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The Maximum no of key fields that can be used in a header is??
50
Describe the objective of Structural Diagrams The main objective of structural diagram is to visualize, construct, specify and document static aspects of a system. Their eleme
Which operator is used to compare a value to a list of literals values that have been specified? BETWEEN operator is used to compare a value to a list of literals values that h
List the drawbacks of relational database system A) Repetition of data B) Inability to s certain information.
During the deletion of a tuple two cases can happen: Deletion of tuple in relation having the foreign key: In this type of case simply delete the desired tuple. For example, in
System level permissions : With the use of data dictionary you can view them. Let us take the table name as user_sys_privs (used in oracle). DESCRIBE USER_SYS_PRI
Key to represent relationship amongs tables is called ? A Key that represent the relationship between tables is called Foreign Key.
State The position of object at any moment is called state. An object can have many states depend upon time. After receiving some input instructions, the object can change its
Project: Microsoft Access You have been asked by the ABC Tanning Salon to create a database that can be used to track the salon's customers. You are to create a table in Access
Explain concurrency control? Concurrency control Oracles multiversion concurrency control varies from the concurrency mechanism used by some other data base vendors. Read
need a DBMS system on any data for assignment.
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