Category Archives: Databases

Fix Oracle “IO ERROR: The network adapter could not establish the connection” error

This is the ad hoc tutorial on how to fix “IO ERROR: The network adapter could not establish the connection” error while trying to connect Oracle Database.    Link to Google Docs Document   Watch this Tutorial on Youtube Below content is complementary to the video tutorial above. It is common problem that after… Read More »

Setup ORACLE 12C / 11G PDO for PHP 7.2 / 7.x

This is the ad hoc tutorial on how to enable PHP PDO for ORACLE 12C / 11G. First, we will download and install necessary files and rpm packages. Then we will make the needed system configurations. Next we’ll install the Oracle pdo package, create the php configuration file and test the connectivity with PDO to… Read More »

Setup MSSQL PDO for PHP 7.2 / 7.x

This is the ad hoc tutorial on how to enable PHP PDO for MSSQL. First, we will download and install necessary files and packages. Then we will make the needed system configurations. Finally, we will install the pdo_sqlrv package, create the PHP configuration file and test the connection with PDO to MSSQL server.   … Read More »

Setup MySQL 80/57/56/55 in CentOS 7 [or Apache+PHP Web Server CentOS]

This is the ad hoc tutorial on how to setup MySQL 80/57/56/55 in CentOS 7 or Apache+PHP web server in CentOS 7. First we will prepare the system update and configure necessary rpm packages. Next we will install and go through basic configurations of MySQL 8. Finally, we will connect to new created database using… Read More »