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Answer SQL Queries to extract data from data tables and questions on mapping conceptual data models into relational data model.
What is conceptual model ? A conceptual model is a independent of both hardware and software.
Project Description: This is a Customer Management project. Customer data is presented in a text file. The program can load this text data into its database columns. The data ma
Write short notes on relational model The relational model uses a collection of tables to show both data and the relationships between those data. The relational model is an ex
Describe in brief about DBMS ?
Describe file organisation? A file is organized logically as a sequence of records. These records are mapped onto disk blocks. A) Fixed-Length Records Type deposit=record
Deadlock And Its Prevention: As seen earlier, though two phase locking protocol handles the trouble of serialisability, but it causes some troubles also. For instance, consider th
We face problem of stock Opening balance and closing balance in Minus
In which form of relational database developer refers to a record? In a tuple form of relational database developer refers to a record.
let us consider a table having 2200 records and the fixed size of the table to be considered as 25.then how many numbers of table is requredto perform horizontal fragmentation
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