Conventions

In this book, you will find a number of styles of text that distinguish between different kinds of information. Here are some examples of these styles, and an explanation of their meaning.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "Therefore, during the creation of the Tbl_Book table in DynamoDB, we will specify only the BookTitle and Author attributes."

A block of code is set as follows:

aws dynamodb create-table --table-name Tbl_Book
--attribute-definitions AttributeName=BookTitle,AttributeType=S AttributeName=Author,AttributeType=S --key-schema AttributeName=BookTitle,KeyType=HASH AttributeName=Author,KeyType=RANGE 
--provisioned-throughput ReadCapacityUnits=2,WriteCapacityUnits=2

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

ScanRequest scanRequest = new ScanRequest()
  .withTableName("Tbl_Book");
ScanResult result = client.scan(scanRequest);

Any command-line input or output is written as follows:

copytable_uchitredshift from 'dynamodb:// table_uchitdynamodb' 
credentials 'aws_access_key_id=xxxxx;aws_secret_access_key=xxx' 
readratio 50;

New terms and important words are shown in bold. Words that you see on the screen, in menus or dialog boxes for example, appear in the text like this: "To view the inserted item, click on the Browse Items tab, select the Scan radio button, and click on the Go button."