Java class to connect to Oracle Database Express Edition11g and URL

Can I use Oracle SQL Developer to do or use it as the value of the URL for the host name?

I'm just starting to learn Java and with it, learn how to use the Oracle Database Express Edition11g and with it the Oracle SQL Developer...

At this point, I have the Express Edition is installed and the SQL Developer installed and were able to establish a connection and to run a query and get a result.

I use Eclipse for JAVA. I have a work of class that performs a query on a database/table in MySQL.

So now I'm eager to make the same use as the database Oracle Database Express Edition11g engine.

And this means that two different versions of JAVA that I need to get the right to be able to do.

The first is the value of the url variable.

I now like

String url = "jdbc:oracle:thin:@localhost";

then

Class.forName ("oracle.jdbc.OracleDriver");

and then

Connection connection = DriverManager.getConnection (url);

The thing I'm puzzled on is in the URL where I 'localhost' was supposed to be the term generic and not so much as the text, you should use.

I see in Web sites like 3 connection to Oracle Database XE

and decrease example 3-2 by specifying the URL of database using the XE Client Setup

There I see

JDBC:driver_type: [username/password] @[//]host_name[: port] [XE]]

And just what is and what is not is explained here. So what I ended up with was

String url = "jdbc:oracle:thin:@localhost";

So if it was just a text to rest for a name I wonder just such a value or name might really where.

I noticed that view that an app called "Oracle JDeveloper" has been used to create the values. I don't have such a thing, or at least I don't think I do.

Do I need?

I have Oracle SQL DEVELOPER, where I used the following to connect to the database of the XE.

My choice for Oracle's SQL Developer Help

Name of connection: Connection1

User name: Rod

Password: myOracle11

Host name: localhost

Port: 1521, which is the default value

SID: xe

Above so I have to host name set to localhost

Can I use Oracle SQL Developer to do or use it as the value of the URL for the host name?

1. I do nothing

2. While wouldn't you say it

3. no results from the earlier assignment.

I asked "'can I use Oracle SQL Developer to do or use it as the value of the URL for the host name?" "

I showed the choice that I used in SQL Developer to connect to the schema. And I was wondering, now that I had done this case those are the values that I could use in the Java class that I wrote. The web site in the first post of this thread showed connection but he was using JDeveloper and SQL Developer.

So I was wondering if the connection that I made using SQL Developer would do the same trick, and if I could use the values I did there.

I'm happy to announce that YES, The values used to connect using SQL Developer work exactly like JDeveloper.

So, given that in SQL Developer for Hostname I chose the value "localhost" "Rod" Username and password "myOracle11".

I did the following JAVA CLASS that worked:

package VC_2_9;

import java.sql. *;

public class DataBaseDemoOracle

{

Public Shared Sub main (string args [])

{

String CUST_LAST_NAME;

/ * String url = "jdbc:mysql://localhost/visualcafe"; */

String url = "JDBC: thin: @localhost';"

/ * String sqlQuery = "SELECT Name, SSNo, address, telephone OF THE customer; */

String sqlQuery = "SELECT CUST_LAST_NAME FROM DEMO_CUSTOMERS";

// |||||||||||||||

Try

{

Class.forName ("oracle.jdbc.OracleDriver");

Connection connection = DriverManager.getConnection (url, "Rod","myOracle11" ");

Statement statement = aConnection.createStatement ();

ResultSet rs = aStatement.executeQuery (sqlQuery);

Boolean more = rs.next ();

(more)

{

CUST_LAST_NAME = rs.getString (1);

/* */

System.out.println ("name:" + CUST_LAST_NAME);

more = rs.next ();

}

RS. Close();

aStatement.close ();

aConnection.close ();

}

catch (ClassNotFoundException e)

{System.out.println ("Exception caught" + e) ;}}

catch (SQLException e)

{If (e! = null)}

{System.out.println ("SQLException taking" + e);}

e = e.getNextException ();

} / / end of while loop

} / / end of capture

} / / main end

} / / end DataBaseDemoOracle.java

Tags: Java

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Error on Java class calling in the Oracle database

