Win a copy of Svelte and Sapper in Action this week in the JavaScript forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Ron McLeod
  • Paul Clapham
  • Bear Bibeault
  • Junilu Lacar
Sheriffs:
  • Jeanne Boyarsky
  • Tim Cooke
  • Henry Wong
Saloon Keepers:
  • Tim Moores
  • Stephan van Hulst
  • Tim Holloway
  • salvin francis
  • Frits Walraven
Bartenders:
  • Scott Selikoff
  • Piet Souris
  • Carey Brown

how to fetch data from database

 
Greenhorn
Posts: 1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator


how to fetch data from database..?

just give me a simple example
 
Ranch Hand
Posts: 34
1
MyEclipse IDE Tomcat Server Java
  • Likes 1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
The following steps are required connect/select the Database JDBC application −

• Import the packages: Requires that you include the packages containing the JDBC classes needed for database programming. Most often, using import java.sql.* will suffice.
• Register the JDBC driver: Requires that you initialize a driver so you can open a communications channel with the database.
• Open a connection: Requires using the DriverManager.getConnection() method to create a Connection object, which represents a physical connection with a database server.
• Execute a query: Requires using an object of type Statement for building and submitting an SQL statement to select (i.e. fetch ) records from a table.
• Extract Data: Once SQL query is executed, you can fetch records from the table.
• Clean up the environment: Requires explicitly closing all database resources versus relying on the JVM's garbage collection.

You will get lot of example in online but all should have above steps in the program.  
 
Greenhorn
Posts: 14
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator

Ravi Shankar Kumar wrote:The following steps are required connect/select the Database JDBC application −

• Import the packages: Requires that you include the packages containing the JDBC classes needed for database programming. Most often, using import java.sql.* will suffice.
• Register the JDBC driver: Requires that you initialize a driver so you can open a communications channel with the database.
• Open a connection: Requires using the DriverManager.getConnection() method to create a Connection object, which represents a physical connection with a database server.
• Execute a query: Requires using an object of type Statement for building and submitting an SQL statement to select (i.e. fetch ) records from a table.
• Extract Data: Once SQL query is executed, you can fetch records from the table.
• Clean up the environment: Requires explicitly closing all database resources versus relying on the JVM's garbage collection.

You will get lot of example in online but all should have above steps in the program.  



good answer bro..... i think he give you exactly what you need.
 
Saloon Keeper
Posts: 22503
151
Android Eclipse IDE Tomcat Server Redhat Java Linux
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
https://docs.oracle.com/javase/tutorial/jdbc/basics/connecting.html

Note that you do not have to register a driver anymore. The practice of using Class.forName to load and register JDBC drivers has been obsolete for a very long time now. All up-to-date JDBC drivers register themselves automatically.
 
If you like strawberry rhubarb pie, try blueberry rhubarb (bluebarb) pie. And try this tiny ad:
the value of filler advertising in 2020
https://coderanch.com/t/730886/filler-advertising
    Bookmark Topic Watch Topic
  • New Topic