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Because the database is the collection of data / information.And the table holds these information in separate form so we can say that the tables the foundation of any Database System.......
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What are tables in SQL?
In relational databases and flat file databases, a tableis a set of data elements (values) that is organized using a model of vertical columns (which are identified by their name) and horizontal rows. A table has a specified number of columns, but can have any number of rows[citation needed]. Each row is identified by the values appearing in a particular column subset which has been identified as a candidate key.Table is another term for relations; although there is the difference in that a table is usually a multi-set (bag) of rows whereas a relation is a set and does not allow duplicates. Besides the actual data rows, tables generally have associated with them some meta-information, such as constraints on the table or on the values within particular columns.The data in a table does not have to be physically stored in the database. Views are also relational tables, but their data are calculated at query time. Another example are nicknames, which represent a pointer to a table in another database
Mapping the datawarehouse to multiprocessor Architectures?
it is set of data to according database and that not effected of any schedule system.
What is centralized database examples?
Centalized database organizes all of an organization data , it is like a mainframe computer. Like in any company or firm all the data is integrated in to a single system.
Is database design language a programming language?
No, it doesn't comprise any binary or computer language syntax. It simply uses schematic to graphic representation of tables structures and attributes as a mechanism to ease to the design process.
Examples of any 10 areas where database is implemented?
Its a place where a database is implemented>
A certain database has numerous tables but they do not share any fields in common. This database will not be as powerful as others because it is not .?
relational
What is difference between database and database management system?
A database is a collection of tables which store information. A Database Management System is an application/environment for creating, modifying and administering any number of individual databases. For example: MSSQL databases are typically managed using MS SQL Server Management Studio MySQL databases are commonly managed using PHPMyAdmin
A relational database consists of how many tables?
A relational DB can consist of any number of tables. --------------- Two or more tables to establish a relationship. You cannot have a relationship with yourself ...
What are the function and importance of the system catalog?
The data dictionary of a DBMS. The system catalogue stores meta-data including the schemas of the databases. It is a mini-database, and is usually stored using the DBMS itself in special tables called system tables. It maybe referred to as being "on line", as it is active, and can be queried by users like any other table.
What are tables in SQL?
In relational databases and flat file databases, a tableis a set of data elements (values) that is organized using a model of vertical columns (which are identified by their name) and horizontal rows. A table has a specified number of columns, but can have any number of rows[citation needed]. Each row is identified by the values appearing in a particular column subset which has been identified as a candidate key.Table is another term for relations; although there is the difference in that a table is usually a multi-set (bag) of rows whereas a relation is a set and does not allow duplicates. Besides the actual data rows, tables generally have associated with them some meta-information, such as constraints on the table or on the values within particular columns.The data in a table does not have to be physically stored in the database. Views are also relational tables, but their data are calculated at query time. Another example are nicknames, which represent a pointer to a table in another database
How can I design a good database?
This is a very broad question. I'll try to present different areas for you to consider when designing a database. 1. What is the database program and what is the OS it will reside on? 2. What is the scope of the database? Small (100 tables), medium (500 tables), large (1000+ tables and maybe a Terabyte of data?) 3. What type of data needs to be stored? 4. You'll need to know the hierarchy, related data (to make relationships between the tables), nature of the data within the tables to properly size the tables for future growth. Now, if you don't have all the up-front information, you can always create the database with what you do know. However, realize that later you may have to restructure, recreate the tables larger and copy the data or it may be easier just to recreate the database. If you need to do this, you can export the data if you have any that needs saved. If on the same node, you can do this table to table or by flat files. Table to table, you will have to disable auditing and any constraints, they reenable when finished. If you insert by flat files, it is faster and you will not have to disable. There is a lot to designing, updating and maintaining a database.
How you backup and restore database?
To backup and restore a database, as you would do for any computer file, depends on the operating system and the database used.
What is the difference between data base and Database management system?
database is a collection of related data in any size and in any complexity whereas database management system is software for defining, constructing and manipulating databases for various reasons.
What are the general guidelines for designing tables for database?
1. Identify the Tables. 2. Determine the primary keys. 3. Determine the additional fields. 4. Determine relationships among the tables. 5. Determine data types for the fields. 6. Identify and remove any unwanted redundancy. 7. Determine a location for the database. The database you have designed will be stored in a single file. You need to determine a location in which to store the file.
What does fields mean in databases?
A database stores data in a table and the data may or may not be related to other data. The tables in the database also may or may not have any relation with the other tables. A field is the attribute or the column name in a table.In a database, a "field" is the name of a column. You can think of them as fields on a form or in a record, where the rows are other records.
Is there any written articles about Database management system?
yes
Where is RDBMS used?
firstly what is database, a collection of information in called data and collection of data is known as database. data stores in the form of tabels and in the RDBMS two or more tables hold a relation. they allow fragmentation of the data(fragment of rows or columns for tables). RDBMS consists 14 cord's rules for RDBMS, there are no any RDBMS which are follow the cord's rules. RDBMS is used in Banking system,Airline ,Railway reservation sytem or where we take information from two or more tables. the distributed form of database must be RDBMS. Sohrab Hamid Siddiqui(CMC, noida, india)
