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What is system catalog or catalog relation? How is better known as?
A RDBMS maintains a explanation of all the data that it contains, information about every relation and index that it contains. This information is kept in a collection of relations maintained by the system called metadata. It is also known as data dictionary
Hi I have got an assignment for making an er diagram for market management software can any budy help me?
What will be create when a primary key if combined with a foreign key? A primary key if combined with a foreign key it creates Parent-Child relationship between the tables that
How persistent programming languages differ from traditional programming languages? Database languages vary from traditional programming languages in that they directly manipul
An ideal data dictionary should have everything a DBA wants to know about the database. 1 Conceptual, External, and internal database descriptions. 2. Descriptions of attr
Define Deadlock avoidance These protocols as well ensure that the system will never enter a deadlock state although the way it is done is different from deadlock prevention. I
How much would you charge to create a database encompassing an Online Bakery with all the elements below? I. Describe the application that you would like to design. This should
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
What is an Index? An index is a small table having only two columns. The first column has a copy of the primary or candidate key of a table and the second column having a set o
Give the general form of SQL query? Select A1, A2............., An From R1, R2..............., Rm Where P
When It is better to use files than a DBMS? It is better to use files than a DBMS when Multiple users wish to access the data.
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