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C++ and database help needed

$30-250 USD

Zaprt
Objavljeno pred več kot 9 leti

$30-250 USD

Plačilo ob dostavi
Your system contains the following functionality: I. Data Definition part: a. define new tables: table name, attribute names and types b. for each defined table ask users to input possible constraints, including Boolean conditions, FDs and MVDs (in this order): The legitimacy of constrains should be checked: 1. ignore conflicting Boolean conditions such as age>10 and age<5 should be ignored; 2. trivial FDs should be weeded out, all FDs should be saved in non-trivial format; 3. trivial MVD or MVD that is trivialized by an existing FD, e.g., A->->B is trivialized by A->B. 4. foreign key designation, e.g., ssn in table roster is the key in table student. If one wants to input a tuple in roster and the ssn is non-existent, the user will be prompted to either quit the input or inserting a new tuple to the student table. if one wants to delete a record in table student, corresponding tuples in roster should also be deleted. c. ask users to define keys for each table, if the user-defined keys disagree the keys reached by its FDs, deny them and make viable suggestions to the users. My budget is 80$ and I need it as soon as possible . So if you available only then contact me Thanks
ID projekta: 6794058

Več o projektu

5 ponudb
Projekt na daljavo
Aktivno pred 9 leti

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thanks done thanks done thanks donethanks donethanks done thanks donethanks done thanks donethanks done thanks done thanks done thanks done
$100 USD v 2 dneh
4,5 (31 ocen)
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You man! Give me the 25 USD you owe my! .
$155 USD v 3 dneh
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O stranki

Zastava PAKISTAN
lahore, Pakistan
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Član(ica) od nov. 5, 2014

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