java类库详细讲解

				
				
				
				Getting a VARRAY Value from an Oracle Table
				(Java Developers Almanac Example)
				
				
				
				
				
				
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				The Java Developers Almanac 1.4
				
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				    java.sql
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				        Oracle VARRAYs
				             [4 examples]
				            
				
				  
				    e304.  
				    Getting a VARRAY Value from an Oracle Table
				
				This example retrieves values contained in an Oracle VARRAY type.  The
				example uses the table and array type created in
				e301 Creating a VARRAY Type in an Oracle Database.
				
				
				
				
				    try {
				        // Create a statement
				        Statement stmt = connection.createStatement();
				    
				        // Select rows from varray_table
				        ResultSet resultSet = stmt.executeQuery("SELECT * FROM varray_table");
				    
				        // Get the VARRAY values from each row
				        while (resultSet.next()) {
				            // Get the VARRAY value in the first column
				            oracle.sql.ARRAY array = ((oracle.jdbc.driver.OracleResultSet)resultSet).getARRAY(1);
				    
				            // Get the VARRAY elements; values.length is the number of values in the VARRAY
				            java.math.BigDecimal[] values = (java.math.BigDecimal[])array.getArray();
				        }
				    } catch (SQLException e) {
				    }
				
				
				
				
				             Related Examples
				        
				
				
				
				
				e301. 
				    Creating a VARRAY Type in an Oracle Database
				
				
				
				e302. 
				    Inserting a VARRAY Value into an Oracle Table
				
				
				
				e303. 
				    Inserting a VARRAY Value into an Oracle Table Using a Prepared Statement
				
				
				
				
				
				
				
				
				        See also: 
				
				    Batching
				  
				
				
				    Connections
				  
				
				
				    Database Meta Data
				  
				
				
				    Deleting Data
				  
				
				
				    Drivers
				  
				
				
				    Importing and Exporting
				  
				
				
				    Inserting and Updating Data
				  
				
				
				    Oracle OBJECTs
				  
				
				
				    Procedures and Functions
				  
				
				
				    Retrieving Data
				  
				
				
				    Scrollable Result Sets
				  
				
				
				    Tables
				  
				
				
				    Updatable Result Sets
				  
				
				
				
				
				
				
				
				
				
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