Solution in Font

Making PDF 417 in Font Solution

Solution
PDF 417 Creator In None
Using Barcode generator for Font Control to generate, create PDF 417 image in Font applications.
www.OnBarcode.com
Encode Code 128 In None
Using Barcode printer for Font Control to generate, create Code128 image in Font applications.
www.OnBarcode.com
The following code shows how to create a scrollable and updatable ResultSet object using PreparedStatement: ResultSet rs = null; Connection conn = null; PreparedStatement pstmt = null; String authorLastName = "Knuth"; try { conn = getConnection(); // get-a-valid-connection; ... // prepare SQL query String query = "select isbn from books_table where author = "; // create a PreparedStatement object for // a scrollable, updatable ResultSet pstmt = conn.prepareStatement(query, ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE); // fill in input parameters pstmt.setString(1, authorLastName); // execute query, and create the ResultSet rs = pstmt.executeQuery(); // position the cursor at the end of the ResultSet rs.afterLast(); // Position the cursor backward while (rs.previous()) { String bookISBN = rs.getString(1); System.out.println("bookISBN= " + bookISBN); // Look for isbn 1122334455 if (bookISBN.equals("1122334455")) { updateBookTitle("1122334455","new title"); updateTheRow(); } }
Creating UPC-A Supplement 2 In None
Using Barcode generation for Font Control to generate, create Universal Product Code version A image in Font applications.
www.OnBarcode.com
Painting Code 3/9 In None
Using Barcode generation for Font Control to generate, create Code39 image in Font applications.
www.OnBarcode.com
CHAPTER 12 WORKING WITH THE PREPAREDSTATEMENT
Barcode Generator In None
Using Barcode creator for Font Control to generate, create Barcode image in Font applications.
www.OnBarcode.com
EAN-13 Supplement 5 Generator In None
Using Barcode encoder for Font Control to generate, create GS1 - 13 image in Font applications.
www.OnBarcode.com
} catch(SQLException e) { // handle the exception e.printStacktrace(); ... } finally { // cleanup time // close ResultSet, Statement, and Connection objects }
PDF 417 Maker In None
Using Barcode generation for Font Control to generate, create PDF417 image in Font applications.
www.OnBarcode.com
Create MSI Plessey In None
Using Barcode creation for Font Control to generate, create MSI Plessey image in Font applications.
www.OnBarcode.com
12-14. How Do You Create a Scrollable ResultSet Object
PDF 417 Maker In Java
Using Barcode encoder for Java Control to generate, create PDF417 image in Java applications.
www.OnBarcode.com
Print PDF417 In Java
Using Barcode drawer for Android Control to generate, create PDF417 image in Android applications.
www.OnBarcode.com
The following sections show how to create a scrollable ResultSet using a PreparedStatement object.
ECC200 Recognizer In Visual Basic .NET
Using Barcode scanner for VS .NET Control to read, scan read, scan image in Visual Studio .NET applications.
www.OnBarcode.com
Paint Code-128 In Java
Using Barcode generation for Java Control to generate, create Code 128 image in Java applications.
www.OnBarcode.com
How It Works
PDF417 Recognizer In Visual Studio .NET
Using Barcode recognizer for .NET framework Control to read, scan read, scan image in Visual Studio .NET applications.
www.OnBarcode.com
Decoding EAN-13 Supplement 5 In Visual Basic .NET
Using Barcode recognizer for VS .NET Control to read, scan read, scan image in .NET framework applications.
www.OnBarcode.com
When you use Connection.prepareStatement(), it creates a PreparedStatement object, which can create result set objects that are scrollable. By passing some parameters, you can create scrollable result sets. A scrollable result set allows the cursor to be moved to any row in the result set. This capability is useful for GUI tools for browsing result sets.
