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external and internal mapping with examples
List the SQL domain Types? SQL supports the following domain types. 1) Char(n) 2) varchar(n) 3) int 4) numeric(p,d) 5) float(n) 6) date.
Which types of data supported by MySQL for Time and Date formats? MySQL supports a number of time and date column formats: Some of them are 1) DATE 2) DATETIME 3) TIM
what is entity in database system?
We are looking to find someone to prepare a database which improves upon the one we are using at present. The present database will be found here: Click on filter options and yo
What is conceptual schema? The schemas at the view level are known as subschema that describe dissimilar views of the database.
1. Which model is used to store data in tree structures Ans: Hierarchical model is used to store data in tree structures
What is a trigger
What are the basic objects of the data dictionary? Tables Domains Data elements Structures Foreign Keys
Explain the main advantages of DBMS over File Oriented System ?
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