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public static void main(String args[]) – explanation

public static void main(String[] args) This is definitely not want to come out of thin air, nor dead provision does not make sense, but need java program execution. before jvm attempting to run a class, it has to check whether the class includes a special method. This method must be public, in order to obtain … Continue reading

ORA-00569: Failed to acquire global enqueue

‘ORA-00569: Failed to acquire global enqueue’ error when running the archivelog files backup Following error appeared on the RMAN process To fix this issue First, look the ASM instance log file. In this case, the log file is alert+ASM.log To run multiple instances of RAC environment for ASM instance, 200M SGA is clearly too small, … Continue reading

Oracle Automatic Storage Management – Overview

ASM(Automatic Storage Management) is a main push storage solution from Oracle, ASM and RDBMS are very similar, ASM is the instance and files can also be maintained through sqlplus tool. DBAs can create and delete ASM instances through DBCA. Also they can use grid command to finish the same tasks. ASM instance requires CSS process, … Continue reading

To dump the Oracle Database data file header information through oracle event

Direct use of the data file header dump, you can not query the data file header information Directly through the sql command 1) It is not any useful information, as follows: Block 1 (file header) not dumped:use dump file header command – From the first sentence can not see the data file DUMP out. 2) … Continue reading

PHP 5.5 Installation (source code) on CentOS Linux

PHP 5.5 Installation (source code) on CentOS Linux Pre-Requests Install Apache Httpd Install MySQL Database Server Operation System CentOS Linux 6.7 x86_64 Apache Httpd version Apache Httpd 2.2.23 Software Packages required PHP php-5.5.28.tar.gz autoconf autoconf-2.69.tar.gz FreeType freetype-2.6.tar.gz JPEG jpeg-9a JPEGSRC jpegsrc.v9a.tar.gz GD libgd-gd-2.1.1.tar.gz LIBCRYPT libmcrypt-2.5.8.tar.gz LIBPNG libpng-1.5.23.tar.gz LIBXML2 libxml2-2.9.2.tar.gz ZLIB zlib-1.2.8.tar.gz PHPMyAdmin phpMyAdmin- Zend ZendOptimizer-3.3.9-linux-glibc23-x86_64.tar.gz … Continue reading

Apache Httpd server Installation (source code) on CentOS Linux

Install Apache Httpd server on CentOS Linux Operation System: CentOS6.7 X86_64 Software Packages required Apache HTTPD httpd-2.2.23.tar.gz Apache Portable Runtime apr-1.5.1.tar.gz APR-util apr-util-1.5.4.tar.gz PRCE (for apache 2.4) pcre-8.36.tar.gz Step1) Unzip the installation package [root@LXTESTWIKI01 ~]# tar -xvzf httpd-2.2.29.tar.gz [root@LXTESTWIKI01 ~]# tar -xvzf apr-1.5.1.tar.gz [root@LXTESTWIKI01 ~]# tar -xvzf apr-util-1.5.4.tar.gz [root@LXTESTWIKI01 ~]# tar -xvzf pcre-8.36.tar.gz Step2) Install … Continue reading

Oracle Database Appliance (X5-2) Study (Virtualized Platform deployment) section 1

**This article is only for the purpose of demonstrating of my study of the Oracle Database appliance, not for any other purposes.** ODA Hardware version This deployment is for ODA X5-2 Software Requirements Oracle Database Appliance Manager 1212500 Oracle Database Appliance RDBMS Clone for end user (Patch Name or Number is 17770873), this patch is … Continue reading

MySQL database sourcecode Installation on CentOS Linux

MySQL database sourcecode Installation on CentOS(6.7) Linux Step1) Extract the installation package Step2) Install Make Step3) Install bison Step4) Install cmake Step5) Add user and group for MYSQL Step6) Install MySQL Modify the /etc/profile file,add the following contents at the end of the file Apply the /etc/profile to live Step7) Start mysql Locate the my.cnf … Continue reading

Install Apache Tomcat on CentOS Linux

Install Apache Tomcat on CentOS Linux Download and install the Apache Tomcat for Linux For the Apache Tomcat Linux Installation, we want to download the Source Code Distributions version, in this case apache-tomcat-8.0.31.tar.gz Extract the Tomcat package to /usr/local/ Set the environment for Tomcat Add the follow content to the file .bash_profile Run the startup.sh … Continue reading

Install Apache Tomcat 8 on Windows 7

How to install the Apache Tomcat (Version 8) on Windows 7 (64bit) Install the Java SDK 7 (Or above) Download the Java SDK 7 from Oracle Website, open the JDK Installation program and click Next->Next>Next until the Installation is completed Download and Install the Apache Tomcat Download the Apache Tomcat from Apache website, I selected … Continue reading