Database is the data stored in the server and Database administrator is the person who designs the database.
No. Database is a data itself, organized according to rules of database management system. And Database Management System is a software used to organize a database, and to acces it too.
There is not any one specific training that is required for working as a software project manager. However in depth knowledge of applications development, logical and physical database design and networking are needed.
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A database administrator oversees all aspects of the database. He/she will be the person who has the ability to make anything happen with the management of the database.
tablespace,segment,extent,oracle blocks.. are the logical schema of a database
* Logical database design: * ensuring, via normalisation procedures and the definition of integrity rules, that the stored database will be non-redundant and properly connected; * Physical database design: * specifying how database records are stored, accessed and related to ensure adequate performance. What is logical database designerThe major role of logical database design is to transform the combined, reconciled data specifications into basic or atomic elements following the well established rules for well structures data specifications. With a complete logical database design in place an analyst begins to specify the logic of the particular computer programs and queries needed to maintain and report the database content. The person who maintain or responsible to perform the above task is known as Logical Database designer.
A logical database refers to the conceptual schema or model of data relationships and structures, independent of how data is stored or accessed. On the other hand, a physical database involves the actual implementation of the database on a specific hardware system, detailing how data is stored and accessed. The logical database design focuses on the organization of data, while the physical database design focuses on optimizing performance and storage efficiency.
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The logical constists of the name of the table, the attributes it contains, their types, the constraints on the attributes, if any.
Logical database design is the process of designing the database at a conceptual level as opposed to a physical level. There are many advantages of conceptual database design, such as the ability to design the database without having to commit to a particular database management system, to produce a document that is readable and understandable to everyone in the company (not just the database person) and to produce an overall design document that can be saved as a part of the documentation of the database for future enhancement, maintenance and support work. Logical database design produces documents for use in the same way that architects produce blueprints for building purposes.
A Database consists of the following components.Schema - A Schema is a logical grouping of a set of database tablesTable - A table is a logical sub unit of information that is split up into rows and columns - much like the MS XL spreadsheetAll the data that is stored in a database is organized into tables and schemas.Apart from this, a database can have:ViewsFunctionsStored Proceduresetc
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A logical database refers to the way data is organized, modeled, and accessed by users, focusing on the structure and relationships of data. In contrast, a physical database relates to how data is actually stored on disks, including indexes, partitions, and access paths designed for efficient data retrieval and storage.
Architecture is the frame work of the Database Management System. They are simply classified into logical and physical.