nc and the cluster coupling index cci

Java Data Access—JDBC, JNDI, and JAXP phần 4 docx

Ngày tải lên : 14/08/2014, 06:21

... Chapter 6: Working with Result Sets Concurrency is the ability to share and update information in the database with other users at the same time You will face concurrency issues when you start allowing ... optimistic Pessimistic concurrency assumes a lot of activity and locks the data being updated, which prevents others from updating the same data at the same time Optimistic concurrency assumes little ... is, SQL92) and the advanced data types (SQL3) The JDBC API defines support for both The following sections provide information about the data types and how to access them using Java Standard SQL...

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Java Data Access—JDBC, JNDI, and JAXP phần 5 ppt

Ngày tải lên : 14/08/2014, 06:21

... methods in Java Command Allows an object to encapsulate a command as an object and send it to the Command object The Command object is responsible for dispatching the command to the appropriate object ... the class hierarchy for the example The base class is a Fruit and the two subclasses are Apple and Orange That is, Apple and Orange are of type Fruit because they extend the Fruit class and thereby ... classes, and then derive your classes from them and provide method implementations in the subclasses The client will declare variables of the interface type or the base class, and use references to the...

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Database Access with JDBC ppt

Ngày tải lên : 23/03/2014, 16:20

... Step 1: Load the Driver • Not required in Java – In Java SE 6.0 and later (JDBC 4.0 and later), the driver is loaded automatically • Java and earlier – Load the driver class only The class has ... Services, Hadoop, Android Developed and taught by well-known author and developer At public venues or onsite at your location JDBC and Derby References • Books – JDBC API Tutorial and Reference by Maydene ... Creating the Database • Roles – Most JDBC developers not need to create the database – That is the job of the database system admin • Apache Derby – You can run Derby-specific scripts and create the...

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Java Database Programming with JDBC docx

Ngày tải lên : 23/03/2014, 16:21

... another? Since we used the reference of the employee number in the CONFIDENTIAL table from the EMPLOYEE table, we can specify the employees that match a specified department, and then use the ... used in the operation of the Internet, are tied into the design of the JDBC The other dominant design basis for the JDBC is the database standard known as SQL Hence, the JDBC is a fusion of three ... Chapter 4 The Interactive—SQL Applet Your First JDBC Applet The Blueprint Getting A Handle On The JDBC Essentials: The Complete Applet Source Code The Look Of The Applet Handling Events Opening The...

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o'reilly - database programming with jdbc and java 2nd editi

Ngày tải lên : 25/03/2014, 10:41

... 'alternative' AND bands.band_id = albums.band_id The newest thing you will notice here is the prefixing of table names before the column names You need to take this step since you relate the albums and bands ... though the feature should be added soon SELECT title FROM albums, WHERE band_id IN (SELECT bands.band_id FROM bands, band_musician WHERE band_musician.musician_id = AND bands.band_id = band_musician.band_id) ... Limited is band ID 5, and the Sex Pistols are band ID 6, the band_musician table would look like Table 2.3 Table 2.3, A Portion of the band_musician Table Band ID Musician ID 2 page 18 JDBC and Java...

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Database Programming with JDBC and Java docx

Ngày tải lên : 27/06/2014, 11:20

... 'alternative' AND bands.band_id = albums.band_id The newest thing you will notice here is the prefixing of table names before the column names You need to take this step since you relate the albums and bands ... though the feature should be added soon SELECT title FROM albums, WHERE band_id IN (SELECT bands.band_id FROM bands, band_musician WHERE band_musician.musician_id = AND bands.band_id = band_musician.band_id) ... Limited is band ID 5, and the Sex Pistols are band ID 6, the band_musician table would look like Table 2.3 Table 2.3, A Portion of the band_musician Table Band ID Musician ID 2 page 18 JDBC and Java...

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database programming with jdbc and java phần 2 docx

Ngày tải lên : 12/08/2014, 16:21

... result sets and I was one of them—argued that they were antithetical to object-oriented programming and that they violated the rule that complex functionality should not encumber the most commonly ... charset); The doGet() method gets the output stream and localization information and then prints the top of the page, followed by a visitor comment entry form, a random set of visitor comments, and the ... Java experience, you should be able to understand the flow of the code in Example 3.1 without knowing any JDBC Other than the string that loads the mSQL-JDBC driver, there are no references to specific...

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database programming with jdbc and java phần 4 pptx

Ngày tải lên : 12/08/2014, 16:21

... the arguments to the method and sends them across the network to the skeleton object on the server In other words, it marshals the method parameters and sends them to the server The skeleton object, ... for the RowSet The password and username attributes specify the username and password to use for the database connection Finally, the command attribute specifies what command to send to the data ... takes the raw data from the network, translates it into Java objects, and then calls the proper method in the remote object The skeleton and stub perform the reverse roles for return values The...

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database programming with jdbc and java phần 5 pot

Ngày tải lên : 12/08/2014, 16:21

... sequence for the specified sequence in accordance with * the SequenceGenerator interface * @param seq the name of the sequence to generate * @return the next value in the sequence ... object's state and safely passing it around The advantage of the memento pattern is that it enables you to modify the beans and the persistence handlers independent of one another A change to the bean ... regard to their being But if they are to exhibit the characteristics of their being without falsification, they must for their part have become accessible in advance as they are in themselves The question...

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database programming with jdbc and java phần 6 pdf

Ngày tải lên : 12/08/2014, 16:21

... make them persist beyond the lifecycle of the process in which they are created Persistence is the act of making the state of an application stretch through the end of this process instance of the ... of criteria Asking another related component for a reference to it The last scenario is the simplest and begs the question of the other two Specifically, given a reference to a Customer component, ... transaction, the Transaction class then goes through all of the modified objects and makes sure that their new state is saved to the persistent data store Among the complexities the Transaction...

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database programming with jdbc and java phần 7 doc

Ngày tải lên : 12/08/2014, 16:21

... first and last name All other methods in the class basically support the SQL building: the getWhere() providing the WHERE clause and the getOrder( ) supporting any potential ORDER BY clause Once the ... time on the entity with the last modification time on the façade If the two differ, the façade throws a PropertyChangeEvent The challenge for the listener is to handle the event inside the Swing ... cls the reference class name * @param vals the initial cache values * @return an instance of the reference class pointing to the specified * object * @throws com.imaginary.lwp.FindException the...

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database programming with jdbc and java phần 10 docx

Ngày tải lên : 12/08/2014, 16:21

... SQL command with the current set of bindings getCommand( ) and setCommand( ) public String getCommand( ); public void setCommand(String sql) throws java.sql.SQLException; Description These methods ... in the book While the JDBC Optional Package does specify their existence, they are not used by application developers They are instead used by driver implementors Figure 12.1 shows all of the ... java.sql.SQLException; Description These methods enable you to control whether or not this rowset should be read-only setConcurrency public void setConcurrency(int cncr) throws java.sql.SQLException;...

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