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What is transaction?
Collections of operations that form a single logical unit of work are known as transactions.
Define Serializable schedule Serializable schedule: An interleaved schedule of much more than one transaction is known as a serializable schedule, if it is equal to some serial
Shared lock or Read Lock It is requested by a transaction that needs to just read the value of data item. A shared lock on a data item does not permit an exclusive lock
What are the two types of errors? The two types of errors are: a) Logical error b) System error
What are the comparison operator in SQL? Comparison operator in SQL are =, LIKE and BETWEEN
Determine the Three Views of Data We know that the similar thing, if viewed from dissimilar angles produces difference sights. Similarly, the database that we have formed alrea
This language that enable user manipulate to or access data as organized by appropriate data model. Low level or Procedural DML : DML needs a user to specify what data ar
What are the Constituents of File? Also elaborates all the possible file operations? A file is organised logically as sequence of record. These records are mapped onto disk blo
What are the advantages and disadvantages of using a database system. Sol. Advantages of Database System (DBMS) : (1) Data Redundancy and Inconsistency: Since differen
please give me introduction to full data in D B M S in a short assignment
What is conceptual schema? The schemas at the view level are known as subschema that describe dissimilar views of the database.
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