The JSON format is one of the most popular formats to transfer and exchange data in web. Almost all RESTful web services take JSON input and provide JSON output but unfortunately JDK doesn't have built-in support for one of the most common web standard like JSON. As a Java developer if you want to develop RESTful web service and produce JSON data or if you are developing a client to an existing RESTFul web services and want to consume JSON response, you don't need to be disappointed. Fortunately, there are so many open source libraries and API available for creating, parsing and processing JSON response in Java e.g. Jackson, Google GSon, json-simple etc.
The GETDATE is one of the most popular built-in methods of Microsoft SQL Server, but unlike its name suggest, it doesn't return just date, instead it returns date with time information e.g. 2015-07-31 15:42:54.470 , quite similar to our own java.util.Date from Java world. If you want just date like 2015-07-31, or just time like 15:42:54.470 then you need to either CAST or CONVERT output of GETDATE function into DATE or TIME data type. From SQL Server 2008 onward, apart from DATETIME, which is used to store both date and time, You also have a DATE data type to store date without time e.g. 2015-07-31, and a TIME data type to store time without any date information e.g. 15:42:54.470. Since GETDATE() function return a DATETIME value, You have to use either CAST or CONVERT method to convert a DATETIME value to DATE or TIME in SQL Server.
If you are working in Java, you might have heard about Scala, Groovy, and Closure. Out of these three Groovy seems to be gaining a place in Java projects more rapidly than others. Groovy is a Scripting language but runs on Java virtual machine. Every Java program can run on Groovy platform. As per official Groovy website, "Apache Groovy is a powerful, optionally typed and dynamic language, with static typing and static compilation capabilities, for the Java platform aimed at improving developer productivity thanks to a concise, familiar and easy to learn syntax". I think, they have highlighted the key capabilities of Groovy very well in that sentence. It basically further reduce the burden from Java developer with respect to coding. Now, you can put more focus on business logic and get your work done quickly without wasting time on writing more code.