Mobile location-based services usually access large geo databases via a wireless network. Sometimes it is useful to store a certain amount of geo objects on the mobile device. In this paper we present an approach to store geo data in an embedded SQL database on smart phones. Besides the storage of geometries in SQL tables we have to provide an efficient geometric indexing mechanism. We used the...

In order to realize unified deployment and system planning of various types information diverse needs, the author proposes an educational management platform using cloud computing technology. The introduces layered architecture advantages Combining technology with characteristics construction platforms in colleges universities, B/S is established, model based on designed; includes user access l...

Abstract Data security is being one of the most crucial aspects to be focused on system development. However, using such a feature enhance data might affect system's performance. This study aims observe how substantial Transparent Encryption as solution for Microsoft SQL Server will database management Each performance conducted with stress and load test. paper concentrates upsides over standar...

SQL injection is an attack methodology that targets the data residing in a database through the firewall that shields it. The attack takes advantage of poor input validation in code and website administration. SQL Injection Attacks occur when an attacker is able to insert a series of SQL statements in to a ‘query’ by manipulating user input data in to a web-based application, attacker can take ...

The SkyServer is an Internet portal to the Sloan Digital Sky Survey Catalog Archive Server. From 2001 to 2006, there were a million visitors in 3 million sessions generating 170 million Web hits, 16 million ad-hoc SQL queries, and 65 million page views. The site currently averages 35 thousand visitors and 400 thousand sessions per month. The Web and SQL logs are public. We analyzed traffic and ...

Hekaton is a new OLTP engine optimized for memory resident data and fully integrated into SQL Server; a database can contain both regular disk-based tables and in-memory tables. In-memory (a.k.a.Hekaton) tables are fully durable and accessed using standard T-SQL. A query can reference both Hekaton tables and regular tables and a transaction can update data in both types of tables. T-SQL stored ...

In a typical database application environment, emphasis has been given on promising Service level Agreements (SLAs) for perceived query elapsed response time; the SQL queries are tested on the small size of database at application developmentstage, which may be a fraction of the production database. As time progresses the database grows and the earlier optimized queries may not hold SLA anymore...

Automatically selecting an appropriate set of materialized views and indexes for SQL databases is a non-trivial task. A judicious choice must be cost-driven and influenced by the workload experienced by the system. Although there has been work in materialized view selection in the context of multidimensional (OLAP) databases, no past work has looked at the problem of building an industry-streng...

the font level tainting is the another new approach for preventing sql injection attacks, that involves comparing the meta strings library with the sql statements that includes the characters including the different font levels in the user input, to prevent them if found any and protecting the web applications against sql injection is discussed in this paper. this paper includes the strange ide...