Relational Database
Relational Database
Database: A database is information that is set up for easy access, management and updating.
In a relational database, data is stored in different tables with relationships to each other.. The database has rows and columns and a unique key for each data point.These tables communicate and share information, which facilitates data search ability, organization and reporting.
In the case of relational database, a Relational Database Management System (RDBMS) performs these tasks. An important feature of this database system is that a single database can be spread across several tables. E.g. Base, Oracle, DB2, SyBase, Informix, etc.
Rows of a relation are called ___________________- | |||
| Right Option : B | |||
| View Explanation | |||
In files, there is a key associated with each record which is used to differentiate among different records. For every file, there is at least one set of keys that is unique. Such a key is called _____________________ | |||
| Right Option : D | |||
| View Explanation | |||
Which of the following types of table constraints will prevent the entry of duplicate rows ? | |||
| Right Option : A | |||
| View Explanation | |||
Students / Parents Reviews [10]
My experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
8thI have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
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Hiya Gupta
8thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
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Om Umang
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Eshan Arora
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Prisha Gupta
8thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
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10thIt has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
