Last week we made a backup of our Oracle database using the RMAN tool. Today, I am going to show you how to be a hero and restore your database. This will be another long post, but saving your companies data is worth it.
Some workplaces have multiple database platforms that you will be responsible for. The main thing a DBA is responsible for is being able to recover the database in case of a disaster. Below is an easy way how to backup an Oracle database using RMAN. Is it the only way to do this? Of course not, there a literally dozens of ways depending on how complicated your environment is, but it is a legitimate way to create a backup and it will save you. In the next posting, I will show you how to restore the database onto a new server.
Do you have files stored in your SQL Server database and need to see what they are. Here is a way using my favorite add-in SSMSBoost.
Starting with SQL Server 2012, Microsoft has included analytic functions within the database. A couple that I use often, Lag and Lead, are very handy when you need to reference a previous or next row in a table without having to use self-joins or having to create a complicated sql statement.
On 2/4/2017 I went to my third SQLSaturday hosted at Hyland Software in Westlake, OH. What is SQLSaturday? From their site: “SQLSaturday is a training event for SQL Server professionals and those wanting to learn about SQL Server. Admittance to this event is free, all costs are covered by donations and sponsorships. Please register soon as seating is limited, and let friends and colleagues know about the event.” http://www.sqlsaturday.com/
Duplicate data in your database? I will show you two ways on how to delete duplicate data in your Sql Server database. How does it get there? The ways are limitless, but you more than likely do not have an adequate unique index or unique constraint setup for your table.