2. Author SQL statements & clauses Once you understand the structure and building blocks of a database, it’s time to learn to extract the information you need using SQL queries.

In an effort to improve how MongoDB supplies its data to external applications, MongoDB keeper 10gen has extended the open source data store's query language, providing developers with more ...

Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement.

Dynamic SQL lets you create a query string based off of user input. SQL Server allows you to create dynamic SQL statements. The statements use a SQL string varchar data type, then you execute the ...

Apache Phoenix: Its developers call it a “SQL skin for HBase” — a way to query HBase with SQL-like commands via an embeddable JDBC driver built for high performance and read/write operations.

How SQL Works SQL, the structured query language, is a programming language for communicating with databases.