Index

In the non-transactional area, often known as the analytical space, we are also seeing the cloud coming strong. It is not just the pure operational tasks being removed, even the query optimization is being automated or removed. Heck, Snowflake doesn’t even have indices.

The importance of protecting data is also getting more spotlight. Its always been a major concern but with new regulations like GDPR, companies are making major efforts to tighten things up. A DBA is critical to those efforts

Overall, just don’t look for the RDBMS product or vendor on which you have worked for few years, if you have the concepts clear then you can work for any of the available products in RDBMS and NoSQL areas with some basic training and they are all equally exciting like DB2 or more exciting than DB2 as for most of them the amount of resources available to learn are really incredible. Good luck !!

IBM Cloudant: This is a fully managed NoSQL database service that is designed for web and mobile applications. It uses Apache CouchDB as its storage engine and supports JSON data model.

What is your most current degree? Most BCA/MCA are paid lesser than their counterparts with BTech/MTech. Though there is no logic behind it but that is how it is(however it evens out with experience)

In summary, Mainframe DBAs play a critical role in ensuring the reliability and performance of mainframe databases and the systems that depend on them.

Now, there are other jobs where a DBA qualification can be very useful and not involve all this. Data Architects, Database Architects, or even application developer are roles where the knowledge of being a DBA will be useful but the core of your job description will be something else.

Overall, just don’t look for the RDBMS product or vendor on which you have worked for few years, if you have the concepts clear then you can work for any of the available products in RDBMS and NoSQL areas with some basic training and they are all equally exciting like DB2 or more exciting than DB2 as for most of them the amount of resources available to learn are really incredible.

Sometimes, it's just that your schema is crap. You're doing too many joins, or you have too much duplicated information. Dba modeling is an art in itself . A redesign might cause a lot of time, but it might save a lot of headaches in the long run.

Indexing: Creating and maintaining appropriate indexes can significantly improve query performance. Optimizing SQL queries: Ensuring that SQL queries are well-structured and efficient can have a big impact on database performance.

Additional structures like materialized views can help you keep good statistics about the queries you're running and they cache execution plans better than plain indexes. So if it is not too much to maintain them you can use them.

In DB worlds that don’t use a lot of stored procedures, you don’t see this as a specific role; in MySQL and Postgres shops, stored procedures and such aren’t used as extensively as they are in Oracle shops, so these are typically written by DBAs whenever they’re used.