Yorakb

Update table with the content of another table

yorakb — Thu, 17 Nov 2011 16:10:11 +0000

Data model :

CREATE TABLE T05_SQLS (
ID integer ,
SQL_ID VARCHAR2(13),
TEXT VARCHAR2(4000)
)

CREATE TABLE T05_SQLS_STAGING (
SQL_ID VARCHAR2(13),
TEXT VARCHAR2(4000)
)

To update the text column of T05_SQLS from T05_SQLS_STAGING if the text column is null :


    update t05_sqls t05 set t05.text = (
      select t05s.text from t05_sqls_staging t05s where t05s.sql_id = t05.sql_id
    ) where exists (
        select 1 from t05_sqls_staging t05s where t05s.sql_id = t05.sql_id
    ) and nvl(t05.text,'_') = '_';

Secure remote EJB and RichFaces with NetBeans 6.9.1 and Glassfish 2.1.1

yorakb — Sat, 11 Dec 2010 13:58:49 +0000

Create a web application project in NetBeans :

select “use dedicated folder for shared lib” .\lib
select JSF framework

In the lib directory, create a richfaces folder containing the following jar :

commons-beanutils-1.7.0.jar
commons-collections-3.2.jar
commons-digester-1.8.jar
commons-logging-1.0.4.jar
jhighlight-1.0.jar
richfaces-api-3.3.3.Final.jar
richfaces-impl-3.3.3.Final.jar
richfaces-impl-jsf2-3.3.3.Final.jar
richfaces-ui-3.3.3.Final.jar

In the lib directory, create an folder containing the following jar coming from the glassfish lib directory :

appserv-admin.jar
appserv-deployment-client.jar
appserv-rt.jar
javaee.jar

Edit the nblibraries.properties file the lib directory and add the following lines :

libs.richfaces.classpath=\
${base}/richfaces/commons-beanutils-1.7.0.jar;\
${base}/richfaces/commons-collections-3.2.jar;\
${base}/richfaces/commons-digester-1.8.jar;\
${base}/richfaces/commons-logging-1.0.4.jar;\
${base}/richfaces/jhighlight-1.0.jar;\
${base}/richfaces/richfaces-api-3.3.3.Final.jar;\
${base}/richfaces/richfaces-impl-3.3.3.Final.jar;\
${base}/richfaces/richfaces-impl-jsf2-3.3.3.Final.jar;\
${base}/richfaces/richfaces-ui-3.3.3.Final.jar
libs.ejbcli.classpath=\
${base}/ejbcli/appserv-admin.jar;\
${base}/ejbcli/appserv-deployment-client.jar;\
${base}/ejbcli/appserv-rt.jar;\
${base}/ejbcli/javaee.jar

In NetBeans, right-click properties on the project’s libraries and add richfaces and ejbcli.

Edit the web.xml file and add the following lines to configure RichFaces :



 org.richfaces.SKIN
 blueSky
 
 
 org.richfaces.CONTROL_SKINNING
 enable
 
 
 RichFaces Filter
 richfaces
 org.ajax4jsf.Filter
 
 
 richfaces
 Faces Servlet
 REQUEST
 FORWARD
 INCLUDE

Modify the welcomeJSF.jsp file like this :

<%@page contentType="text/html" pageEncoding="UTF-8"%>

<%@taglib prefix="f" uri="http://java.sun.com/jsf/core"%>
<%@taglib prefix="h" uri="http://java.sun.com/jsf/html"%>
<%@taglib prefix="a4j" uri="http://richfaces.org/a4j"%>
<%@taglib prefix="rich" uri="http://richfaces.org/rich"%>




 
 PKB Login

Create a new JSF managed bean pkb.ejb.cli.User :

package pkb.ejb.cli;

import com.sun.appserv.security.ProgrammaticLogin;
import java.util.Properties;
import javax.naming.*;
import pkb.ejb.srv.*;

public class User {

 private String name ="aaa" ;

 /** Creates a new instance of User */
 public User() {
 }

 public String getName() {
 return name;
 }

 public void setName(String name) throws NamingException {
 this.name = name;
 Properties props = new Properties();
 props.setProperty("java.naming.factory.initial",
 "com.sun.enterprise.naming.SerialInitContextFactory");
 props.setProperty("java.naming.factory.url.pkgs",
 "com.sun.enterprise.naming");
 props.setProperty("java.naming.factory.state",
 "com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl");
 props.setProperty("org.omg.CORBA.ORBInitialHost", "localhost");
 props.setProperty("org.omg.CORBA.ORBInitialPort", "3700");
 ProgrammaticLogin pl1 = new ProgrammaticLogin();
 pl1.login("user1","123");
 InitialContext ic = new InitialContext(props);
 UserBeanRemote ubr1 = (UserBeanRemote) ic.lookup("pkb.ejb.srv.UserBeanRemote");
 this.name = ubr1.getName();
 }

