Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement. It’s sometimes difficult to know which SQL syntax to use when ...

The MySQL Workbench main window. How to create tables and add data to MySQL database with MySQL Workbench Your email has been sent The MySQL Workbench GUI is cross-platform, open source, and ...

A common SQL habit is to use SELECT * on a query, because it’s tedious to list all the columns you need. Plus, sometimes those columns may change over time, so why not just do things the easy way? But ...

Microsoft Excel 2010 can convert a worksheet to a data table to help you quickly analyze your related data in formatted rows and columns. When you need to expand the table layout, apply the Home tab ...

Inside a relational database management system, the princi­pal persisted data structure is considered a logical relation. Operations performed against that data within the RDBMS result in a logical ...

In Microsoft Access, you can add records to an existing table that already as data and resize the columns that contain the fields and data, especially if there is not enough space within the columns ...