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The database files accept the actual data and are typically the biggest in size. Depending on their shape, the tables for all the user operation can go in one database file-but that's not an unique situation because it does not create the database structure very flexible for controlling access to storage for different accounts, putting the database on different storage disk drives, or backing up and restoring just phase of the database. You must have at least one database file but generally, more than one file are needed. In terms of accepting and using the data in the other objects and tables, the number of the folders is immaterial. The database files are not variable in size and never goes bigger than the size at which they were prepared
Information about films holds information about movies, stars and studios. Movies have a title, year of production, length and the film type. Stars have a name and address. Studi
atient(PNumber, Name, NHS_no, Amount_due, DNO, Doctor, Medical_Treatment), relation of schema Staff(StaffNum, Name, DNO, Task) and relation of schema Dept(DNO, Name, Location, Dire
1. Determine that the Checkpoints are a part of Ans: Checkpoints are a part of Recovery measures
Example - ALTER TABLE emp MODIFY (empno NUMBER (7));
What are called index-sequential files? The files that are ordered sequentially with a primary index on the search key are known as index-sequential files
State the definition of association An association is a structural relationship which specifies that objects of one thing are connected with objects of another. In UML, asso
Creating a view: A query can be embedded within the CREATE VIEW STATEMENT A query can have complex select statements containing join, groups and sub- queries A quer
Explain sorted File with advantages? Sorted file The sort utility shall perform one of the subsequent functions: 1.Sort lines of all the named files together and write the
Consider a typical sales invoice that would include the following information. Design a single table to hold all of the information required to store an invoice including this info
want a idea for final year project
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