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The indices are accumulated in the index files. The data is accumulated in the data files. Indices give fast access to data items. For example, a book database may be managed in th
write-set(T): Each data items that are written by a transaction T
What does data dictionary is a special file contains ? The data dictionary is a special file contain The name of all fields in all files.The width of all fields in all files an
Can we delete data element, which is being used by table fields. No we cant delete data element.
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What is the need of a log in a DBMS? Briefly describe the various types of records that are normally present in a log. Ans: The system log, which is generally writt
Data Definition Language It organises the data in the form of columns and rows. But what does the data field column of table accumulate? How do you describe it using SQL? Th
a method named WonGame that checks each letter in the word is matched by its label
Define Physical and Logical independence Ans: Physical data independence: The ability to modify physical level without causing application program to be rewritten. Logic
In E-R Diagram how relationship type is represented ? In E-R Diagram relationship type is represented as a Diamond.
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