There are various database-related solutions out there that have dominated the market, people are talking about different solutions that can fulfill their requirements not all of them are perfect but as long as these provide with a customized approach and get the work done for the people they are alright choosing whatever solution they can get their hands on. But for the sake of the argument; it is best to have your hands on the best of the best so that you get a consistent and market-tested product that will continue to support you for years to come.
The multi-model creation of Oracle Corporation known as the Oracle Database is quite renowned for its data management system. It handles the necessary functions of online transactions, mixed workloads of the database, and the warehousing of the data. Oracle Corporation is also known for its marketing of the Oracle Database which has become so popular that everybody is yearning to learn and get certified in this system.
Identity columns are nothing new in T-SQL. They are great when you want a unique number to be automatically assigned every time you insert a new record. The trouble is that while they are unique within the table, they are probably the same between tables. Every table with an identity column has a 1 for the first record, a 2 for the second, etc. Of course you can set the seed and increment for the identity column to something other than (1,1), but you still have to manually track which table has which seed. Trying to track that is destined for failure. What we really need is a way to have automatically assigned numbers for new records, but ones which are guaranteed to be unique across any table that uses them. Of course, you know I wouldn’t be writing this if there weren’t a solution. In SQL Server 2012, Microsoft introduced something called the SEQUENCE object that does this very thing.