I have a java class indicated below:
/*
* To change this license header, choose license headers in the project properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package oracletree1;
import java.sql.Connection;
to import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
/**
*
* @author oracle
*/
public class TREEUPDATER {}
int levels;
int NodeId;
int ParentId;
String FatherID;
int ChildBed_new;
int ChildBes_new;
int ChildMande_new;
int ChildBed_old;
int ChildBes_old;
int ChildMande_old;
int ParentBed;
int ParentBes;
int ParentMande;
Script string;
String ValueState;
String TreeState;
Public TREEUPDATER() throws SQLException {}
}
public void update (levels int, int NodeIds, int childBed_old, int childBes_old, int childMande_old) throws SQLException {}
This. ChildBed_old = childBed_old;
This. ChildBes_old = childBes_old;
This. ChildMande_old = childMande_old;
This. Levels = levels;
This. NodeId = NodeIds;
String [] array;
try {}
Class.forName ("oracle.jdbc.driver.OracleDriver");
} catch (ClassNotFoundException e) {}
System.out.println ("where is your Oracle JDBC Driver?');
return;
}
System.out.println ("Oracle JDBC Driver registered!");
Fitting out = null;
try {}
connection = DriverManager.getConnection)
"jdbc:oracle:thin:@192.168.1.12:1521:orcl", "tree1"
'oracle');
} catch (SQLException e) {}
System.out.println ("connection failed! Check the console output");
return;
}
If (connection! = null) {}
Statement stmt = connection.createStatement ();
Instruction stmt2 = connection.createStatement ();
stmt.executeUpdate ("insert into test.java_test (id) values (21)" ");
ResultSet rs = stmt.executeQuery ("SELECT * from value" + "where nodeid =" + NodeId);
ResultSet rs2 = stmt.executeQuery ("select * from tree where id =" + NodeId);
While (RS. Next {}
This. FatherID = rs2.getNString("FatherID");
This. ChildBed_new = rs2.getInt ("bed");
This. ChildBes_new = rs2.getInt ("bes");
This. ChildMande_new = rs2.getInt ("control");
table = new String [100000];
Table = FatherID.split ("_");
for (int i = 0; i < array.length; i ++) {}
ResultSet rs3 = stmt2.executeQuery ("SELECT * from tree" + "where id =" + array [i]);
This. ParentId = rs3.getInt ("id");
This. ParentBed = rs3.getInt ("bed");
This. ParentBes = rs3.getInt ("bes");
This. ParentMande = rs3.getInt ("control");
connection.setAutoCommit (false);
ParentBed = ChildBed_new - ChildBed_old;
ParentBes = ChildBes_new - ChildBes_old;
This. TreeState = rs2.getNString ("state");
If (TreeState.equalsIgnoreCase ("BED")) {}
This. ParentMande = ParentBed - ParentBes;
} else {}
This. ParentMande = ParentBes - ParentBed;
}
This. Script = ("update the bed = bed set value +" + ParentBed + "and bes = bes +" + ParentBes + "and control = control +"+ ParentMande ")
+ ' where id = "+ ParentId);»
stmt2. ExecuteUpdate ("" + Script);
}
}
}
}
}
I have a main class, which show below:
/*
* To change this license header, choose license headers in the project properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package oracletree1;
import java.sql.SQLException;
/**
*
* @author oracle
*/
public class OracleTree1 {}
/**
@param args command-line arguments
*/
Public Shared Sub main (String [] args) throws SQLException {}
TODO logical application of the code here
TREEUPDATER t = new TREEUPDATER();
}
}
I was responsible for these classes in oracle database 11 g 2 and I want to use a trigger to execute the updating() method. If I created a procedure like this:
CREATE OR REPLACE PROCEDURE REPORT4
(
LEVELS IN NUMBERS
NODEID NUMBER
CHILDBED_OLD NUMBER
CHILDBES_OLD NUMBER
CHILDMANDE_OLD NUMBER
) AS
Name of the java LANGUAGE "TREEUPDATER.updating (1,2,3,4,5);
But when I want to compile and run this procedure, I get this error:
Error: PL/SQL: analysis of completed Compilation unit
Error (9,16): PLS-00311: the declaration of 'TREEUPDATER.updating' (1,2,3,4,5) is incomplete or incorrect
Can any one solve this?
Thank you

The correct syntax for PORCEDURE4 is:

No it's not. I already gave the correct syntax, which apparently ignored you.

I don't know how can pass these parameters to this method.

My question is clear?

It is clear that you are interested in reading the documentation. All the answers are there.

You're mixing two things:

(1) creating the procedure (once), and I already told you how to do it

(2) the procedure call

For 1)-do you only once :

CREATE OR REPLACE PROCEDURE REPORT4)

LEVELS IN NUMBERS

NODEID NUMBER

CHILDBED_OLD NUMBER

CHILDBES_OLD NUMBER

CHILDMANDE_OLD NUMBER

)

AS

JAVA LANGUAGE

NAME of ' oracletree1. TREEUPDATER.updating (int, int, int, int, int)';

For 2)-procedure call:

...

BEGIN

... of the code

-you call proc with your real settings:

procedure4 (v_levels, v_nodeid, v_childbed_old, v_childbes_old, v_childmande_old);

... rest of your code

END;

Pay attention to remarks from other institutions.

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Try to connect to Oracle Database XE Beta 11.2, the fields are workspace, user name and password. How will I know the workspace.

Thank you
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If you go to boot (http://127.0.0.1:8080/apex/f? p = 4950), should open the home page of the database.
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Java class to connect to Oracle Database Express Edition11g and URL

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