Information Technology Reference
In-Depth Information
users also find SQL valuable because SQL statements can be embedded into many program-
ming languages, such as the widely used C++ and COBOL languages. Because SQL uses
standardized and simplified procedures for retrieving, storing, and manipulating data in a
database system, the popular database query language can be easy to understand and use.
Figure 5.14
Structured Query Language
Structured Query Language (SQL)
has become an integral part of most
relational databases, as shown by
this screen from Microsoft Access
2007.
After a database has been set up and loaded with data, it can produce desired reports,
documents, and other outputs (see Figure 5.15). These outputs usually appear in screen
displays or hard-copy printouts. The output-control features of a database program allow
you to select the records and fields to appear in reports. You can also make calculations
specifically for the report by manipulating database fields. Formatting controls and organi-
zation options (such as report headings) help you to customize reports and create flexible,
convenient, and powerful information-handling tools.
Figure 5.15
Database Output
A database application offers
sophisticated formatting and
organization options to produce the
right information in the right format.
 
 
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