Articles in the Databases Category
Databases, Featured, Headline, How-to, Linux, Mysql, Postgresql »
We will not discuss who is better or who is not, we just try to provide you a simple how-to to migrate from MySQL to Postgres or from Postgres to Mysql. On internet are several documents about that, but I will try to add new fresh informations from my experience with that. The differences between this Postgres and MySQL are starting from the concept of this two platforms. For example Postgres follow more closer the ANSI SQL standard than MySQL, the method of administration is totally different between them, Mysql …
How-to, Linux, Mysql, Newbie, Recovery »
It happens from time to time to forget some passwords if I’m not using them very very often. Recently I forgot the root password on a MySQL database from an external client. Recovering the password was not such a big deal, but I will explain how I do that for the newbies or anybody who need to know that. To do that you will need to stop your MySQL Database so if you are in a production environment then it will be better to schedule a downtime window. The process …
Debian, How-to, Linux, Mysql »
Always when we talk about MySQL replication we talk about high-availability (HA). Why we choose Mysql Replication and not Mysql Clustering in a high-availability environment? Because Mysql Cluster have some limitations on his NDB storage system and probably we want to use INNODB (ACID compliant storage system) and foreign keys.
What is Replication ? Is a Database syncronization between two (or more) MySQLnodes.
I will start explain you in this step by step tutorial how to do a master slave configuration between 2 nodes.
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Java, Liferay, Linux, Mysql »
In the old versions of Liferay, switching from HSQL to MySQL was easy under Glassfish. Just replace the jdbc connector created for HSQL with one for MySQL and at the next restart of Liferay all was working ok. From version 5.2.1 configuration was changed and all is done from portal.properties. To switch from HSQL just create a portal-ext.properties with the following content:
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