Database against MySQL

The purpose of this research is to compare two important databases, Oracle 12c and MySQL. First and foremost, the Oracle 12c database is a high-performance enterprise period database. Once Oracle released it to the enterprise market, the Oracle 12c database became available on July 1st, 2013. Oracle 12c is the first database considered for the cloud, according to Oracle. Oracle 12c database offers over 500 new features, the majority of which are pluggable databases and multitenant architecture. The Oracle 12c Database release also includes an optional add-on called Oracle 12c Database In-Memory, which provides some in-memory capabilities. The internal built-in memory selection makes Oracle 12c database to be the primary Oracle database that can provide the real-time analytics. The original concept of Oracle 12c database is to ensure that there is an ease for the users to transit towards the cloud. The database being a multitenant architecture ensures that the design is simply a consolidation that should not involve any alternations to the applications. Consolidation is a significant step that leads to the readiness of the cloud. Most of the pluggable databases generate some rapid provisions and portable competencies (Farooq, Avantsa & Sharman, 2016). Due to this, Oracle 12c database gets to be the best suitable database that provides self-service capabilities and services.

Secondly, MySQL is the most comprehensive open base database due to its proven reliability, ease of use and performance. It was initially developed, supported and disseminated by Oracle. The present information confirms MySQL database as a flexible master replication. MySQL is the first database due to its choice of applications that are web-based (Sun & Qiu, 2016). MySQL database is commonly used by the high-profile websites that include YouTube, Facebook, and Twitter. Most importantly, MySQL is an extreme database that is popular for being an embedded datable. It is commonly distributed by thousands of OEMs and ISVs. The primary reason for using MySQL in comparison with Oracle 12c database is that both databases use the cloud service. The Oracle MySQL cloud package is built on an enterprise edition of MySQL and powered by the Oracle cloud. Oracle cloud system for MySQL offers some united, simple, fast operations and electronic services that allow organizations to increase business liveliness and reduce their working costs (Farooq, Avantsa & Sharman, 2016). As the world's most official expansive database source, MySQL permits the delivery of great recital and reliable web-based database applications. MySQL also offers some visual tools that assist the developers and DBAs to manage and build their businesses through the critical MySQL database.

Various advantages can allow an individual to use MySQL as an option for Oracle 12c database. First, MySQL database allows one to meet the service demands due to its scalability and high-performance level. The database experiences some exponential growth of data loads and an increase in its users. MySQL also experiences some identical-healing replication clusters that improve the performance, availability, and scalability of the database. This allows MySQL to be a different online Schema that can change or even meet various business requirements for the user. MySQL is also offered some performance schema that allows the user to easily monitor the application level through it resources and production-consumption (Sun & Qiu, 2016). The free MySQL platform also gives the user some flexibility that allows one to deploy and develop various operating systems. For one to achieve the highest scalability level of MySQL and reliability, it is necessary to include some comprehensive sets of advanced features that support industrial enterprises as well as auditing, secure and available features.

In comparing between Oracle 12c database and MySQL database, it is necessary to consider various features. In this section, the primary features that are important to cover include data security, data types, the data storage perceptions and the schema migration. First, database security for MySQL database allows the users to maintain the database through Oracle so as to use some group of grant tables that allow one to keep track of the privileges that the users can contain. The use of MySQL uses grant tables to perform the access of control for the users, authorization, and authentication of data. Oracle 12c database and MySQL database are also different in the authentication of the data bank. Oracle is primarily set up to use the authentication database. It only uses the username and password so as to authenticate a user (Farooq, Avantsa & Sharman, 2016). MySQL requires some additional parameter locations to authenticate a user. The setting position acts as the hostname, IP address, and the wildcard. Through the use of the other parameter, MySQL can restrict the user to access a database using a different host or endpoint host who is in the domain. Also, this ensures that one has the privilege of using some different passwords and various privileges to enforce a user depending on the host from where one can make a connection. For instance, if user Scott goes on to log on from abcd.com then he is likely to have the same user as Scott who later logs on from website fgh.com.

When it gets to the privilege system, MySQL privilege system only works through inheritance because it is hierarchical. Most of the privileges are only approved at a high level implicit by passing it down to a lower level that can be overridden through the use of equal opportunities that are set to a lower level. The MySQL privileges are therefore set on different levels that are set in a descending order depending on the scope of opportunities. The privileges include table-explicit, database level, a single column of a single table and per-host basis (Ravikumar, Krishnakumar & Basha, 2017). Every level exists on a corresponding grant table from the database. During the process of execution of a privilege check, the MySQL test tables should occur in a descending order through the scope of opportunities. The rights can be granted at a lower level so as to take the precedence of equal privileges that are offered at a high level. The first privileges that MySQL supports can be grouped into two different types that are per-object privileges and administrative privileges. The organizational privileges are international since they serve a broader effect that is concerned with the operation of MySQL. Most of the administrative privileges include SHUTDOWN, FILE, SUPER, REPLICATION and PROCESS privilege. The database objects might experience some effects due to the per-object privileges such as the indexes, stored procedures, columns, tables and the indexes. One can name the per-object privileges after the SQL query that triggers various checks.

Oracle is different from MySQL because it offers some concept roles. One of the primary concept function provided by Oracle 12c database of virtualization of the pluggable database. Most users prefer to use the beta testing Oracle 12c database through the pluggable database because it is the most powerful feature that exists. Most organizations are struggling with the database sprawl to have the ability to tap into the pluggable database (Sun & Qiu, 2016). It is, however, significant to realize that some modern features are upcoming in Oracle 12c database. Various beta testers of Oracle 12c database suggest that the recent pluggable database feature is one of the more potent versions of the database that is upcoming. They suggest that in the same manner that there is the virtualization of the server, the operating system from the underlying hardware can contain some pluggable database from the initial management of a system. Unlike Oracle, there is no pluggable database in MySQL database. For one to grant the set of users some privileges, it is necessary to ensure that the opportunities are offered to every user in a separate manner. Users can perform various tasks using MySQL like auditing and perform various tasks so as to share some designated roles through the use of granted privileges.

