Database Processing: Fundamentals, Design, ImplementationInformation Systems -- Database Management. |
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Page 23
... DBMS tools to accomplish their goals . Because the products based on the relational model are generally easy to use , relational databases are often the heart of DSSs . At about the same time relational DBMSs were becoming widely used ...
... DBMS tools to accomplish their goals . Because the products based on the relational model are generally easy to use , relational databases are often the heart of DSSs . At about the same time relational DBMSs were becoming widely used ...
Page 372
... DBMS products begin to recognize the concept of domain . Why is this important ? As it stands now , DBMS products blindly allow the comparison of data from any two columns that arise from the same physical domain . For instance , it ...
... DBMS products begin to recognize the concept of domain . Why is this important ? As it stands now , DBMS products blindly allow the comparison of data from any two columns that arise from the same physical domain . For instance , it ...
Page 376
... DBMS product in use . Some products employ an interactive graphic method for database definition , while others get their database definition data from a text file prepared by the developer . Regardless of the technique for entering ...
... DBMS product in use . Some products employ an interactive graphic method for database definition , while others get their database definition data from a text file prepared by the developer . Regardless of the technique for entering ...
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Common terms and phrases
1:N relationships Activity advisor Application Development application programs APPOINTMENT attributes binary relationships cation changes Chapter Class COBOL components constraints contains CUSTOMER data dictionary data items database administration database application database design database processing database system dataflow diagram DBMS engine DBMS products define delete DEPARTMENT object display DK/NF documentation domain definitions domain/key normal form EMPLOYEE entity example faculty file processing systems foreign key format fourth normal form functional dependency identify implementation interface invoice logical Major many-to-many menus meta-data microcomputer modification anomalies modify multi-user multivalued dependencies object diagrams object instance object property operations overhead data personnel phase problem query relational model represent requirements SALESPERSON Samantha schedule screen second normal form shown in Figure Sname stored structure STUDENT data STUDENT object student records Student-ID subschema system development third normal form tion transaction processing programs tuple update user's