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Need to have 2 forum replies that are 175-200 words each with references. These are all IT related. ThanksĀ 

Forum Reply 1: 175-200 words with references


Topic 1: Describe tablespace and the role it plays in a database.

A tablespace is a logical group of data files in a database. A database typically contains at least one tablespace, and usually two or more. Within the database, the tablespace plays a role like that of a folder on the hard drive of a computer.

Some database programs, such as Oracle, automatically create a tablespace called SYSTEM that contains general information about the structure and contents of the database. A small database can be entirely contained in the SYSTEM tablespace, but in most cases, user data is placed in other tablespaces.

The files in a tablespace usually share a common characteristic. For example, a database for a wholesale distributor might consist of tablespaces entitled ACCOUNTING, ORDERS, SHIPPING, SERVICE, and SYSTEM. Each tablespace might contain only one data file, or thousands of files, or anything in between. Tablespaces can be created, deleted, and merged, just as can the folders on the hard drive of a computer.

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Forum Reply 2: 175-200 words with references

Topic 2: What’s the difference between a Bigfile tablespace and a Smallfile tablespace? Explain which you would use for your database and why.

Bigfile tablespace helps with efficacy in storing large amounts of data. According to Sharma (2018), Bigfile tablespace comports a maximum of 1 data file that is built on single data files, which can be as big as 232 data blocks in size. Hence, a Bigfile tablespace that uses 8KB data blocks can be as much as 32TB in size. Whereas, Smallfile tablespace consists of default type of tablespace. In the Oracle database, Smallfile tablespace can have multiple Datafiles that can have 222 data blocks in size, and it can also have maximum as much as 1022 datafiles but, this number varies based on the operating system.

I would use Bigfile tablespaces as they help reduce the total number of Datafiles to the database. As opposed to Smallfile tablespaces with multiple Datafiles, the Bigfile approach facilitates database performance concerning the start, checkpoints, and speed. Although it may take a long time in recovery (Rathore, 2018), Bigfile tablespaces help in data transparency. Every table is having on datafile, which appears to be easier to locate the data.

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