Oracle 12c database is not a case sensitive database especially to the object name and to the Oracle Schema object names that are kept as an uppercase. In Oracle, the index, and column trigger names that are equal to those in MySQL (Ravikumar, Krishnakumar & Basha, 2017). The column in MySQL is also case insensitive from various platforms. It is, however, important to realize that the case sensitive tables and database names for the MySQL database differ from those of Oracle. In MySQL, the database corresponds to various directories which are at the data directory. The tables resemble to one or even additional files that are within the directory database. In this case, sensitive table names are therefore determined by an occasion sensitive operating system that is underlying from the charts. The case sensitive database should be defined by the case sensitive operating system. The table names are never case complex especially in windows that are case-sensitive through various diversities of the Unix (Sun & Qiu, 2016). MySQL can, therefore, allow a user to control the case sensitivity system that underlies at the operating system. MySQL can allow a user to determine how the table and database name is stored on the disk and through the use of the MySQL lower case table names. The table assumed name are therefore circumstance-sensitive through the release of the MySQL.

Both MySQL and Oracle can allow one to reserve some words as object names through the representation of names with some quoted identifiers. MySQL can, however, allow one to reserve some words that include DATE and the TIME STAMPS that is used as an unquoted identifier for various object names. This kind of system is however not acceptable in Oracle 12c database. Oracle 12c and MySQL contain some differences from their definition of their identifier (Farooq, Avantsa & Sharman, 2016). In MySQL, the unquoted identifier can begin with either a digit or a double quotation mark that allows some quoted identifiers. In MySQL from the quote, characters are the backticks. One can use the double quotes as identifiers. In Oracles, it is necessary to quote the identifiers through the use of double quotation marks.

Oracle 12c database and MySQL database contain some alterations in character forms through the support of ways that store and retrieve some character value types. MySQL can support the VARCHAR and CHAR type of a character with a dimension that is not as much of 65,535 bytes. The CHAR form has an extreme of about 255 bytes because it can declare a length that is about 0 byte. The CHAR values of MySQL are padded with the right spaces of particular length especially when stored in trailing spaces and when the costs are recovered (Sun & Qiu, 2016). The VARCHAR values, on the other hand, can store various characters by giving MySQL spaces some values that are shorter than the column length. Oracles have the ability to retrieve and store values that are provided by the trailing spaces. If one assigned some column type characters that exceed some specified length, MySQL can truncate the value and can never generate a STRICT set of errors. Oracle can cause a mistake when the assigned value forms a character type of columns that exceed the specified length (Farooq, Avantsa & Sharman, 2016). In MySQL, the character form columns that are set through the CHAR, TEXT AND VARCHAR columns. When the character collation or set fails to explicit the defined column, the game table character can amplify some database character that is configured from the NCHAR and NVARCHAR forms as determined by the general set character.

MySQL default values differ from Oracle by offering columns that do not allow NULL values. From MySQL, the column does not permit the NULL values to provide data for the column to provide data that is inserted into tables that determine the default values for MySQL or the column (Sun & Qiu, 2016). The default value appears to be an inherent evasion value for some column data forms. If the strict modes allow MySQL to generate some errors for the transaction of tables that insert back statements. When data in Oracle enters values in tables, data can be provided for columns that never allow some NULL values. IN this case, Oracle can never generate some default values for columns that do not have constraints NULL values.

Oracle and MySQL contain different data types. MySQL data type include alternative Oracle data forms. First, when plotting the MySQL data types, various conditions can apply. First, if there is no existence of precision or a defined scale for any Oracle data destination form, then it is necessary to take some range and accuracy from the MySQL source data form (Ravikumar, Krishnakumar & Basha, 2017). The existence of the variety or accuracy is defined through the starting point data type where values can easily be compared to some equal values that form data source of a maximum value that is numerically selected. The string type of data maps the MySQL data type to some character types of data in Oracle depending on various conditions. First, it is necessary to ensure that there is not a specified length that is taken from different sources of evidence. There is also a defined range for a particular destination data form through the maximum values taken from two separate lengths.

An Oracle consists of one or more tablespace. A tablespace can provide some logical storage spaces that connect the database to a physical disk that holds data. A tablespace can, therefore, create one or more data files. The data files from a system file can be specified by a raw device. This means that an Oracle 12c database can contain few SYSTEM tablespaces in areas where the Oracles tables are kept. It can also include various users who are defined by a tablespace. A tablespace, therefore, refers to a logical location that stores several database objects. For instance, one can specify where an index or a particular table is created by a tablespace. Summing up, the MySQL uses some set of statements that assign values to system and user variables. The MySQL permits the compound statement to assign values to two or even more variables that are within the same declaration.

References

Farooq, T., Avantsa, S., & Sharman, P. (2016). Building Database Clouds in Oracle 12c.

Ravikumar, Y. V., Krishnakumar, K. M., & Basha, N. (2017). Oracle GI and Oracle 12c Database Upgrades in RAC Environments. In Oracle Database Upgrade and Migration Methods (pp. 323-380). Apress.

Sun, Q., Fu, L., Qiu, W., & Sun, J. (2016). An Automatic Anti-Attack Scheme for MySQL Database.