Linux
The main difference between db2 and oracle is the fact that db2 is owned by IBM corporation and oracle is owned by Oracle Corporation. Both db2 and oracle are extremely powerful RDBMS systems which offer a wide variety of featues to its users. 1.DB2 is an RDBMS from IBM while Oracle is an RDBMS from the company of the same name 2.IBM offers DB2 packaged along with its iSeries hardware and operating system while Oracle is sold as an independent software 3.Most people usually regard to Oracle as superior due to many shortcomings of DB2 4.Oracle directly supports a Java application server where you can deploy Java servlets while with DB2 you would need to employ a Java translator like Tomcat
sql db2 oracle mysql
Oracle, Db2, SQL Server etc
Relational databases: Organize data into tables with rows and columns. NoSQL databases: Designed for large volumes of unstructured or semi-structured data. Object-oriented databases: Store data as objects. Graph databases: Optimal for data with complex relationships. In-memory databases: Data stored in RAM for faster access.
sql db2 oracle mysql
Windows, Linux and UNIX machines
Db2 my sql oracle postgres
Oracle, MS SQL Server, Informix, Sybase, DB2, MySQL And for "toy" applications, MS Access.
SQL server oracle DB2 MYSQL
Oracle Teradata Sql Server Sybase DB2 BigTables Foxpro MySql.........
Why Oracle Is So PopularIn a nutshell because for the longest time they had the best database with the best performance. DB2, SQLServer, and others have closed the gap, but they're still the Cadillac of databases. I know, I work with Oracle databases every day. I have been an Oracle DBA, Informix DBA and am now an HPNonStop Tandem DBA. Along with Oracle's performance, it is also easier to learn, administer and has the best GUI tools included with the product (meaning you don't have to purchase tools separately).I personally think Oracle leaves a lot to be desired. In my experience, Oracle seems to require many more resources to operate and upgrade than DB2. I would prefer DB2.
The name of few DBMS are FOXPRO, MS-ACCESS, SQL Server, My SQL, ORACLE, etc.