ean 128 word 2007

word 2010 ean 128

police word ean 128

police word ean 128

how to make barcodes in microsoft word 2010, word 2007 code 128, word 2013 code 39, data matrix word 2010, ean 128 word 2007, word ean 13, qr code generator for word mail merge, word aflame upc

word 2013 ean 128,
word gs1 128,

ean 128 word 2007,
word 2010 ean 128,
gs1-128 word,
ean 128 word 2007,
word gs1 128,
word gs1 128,
word 2013 ean 128,
word 2010 ean 128,
word ean 128,
ean 128 word 2007,

word gs1 128,
word 2010 ean 128,
word 2010 ean 128,
word 2013 ean 128,
word ean 128,
word 2010 ean 128,
gs1-128 word,
word 2010 ean 128,
ean 128 word 2007,
word 2010 ean 128,
ean 128 word font,
ean 128 word font,
word gs1 128,
word gs1 128,
word 2010 ean 128,
word gs1 128,
ean 128 word 2007,
ean 128 word 2007,
ean 128 word font,

word 2013 ean 128,
ean 128 word 2007,
gs1-128 word,
word 2013 ean 128,
word gs1 128,
gs1-128 word,
word gs1 128,
police word ean 128,
word 2010 ean 128,
word gs1 128,
gs1-128 word,
word gs1 128,
word 2013 ean 128,
ean 128 word 2007,
gs1-128 word,
word 2010 ean 128,
word gs1 128,
ean 128 word 2007,
police word ean 128,
ean 128 word 2007,
ean 128 word font,
word ean 128,
ean 128 word 2007,
police word ean 128,
ean 128 word 2007,
ean 128 word 2007,
word gs1 128,
ean 128 word font,
word gs1 128,
word 2010 ean 128,
ean 128 word 2007,
word 2010 ean 128,
ean 128 word font,
gs1-128 word,
ean 128 word 2007,
ean 128 word 2007,
police word ean 128,
word gs1 128,
ean 128 word 2007,
ean 128 word 2007,
word 2013 ean 128,
word 2010 ean 128,
police word ean 128,
ean 128 word font,
word gs1 128,
gs1-128 word,
police word ean 128,
gs1-128 word,

Before you can connect to a database, you have to select the appropriate drivers. Oracle provides four major kinds of JDBC drivers: JDBC thin driver: This pure Java client based driver provides a direct connection to the database using the TCP/IP protocol. The driver requires a listener and uses sockets for making connections to databases. JDBC OCI driver: This driver needs a client installation of Oracle, so it is specific to Oracle. This driver is highly scalable and can use connection pooling to serve large numbers of users. JDBC server-side thin driver: Running on the server, this driver connects to remote databases and provides the same functionality as the client-based thin driver. JDBC server-side internal driver: As its name indicates, this driver resides on the server and is used by the Java Virtual Machine (JVM) to talk to the Oracle database server. Once you choose a specific type of JDBC driver, you must specify the JDBC driver in one of two ways: use the static registerDriver() method of the JDBC DriverManager class, or use the forName() method of the java.lang class. Here are the two methods of specifying the JDBC driver: DriverManager.registerDriver ("new oracle.jdbc.OracleDriver()"); and Class.forName("oracle.jdbc.driver.OracleDriver") Once you ve loaded the JDBC driver, it s time to make the connection to the database by using the static getConnection() method of the DriverManager class. This will create an instance of the JDBC connection class. Listing 11-7 shows the code for doing this. Listing 11-7. Making the Database Connection connection conn=DriverManager.getConnection( "jdbc:oracle:thin:@prod1:1521:finprod", username, passwd); /* Here's what the different parts of the connection object stand for: */ jdbc=protocol oracle=vendor thin=driver prod1=server 1521=port number finprod=Oracle database username=database username password=database password If all your information is valid, you are connected to the database from your Java application.

