In this article we will analyze how we can access tables / views located in a remote Oracle database. To achieve this we need to create an object called Database Link.… read more
How can we get an email whenever an error occurs in the Oracle database Alert log
In a system based on an Oracle database, that an error occurs is recorded in a log file called the Alert Log. It is very useful to be informed immediately when something happens and the most immediate way is no other… read more
How we enable auditing in Oracle Database
In this article we will see the steps and options we have to enable auditing in an Oracle Database. Through auditing we can record who and how makes access or changes to... read more
How to improve the performance of a query running on an Oracle database (SQL Tuning Advisor)
Many times we will hear that suddenly a query that was running fast suddenly started to run slow or that a query is running very slowly for no reason. The easiest way to find out what is wrong and solve it is with… read more
How to Flashback an Oracle Database (Flashback Database)
In a previous article we analyzed how to flashback a database to a guarantee restore point in an Oracle database. In this article we will see how to go back in time through flashback database technology without using a restore point... read more
How do we find which sessions are active and which queries they are executing in an Oracle database
Many times the need will arise to quickly look for a session that executes a query. We might want to see the plan it ran with, the memory it consumes, the sql text, the session id, if… read more
How can we run multiple scripts in Oracle in Unix environment
In the article we will see how to easily and quickly create a script that can execute multiple other scripts in an Oracle database in a Unix environment. It even provides the ability to stop in case of an error. Creating the executable… read more
How to force a plan in an Oracle database
In a previous article we saw why a query can run with a different plan and how to force one in SQL Server. In this article we will see how to force a plan in an Oracle database with... read more
How to bulk data into database using Oracle Data Pump (impdp)
Many times we will need to keep the table data and their metadata (packages, procedures, functions, etc.) so that we can then import them into the same or a different system. In a previous article we saw the use of Oracle Data… read more
