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Databases | SQL | Oracle | MS Access
Make a Update Query that will add the phrase "Free Champagne for this Preferred Guest" to the Comments field, but only if the guest stays for 8 yrs or more.
Databases | SQL | Oracle | MS Access
Make a parameter query thats allows the user to choose which birth month to display,. So when the use is prompted for birth month, they might type 3, for March, and only the records which have a Date of Birth (dd/mm/yyyy) in March, will display
Databases | SQL | Oracle | MS Access
Your job in this assignment is to take the First Normal Form table and turn it into Third Normal Form design, complete with primary and foreign keys.
Databases | SQL | Oracle | MS Access
Write a SELECT statement that changes the phrase Today is Monday to Today is Tuesday
Databases | SQL | Oracle | MS Access
DIFFERENTIATE BETWEEN TRANSACTION RECOVERY AND CASH RECOVERY
Databases | SQL | Oracle | MS Access
Why are the top three layers in the reference architecture for distributed database systems are often referred to as site independent schemas?
Databases | SQL | Oracle | MS Access
how does mc access works
Databases | SQL | Oracle | MS Access
Which data warehouse architecture is effective for an organization with various business units that generally has unique data needs, and where some data and processes may overlap?
Options:
Hub and Spoke
Centralized Data Warehouse
Department Data Mart
Security
Your answer must explain why or why not each option is or is not appropriate.
Options:
Hub and Spoke
Centralized Data Warehouse
Department Data Mart
Security
Your answer must explain why or why not each option is or is not appropriate.
Databases | SQL | Oracle | MS Access
Consider a database with relations R(A,B,C), S(D,E), and T(F,G).
(i) Give the initial query plan (constructed as in Lecture 12) for the SQL query
SELECT B, E, G
FROM R, S, T
WHERE A = 10 AND C = D AND E = F AND A > G;
Then use the heuristics from Lecture 16 to transform the initial query plan into an optimised
(logical) query plan. Perform the transformation step-wise, pushing a single operator over a
single operator in each step, and indicate the heuristics you apply.
(i) Give the initial query plan (constructed as in Lecture 12) for the SQL query
SELECT B, E, G
FROM R, S, T
WHERE A = 10 AND C = D AND E = F AND A > G;
Then use the heuristics from Lecture 16 to transform the initial query plan into an optimised
(logical) query plan. Perform the transformation step-wise, pushing a single operator over a
single operator in each step, and indicate the heuristics you apply.
Databases | SQL | Oracle | MS Access
Database Systems - (Query) I have duplicate invoices and I need to combine the customer balances. How do I write the equation?
