Simple .NET/ASP.NET PDF document editor web control SDK

Procedure created. The procedure, demo_refcursor, demonstrates how the same ref cursor variable can be dynamically associated with a different cursor based on the user input. The procedure takes a query selector and a criterion, and returns a ref cursor in its third parameter, which is declared using the built-in PL/SQL data type sys_refcursor. In lines 4 through 6, we use the %type construct to declare variables whose types are anchored to the emp table column types. Based on the value of the query selector, the procedure opens and returns a different cursor, and uses the passed criterion in the query s where clause. We can now fetch these cursors as ResultSet objects using the CallableStatement interface in JDBC and print them out. The following DemoRefCursor class does this: /** This program simply prints out a ref cursor, which points to a different query based on passed criteria * COMPATIBLITY NOTE: * runs successfully against 9.2.0.1.0 and 10.1.0.2.0 */ import java.sql.SQLException; import java.sql.ResultSet; import java.sql.Connection; import java.sql.CallableStatement; import oracle.jdbc.OracleTypes; import book.util.JDBCUtil; class DemoRefCursor { public static void main(String args[]) throws Exception { Connection conn = null; CallableStatement cstmt = null; ResultSet rset = null; The first command-line parameter to the class is the database name, the second parameter is the criterion (which becomes the first parameter of the procedure demo_refcursor), and the third parameter is the bind value to the dynamically generated ref cursor s query (which becomes the second parameter to the procedure demo_refcursor). We simply execute the procedure demo_refcursor in the following code, passing the appropriate parameters: try { // get connection - auto commit is off conn = (Connection) JDBCUtil. getConnection("scott", "tiger", args[0]); String stmtString = "{call demo_refcursor( , , ) }"; cstmt = conn.prepareCall( stmtString ); cstmt.setString( 1, args[1] ); // criterion

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And again, you re affecting the runtime behavior of your type without touching the imperative code Declarative coding and AOP are worth knowing about Realize what they are and pay attention to the tools (NET 20, Windows Communication Foundation, Windows Presentation Foundation, Windows Vista) coming out over the next few years, because these models are really going to come to the fore..

Types that define culture-related information, including the language, the country/region, the calendars in use, the format patterns for dates, the currency, the numbers, and the sort order for strings Not covered in this book Types that allow reading and writing files and data streams, as well as types that provide basic file and directory support See 4 for a basic overview Types for playing and accessing sounds and other media formats Not covered in this book NET 30 and later Types to programmatically access many of the protocols used on modern networks See s 2 and 14 for examples and a basic overview Types that retrieve information about assemblies, modules, members, parameters, and other entities in managed code See 9 for a brief overview Types for generating NET code dynamically at run time Types that allow developers to create, store, and manage various culture-specific resources used in an application.