JDBC Metadata, MySQL, and Oracle Recipes: A Problem-Solution by Mahmoud Parsian

By Mahmoud Parsian

First ebook to marketplace on metadata particular recipes regarding JDBC and its use with MySQL and Oracle, databases ordinary to Java.

Compliant with the hot Java EE 5.

Provides reduce and paste code templates that may be instantly personalized and utilized in every one developer’s program development.

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Example text

Figure 2-1. 5, the DatabaseMetaData allows you to obtain information about the database and has over one hundred methods. html. To obtain a DatabaseMetaData object, use these general steps: 1. Connect to a database by using an instance of the Connection object. 2. To find out the names of the database schema, tables, and columns, get an instance of the DatabaseMetaData object from the Connection. 3. Perform the actual query by issuing a SQL query string. Then use the Connection to create a Statement class to represent your query.

However, there is another important class of database access where an application (or an application builder) dynamically (in other words, at runtime) discovers the database schema information and uses that information to perform appropriate dynamic data access. This chapter describes the JDBC support for dynamic access. A dynamic database access application may include building dynamic queries, dynamic browsers, and GUI database adapters, just to mention a few. 2. What Is Database Metadata? The database has emerged as a major business tool across all enterprises, and the concept of database metadata has become a crucial topic.

List, where each element will be a keyword. You can try the following two solutions for this problem. List object, where each element is a SQL keyword (as a String object). The second solution returns the result as XML. *; /** * Get the SQL keywords for a database. Connection object. * @return the list of SQL keywords for a database. * Each element in the list is a SQL keyword. * @exception Failed to get the SQL keywords for a database. *; /** * Get the SQL Keywords for a database. * @param conn the Connection object.

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