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This gave him the ability to select from any table in the database Now, you ve added another 5 tables with more sensitive data that shouldn t be available to this customer You rush back to your desk and quickly revoke his SELECT privileges and grant SELECT on the original 18 tables, hoping that the sensitive data hasn t been exposed End users whether employees, customers, students, clients, or any other number of users rely on their data being available when they need it, accurate in that it has been stored correctly and hasn t been tampered with, and protected in the sense that only the right people will be able to see their data A compromise of data in any of these ways leads to lack of trust from those who store and use data in your system.

If this type of UI, you need to show different content in a region of the form (usually a panel) as the user moves from one step (or page ) to the next 10 presented a solution to this problem that makes use of user controls Drawing and diagramming tools Most drawing tools don t just paint static content Instead, they let users create independent objects (ranging from lines of texts to geometric shapes) If you re creating an application like this, you ll want to consider custom drawing or owner-drawn controls (as demonstrated in 24) Code that dynamically creates a user interface is almost always more work to create and more difficult to maintain But as you ll see in this chapter, a dynamic interface also can result in an application that s much more flexible and much more adaptable to different needs and changing content..

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When discussing dynamic interfaces, it s often useful to draw a distinction between those that simply tailor the content of existing controls and those that actually create and add new controls. The first case dynamic content is obviously simpler and can appear in just about any situation. Some examples include applications that need to be localized or configured for different sets of users, or applications that are heavily data-driven (like a program for browsing an online product catalog).

In addition, a flaw in the protection of data can lead to long interruptions in business processes, and wasted employee time and company funds while data integrity issues are resolved In writing a chapter on database security, we don t want to just provide a seemingly endless list of random thoughts on how to secure your system We don t want to shake our finger at you, delivering yet another security lecture Unfortunately, the list of things to consider when securing your database is hard to avoid, and we ll end up there eventually But we want to spend some time focusing on the reasons behind the emphasis on using secure practices Therefore, we ll begin by addressing some broad questions about security Then we ll look at some critical items related to MySQL security, followed by a scenario with specifics on how you might implement a security plan.

//Comment out Microsoft.Practices.EnterpriseLibrary.Data.Oracle since the Oracle //classes might conflict with the ones in Oracle.DataAccess.Client due to similar //naming //COMMENTED OUT : using Microsoft.Practices.EnterpriseLibrary.Data.Oracle; using Microsoft.Practices.EnterpriseLibrary.Data.Properties; using Microsoft.Practices.EnterpriseLibrary.Data.Sql; namespace Microsoft.Practices.EnterpriseLibrary.Data { /// <summary> /// <para>Represents a view for navigating the <see cref="DatabaseSettings"/> /// configuration data.</para> /// </summary> public class DatabaseConfigurationView { private static readonly DbProviderMapping defaultSqlMapping = new DbProviderMapping(DbProviderMapping.DefaultSqlProviderName, typeof(SqlDatabase)); private static readonly DbProviderMapping defaultOracleMapping = new DbProviderMapping(DbProviderMapping.DefaultOracleProviderName, typeof(Microsoft.Practices.EnterpriseLibrary .Data.Oracle.OracleDatabase)); private static readonly DbProviderMapping defaultOracleNETMapping = new DbProviderMapping(DbProviderMapping.DefaultOracleNETProviderName, typeof(Microsoft.Practices.EnterpriseLibrary.Data. OracleNET.OracleNETDatabase)); private static readonly DbProviderMapping defaultGenericMapping = new DbProviderMapping(DbProviderMapping.DefaultGenericProviderName, typeof(GenericDatabase)); private readonly IConfigurationSource configurationSource; Listing 13-7. Adding the Entry for the ODP.NET DAO in the DatabaseConfigurationView.cs File

One of the simplest examples of dynamic content is the average About box (shown in Figure 21-1). It rarely makes sense to hard-code information like a program s version directly into the user interface of a window, because it cannot be guaranteed to remain correct (and it can be extremely tedious to synchronize if you use auto-incrementing version numbers). Instead, this information should be retrieved dynamically: lblProductName.Text = Application.ProductName; lblProductVersion.Text = "Version: " + Application.ProductVersion.ToString(); lblPath.Text = "Executing in: " + Application.ExecutablePath;

Finally, we ll address the different parts of a system that affect the database and offer suggestions for securing those parts In this chapter, we ll cover the following topics: Common reasons for security problems Biggest security threats Security policy and plan implementation A MySQL security quick list An example of implementing a security plan Security for each part of a system.

private DbProviderMapping GetDefaultMapping(string name, string dbProviderName)

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