the EventPayLoad column.