Reading Code-39 In VB.NET
Using Barcode recognizer for .NET framework Control to read, scan read, scan image in .NET framework applications.
www.OnBarcode.com
PDF 417 Drawer In None
Using Barcode creator for Online Control to generate, create PDF-417 2d barcode image in Online applications.
www.OnBarcode.com
Solution
Making UPC - 13 In VS .NET
Using Barcode creation for Visual Studio .NET Control to generate, create EAN 13 image in VS .NET applications.
www.OnBarcode.com
QR Code Generator In .NET
Using Barcode drawer for ASP.NET Control to generate, create Denso QR Bar Code image in ASP.NET applications.
www.OnBarcode.com
The following example shows how to create an insensitive scrollable ResultSet: ResultSet rs = null; Connection conn = null; PreparedStatement pstmt = null; try { conn = getConnection(); // get-a-connection-object // create a statement that creates // insensitive scrollable result set String query = "SELECT last_name FROM employee_table where first_name = "; pstmt = conn.prepareStatement( query, ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY); // fill in all input parameters pstmt.setString(1, "alex"); // create a result set rs = pstmt.executeQuery(); // iterate the ResultSet object and get all of the data while (rs.next()) { String lastName = rs.getString(1); } } catch (SQLException e) { // could not create a PreparedStatement object, // or other problems happened. // handle the exception }
EAN13 Creation In VB.NET
Using Barcode creation for .NET framework Control to generate, create EAN-13 Supplement 5 image in .NET applications.
www.OnBarcode.com
Barcode Creator In Visual Basic .NET
Using Barcode encoder for .NET framework Control to generate, create Barcode image in .NET applications.
www.OnBarcode.com
CHAPTER 12 WORKING WITH THE PREPAREDSTATEMENT
finally { // cleanup time // close Connection object // close PreparedStatement object // close ResultSet object } The following example shows how to create a sensitive scrollable ResultSet: ResultSet rs = null; Connection conn = null; PreparedStatement pstmt = null; try { conn = getConnection(); // get-a-connection-object // create a statement that creates // a sensitive scrollable result set String query = "SELECT last_name FROM employee_table where first_name = "; pstmt = conn.prepareStatement( query, ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_READ_ONLY); // fill in all input parameters pstmt.setString(1, "alex"); // create a result set rs = stmt.executeQuery(); // iterate the ResultSet object, and get all the data while (rs.next()) { String lastName = rs.getString(1); } } catch (SQLException e) { // could not create a PreparedStatement object, // or other problems happened. // handle the exception } finally { // cleanup time // close Connection object // close PreparedStatement object // close ResultSet object }
Discussion
Before creating scrollable ResultSet objects, you need to determine whether your database supports them. A scrollable ResultSet allows the cursor to move to any row in the result set. Two types of scrollable result sets exist. An insensitive scrollable result set is one where the values captured in the result set never change, even if changes are made to the table from which the data was retrieved. A sensitive scrollable result set is one where the current values in the table are reflected in the result set. So, if a change is made to a row in the table, the result set will show the new data when the cursor is moved to that row.
CHAPTER 12 WORKING WITH THE PREPAREDSTATEMENT
The following code can check whether your database supports scrollable ResultSet objects: Connection conn = null; try { conn = getConnection(); // get-a-connection-object DatabaseMetaData dbmd = conn.getMetaData(); if (dbmd == null) { // database metadata NOT supported... // you should throw an exception or...stop here } if (dbmd.supportsResultSetType(ResultSet.TYPE_SCROLL_INSENSITIVE)) { // insensitive scrollable result sets are supported } if (dbmd.supportsResultSetType(ResultSet.TYPE_SCROLL_SENSITIVE)) { // Sensitive scrollable result sets are supported } if (!dbmd.supportsResultSetType(ResultSet.TYPE_SCROLL_INSENSITIVE) && !dbmd.supportsResultSetType(ResultSet.TYPE_SCROLL_SENSITIVE)) { // updatable result sets are not supported } } catch (SQLException e) { // handle the exception } finally { // cleanup time // close Connection object }
Copyright © OnBarcode.com . All rights reserved.