Database Processing: Fundamentals, Design, ImplementationInformation Systems -- Database Management. |
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Page 108
... domain from which values for each property can be drawn . Domain definitions specify formats , lengths , and special restrictions on the values of each domain . We will examine the entire object specification document in this section ...
... domain from which values for each property can be drawn . Domain definitions specify formats , lengths , and special restrictions on the values of each domain . We will examine the entire object specification document in this section ...
Page 311
... domain . If , for example , the third attribute of one relation comes from the Ages domain , then the third attribute of the second relation must also come from the Ages domain . In Figure 9-13 the JUNIOR and the HONOR - STUDENT ...
... domain . If , for example , the third attribute of one relation comes from the Ages domain , then the third attribute of the second relation must also come from the Ages domain . In Figure 9-13 the JUNIOR and the HONOR - STUDENT ...
Page 371
... domain for Paycheck - total . Rather , she would probably define a mask for each presentation of Paycheck - total . Domain Enforcement . As stated earlier , no microcomputer DBMS prod- uct explicitly recognizes domains . Instead , domains ...
... domain for Paycheck - total . Rather , she would probably define a mask for each presentation of Paycheck - total . Domain Enforcement . As stated earlier , no microcomputer DBMS prod- uct explicitly recognizes domains . Instead , domains ...
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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