Now that you ve learned how to connect to the database using JDBC, it s time to find out how you can process SQL statements in the database through the JDBC connection. You can t execute SQL directly from your Java program. First you need to create JDBC statements, and then you need to execute your SQL statements. Let s look at these two steps in detail.

public class FormMain : System.Windows.Forms.Form { // OrderSystem orderSystem = new OrderSystem(); public FormMain() { InitializeComponent(); comboBoxColors.Items.Add("White"); comboBoxColors.SelectedIndex = 0; columnHeaderOptions.Width = -2; DisplayQueuedMessages(); } // auto size last column

To relay your SQL statements to the database, you need to create a JDBC Statement object. This object will associate itself with an open connection and henceforth act as the conduit through which SQL statements are transferred from the Java program to the database for execution. Here s how you create the JDBC Statement object: statement stmt = conn.createStatement(); No SQL statements are associated with the stmt object. However, under the Statement class, there is another object called PreparedStatement that always contains a SQL statement in addition to being the channel for the statement s execution. This SQL statement is compiled immediately, and it can be compiled just once and used many times thereafter, which is a great benefit. For simplicity, however, I ll just use the Statement object in this discussion. Let s now turn to the execution of SQL statements.

You can understand JDBC SQL statements if you separate the SELECT statements that query the database from all the other statements. Unlike the others, SELECT statements don t change the state of the database. Let s first look at how to deal with query statements.

SELECT statements use the executeQuery() method to get the query results. The method returns the results in the ResultSet object. Listing 11-8 shows an example. Listing 11-8. Getting the Query Results string first_name,last_name,manager; number salary; resultSet rs = stmt.executeQuery("SELECT * FROM Employees"); while (rs.next()) { first_name = rs.getString("first_name"); last_name = rs.getString("last_name"); manager = rs.getString("manager"); salary = rs.getNumber("salary"); system.out.println(first_name + last_name "works for" Manager "salary is:" salary."); Note that rs is an instance of the resultSet object, and it holds the query results. The resultSet object also provides a cursor, so you can access the results one by one. Each time you invoke the resultSet method, the cursor moves to the next row in the result set.

[STAThread] static void Main() { Application.Run(new FormMain()); } private void buttonGetModels_Click(object sender, System.EventArgs e) { string[] models = orderSystem.GetModels(); comboBoxModels.Items.Clear(); if (models == null) return; foreach (string model in models) comboBoxModels.Items.Add(model); comboBoxModels.SelectedIndex = 0; }

Any statement that changes the state of the database be it a DDL statement or a DML statement such as INSERT, UPDATE, or DELETE is executed using the executeUpdate() method. Note that the word update in the method name indicates that the SQL statement will change something in the database. Here are some examples of executeUpdate() statements: statement stmt = conn.createStatement(); stmt.executeUpdate("CREATE TABLE Employees" +

"(last_name VARCHAR2(30), first_name VARCHAR2(20), manager VARCHAR2(30), salary(number"); stmt.executeUpdate("INSERT INTO Employees " + "VALUES ('Alapati', 'Valerie', 'Shannon', salary)"); The preceding statements create the Statement object, and then they create a table and insert some data into it. All your normal SQL transaction properties, such as consistency and durability, are maintained when you use JDBC to execute SQL statements. By default, each statement commits after its execution because the value of conn.setAutoCommit() is set to true, as you can see in the following example. You can ensure that there is a commit after every statement in either of the following ways (and if you wish, you can also use the conn.rollback() method to roll back a statement): conn.setAutoCommit(false); or conn.commit(); Here s a simple example that shows how to use the commit() and rollback() statements: conn.setAutoCommit(false); Statement stmt = conn.createStatement(); stmt.executeUpdate("INSERT INTO employees VALUES('Alapati','Valerie','Nicholas',50000 )"); conn.rollback(); stmt.executeUpdate("INSERT INTO employees VALUES('Alapati','Nina','Nicholas',50000)"); conn.commit();