}

Edit the faces-config.xml like this :



 
 user
 pkb.ejb.cli.User
 request
 
 name
 java.lang.String

Create a new EJB module project.
Add this project to the libraries of the web application project.
Create a new session bean pkb.ejb.srv.UserBean with remote interface.
Add a business method getName to the bean.
Edit the UserBean class :

package pkb.ejb.srv;

import javax.annotation.security.DeclareRoles;
import javax.annotation.security.RolesAllowed;
import javax.ejb.Stateless;

@Stateless
@DeclareRoles("admin")
@RolesAllowed("admin")
public class UserBean implements UserBeanRemote {

 public String getName() {
 return "plout";
 }

}

Add the user user1 belonging to an admin group in the file realm of Glassfish.

Create a sun-ejb-jar.xml file in src/conf with the following content to map the user and use SSL :






    
        admin
        admin
    
    
            
                    required
                    required
                    supported
                    none
            
            
                    username_password
                    default
                    true
            
            
                    none

Create tablespace

yorakb — Thu, 30 Sep 2010 14:47:39 +0000

CREATE TABLESPACE 4BIGSEG DATAFILE ‘+DG1′ SIZE 100M LOGGING EXTENT MANAGEMENT LOCAL UNIFORM SIZE 10M SEGMENT SPACE MANAGEMENT AUTO ;
CREATE TABLESPACE 4OTHERSEG DATAFILE ‘+DG1′ SIZE 100M LOGGING EXTENT MANAGEMENT LOCAL SEGMENT SPACE MANAGEMENT AUTO ;

Column usage for histogram size computing

yorakb — Tue, 28 Sep 2010 13:59:24 +0000

select * from sys.col_usage$ ;

Get all plans of an SQL id

yorakb — Tue, 28 Sep 2010 13:36:09 +0000

select * from table(dbms_xplan.display_cursor(”,null,’ADVANCED’);

File statistics displayed in histogram (version >= 10gR1)

yorakb — Tue, 28 Sep 2010 08:12:59 +0000

select h.singleblkrdtim_milli, sum(h.singleblkrds) from v$file_histogram h group by h.singleblkrdtim_milli order by 1;

Delete all shema objects

yorakb — Mon, 13 Sep 2010 09:58:30 +0000

declare
	cursor c_get_objects is
		select owner, object_type,'"'||object_name||'"'||decode(object_type,'TABLE' ,' cascade constraints',null) obj_name 
		from dba_objects
		where object_type in ('TABLE','VIEW','PACKAGE','SEQUENCE','PROCEDURE','FUNCTION', 'SYNONYM', 'MATERIALIZED VIEW')
		and owner in ('DMADMIN')
		order by object_type;
	cursor c_get_objects_type is 
		select owner, object_type, '"'||object_name||'"' obj_name 
		from dba_objects 
		where object_type in ('TYPE')
		and owner in ('DMADMIN') ;
begin
	for object_rec in c_get_objects 
	loop
		execute immediate ('drop ' || object_rec.object_type || ' ' || object_rec.owner || '.' ||object_rec.obj_name);
	end loop;
	for object_rec in c_get_objects_type 
	loop
		begin 
			execute immediate ('drop '||object_rec.object_type || ' ' || object_rec.owner ||'.' || object_rec.obj_name);
		end;
	end loop;
end;
/

Silent database creation in RAC with ASM

yorakb — Tue, 17 Aug 2010 15:16:24 +0000

[ 10gR2 ]

dbca -silent -createDatabase -templateName General_Purpose.dbc -gdbName B01 -sid B01 -SysPassword oracle -SystemPassword oracle -emConfiguration NONE -storageType ASM -asmSysPassword oracle -diskGroupName DG1 -characterSet ALU32UTF8 -memoryPercentage 40 -nodelist sdb01

Shared-block ratio per instance in RAC

yorakb — Fri, 06 Aug 2010 13:26:12 +0000

select round(100*a.shared_blocks/b.total_blocks) shared_block_percent from (
select count(*) shared_blocks from v$bh where status = ‘scur’
) a cross join (
select count(*) total_blocks from v$bh
) b ;

Check if PSU is applied

yorakb — Tue, 03 Aug 2010 09:53:59 +0000

select * from registry$history ;