Computer Science: An OverviewGeneral literature -- Introductory and Survey. |
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Page 345
... relations — one for each of the preceding topics . Thus , we might keep the original relation ( which we now call the EMPLOYEE relation ) as it was and insert the additional information in the form of the two new relations called JOB ...
... relations — one for each of the preceding topics . Thus , we might keep the original relation ( which we now call the EMPLOYEE relation ) as it was and insert the additional information in the form of the two new relations called JOB ...
Page 347
... relation or relations . First note that there will be times when we will need to select certain tuples from a relation . For example , to retrieve the information about an employee we would need to select the tuple with the appropriate ...
... relation or relations . First note that there will be times when we will need to select certain tuples from a relation . For example , to retrieve the information about an employee we would need to select the tuple with the appropriate ...
Page 348
... relations actually is . First we consider the smaller example of MULTIPLYing a rela- tion A with attributes W and X by a relation B with attributes Y and Z to obtain a relation C ( Figure 9-9 ) . Observe that the attributes of the ...
... relations actually is . First we consider the smaller example of MULTIPLYing a rela- tion A with attributes W and X by a relation B with attributes Y and Z to obtain a relation C ( Figure 9-9 ) . Observe that the attributes of the ...
Contents
PART | 1 |
Chapter 2 | 61 |
PART TWO The HumanMachine Interface | 95 |
Copyright | |
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activities actually algorithm Alice allow application application software ASCII assign bit patterns block bottom pointer bulk storage called Carol Chapter COBOL computer science concept consider consists contains current entry database declare search disk employee example execution Figure goal hexadecimal identified implemented input insertion sort instruction integer key field linked list machine language machine's main memory memory cells modified module move node notation operating system parity bit password perform pivot entry position problem produce program counter programming languages pseudocode Questions/Exercises queue quick sort record recursive represented request resource result retrieve routine schedule search a failure search a success search tree Section segment sequence sequential file solution solving sort algorithm stack statement step stored string subprogram syntax tape target value task technique time-sharing top pointer Turing machine two's complement