EPACK DATABASE SYSTEMS WITH LOOSELEAF
13th Edition
ISBN: 9780357475171
Author: Coronel
Publisher: CENGAGE L
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Chapter 8, Problem 43P
Program Plan Intro
ALTER TABLE Statement:
“ALTER TABLE” statement comes under Data Definition Language. It is used to modify column, add constraints, add column(s), drop column, rename column name and table name, drop constraints, and so on.
Syntax:
Syntax to drop constraint is as follows:
ALTER TABLE table_Name ADD CONSTRAINT constraintName;
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Exercice 1:
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1) Donner la définition des termes suivantes?
Le Mouvement :
La vitesse moyenne:
2) Répondre par « Vrai » ou «>
Un objet peut être en mouvement et au repos
Si la vitesse est constante, le mouvement sera uniforme.
3) Compléter les phrases par les termes qui conviennent :
Pour déterminer le mouvement ou le repos d'un objet, vous devez choisir un autre objet appelé le
d'un point d'un corps mobile est l'ensemble des positions qu'il
occupe durant son mouvement.
Il y a trois types de trajectoires: circulaire.
La distance de freinage dépend de
4) Cocher la bonne réponse?
> La relation entre la vitesse, la distance et le temps:
d
Vm = dxt
> L'unité internationale de la vitesse moyenne est :
m/s
5) On considère la figure suivante :
Compléter le tableau par les mots suivants :
En mouvement au repos
A
C
Km/h
et
et l'
m. s-1
15
A
B
C
Sol…
5. Here is a tree corresponding to T(64) for an unknown recurrence relation:
32 + lg 64
8+ lg 16
2+ lg 4
2+lg4
2+lg4
8+ lg 16
2+lg4
7
7
7
7
7
7
7
7
Fill in the details for the corresponding recurrence relation:
T(n) =
T(n/4)+
T(1)=
Put scratch work below. Scratch work is not graded but may be used for regrade
partial credit.
Top screenshot is question, the rest are examples and explinations.
Chapter 8 Solutions
EPACK DATABASE SYSTEMS WITH LOOSELEAF
Ch. 8 - Prob. 1RQCh. 8 - Explain why it might be more appropriate to...Ch. 8 - What is the difference between a column constraint...Ch. 8 - What are referential constraint actions?Ch. 8 - What is the purpose of a CHECK constraint?Ch. 8 - Explain when an ALTER TABLE command might be...Ch. 8 - What is the difference between an INSERT command...Ch. 8 - What is the difference between using a subquery...Ch. 8 - What is the difference between a view and a...Ch. 8 - Prob. 10RQ
Ch. 8 - Prob. 11RQCh. 8 - Prob. 12RQCh. 8 - Write the SQL code that will create only the table...Ch. 8 - Having created the table structure in Problem 1,...Ch. 8 - Prob. 3PCh. 8 - Write the SQL code that will save the changes made...Ch. 8 - Write the SQL code to change the job code to 501...Ch. 8 - Write the SQL code to delete the row for William...Ch. 8 - Write the SQL code to create a copy of EMP_1,...Ch. 8 - Using the EMP_2 table, write the SQL code that...Ch. 8 - Using the EMP_2 table, write the SQL code to...Ch. 8 - Prob. 10PCh. 8 - Prob. 11PCh. 8 - Prob. 12PCh. 8 - Prob. 13PCh. 8 - Prob. 14PCh. 8 - Prob. 15PCh. 8 - Create the CUSTOMER table structure illustrated in...Ch. 8 - Create the INVOICE table structure illustrated in...Ch. 8 - Prob. 18PCh. 8 - Prob. 19PCh. 8 - Create an Oracle sequence named CUST_NUM_SEQ to...Ch. 8 - Create an Oracle sequence named INV_NUM_SEQ to...Ch. 8 - Prob. 22PCh. 8 - Modify the CUSTOMER table to include the customers...Ch. 8 - Prob. 24PCh. 8 - Prob. 25PCh. 8 - Create a trigger named trg_updatecustbalance to...Ch. 8 - Prob. 27PCh. 8 - Prob. 28PCh. 8 - Write a trigger to update the customer balance...Ch. 8 - Prob. 30PCh. 8 - Create a trigger named trg_line_total to write the...Ch. 8 - Create a trigger named trg_line_prod that...Ch. 8 - Create a stored procedure named prc_inv_amounts to...Ch. 8 - Create a procedure named prc_cus_balance_update...Ch. 8 - Modify the MODEL table to add the attribute and...Ch. 8 - Prob. 36PCh. 8 - Modify the CHARTER table to add the attributes...Ch. 8 - Write the sequence of commands required to update...Ch. 8 - Write the sequence of commands required to update...Ch. 8 - Write the command required to update the...Ch. 8 - Write the command required to update the...Ch. 8 - Write the command required to update the...Ch. 8 - Prob. 43PCh. 8 - Create a trigger named trg_char_hours that...Ch. 8 - Create a trigger named trg_pic_hours that...Ch. 8 - Create a trigger named trg_cust_balance that...Ch. 8 - Write the SQL code to create the table structures...Ch. 8 - The following tables provide a very small portion...Ch. 8 - For Questions 49-63, use the tables that were...Ch. 8 - Prob. 50PCh. 8 - Write a single SQL command to increase all price...Ch. 8 - Alter the DETAILRENTAL table to include a derived...Ch. 8 - Update the DETAILRENTAL table to set the values in...Ch. 8 - Alter the VIDEO table to include an attribute...Ch. 8 - Update the VID_STATUS attribute of the VIDEO table...Ch. 8 - Alter the PRICE table to include an attribute...Ch. 8 - Prob. 57PCh. 8 - Prob. 60P
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