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The database will enable college administrators the ability to track students initial major. This will help college officials decide how best to prepare students for their goals and to follow students into their careers. If there are majors where graduation rates are low it can help administrators decide how to better serve students, make changes to the curriculum or change standards of acceptance into the program.
Diagram Tool:ER AssistantDatabase:Oracle 10g, using Nova.Hardware and Software:UMUC server system (Nova). Operating system is UNIX.
DDL and DML:
SQL (Structured Query Language) will be used for the DDL and DML. For my DDL scripts, I will use SQL to translate the information captured in my ER diagram (created in ER Assistant) into database table creation scripts. For my DML scripts, I will use SQL to insert rows of data into my database tables.
definition and its work
These permit the user to unload a database or parts of a database and reload the data on the similar machine, or on another machine in a dissimilar location. This can be useful in
DML Precompiler All the DBMS have two basic sets of Languages - Data Definition Language (DDL) that have the set of commands needed to define the format of the data that is b
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 do you mean by atomicity and aggregation? Atomicity : Either all actions are carried out or none are. Users should not have to worry about the effect of incomplete trans
Define the categories of SQL Statements? 1) Statements that don't return a result set. This statement class includes INSERT, DELETE, and UPDATE. 2)Statements that return
A domain is a set of permissible values that can be given to an attribute. So each attribute in a table has a definite domain. Values to these attributes cannot be assigned outside
What is a guard condition? Explain it with a suitable example. The guard-condition is a Boolean expression written with respect to parameters of triggering event and attributes
Benefits of heap files 1. This is a easy file Organisation method. 2. Insertion is somehow capable. 3. Good for bulk-loading data into a table. 4. Best if file
Domain Constraints Domain constraints are primarily formed for defining the logically correct values for an attribute of a relation. The relation allows attributes of a relatio
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