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Write a join query that for every order placed on September 5, 1998, (use '05-SEP-1998') will list the order number and order date along with the customer number, last name, and first name of the customer who placed the order
A database is to be created for University to monitor students' progress throughout their course of study. Students are reading for degree (such as BTech, BTech(Hons) MCA, etc) within framework of modular system.
Create a link list in ADT c to maintain employee information like name,empid,basic salary and address.1.add employee info to the list if the empid is valid.
What actions does a referential integrity constraint prevent from occurring when data is inserted in a table that contains this constraint?
Create the database using three tables: one for student information, one for advisor information, and one for department information.
How many entities are shown by this relation?
Investigate how databases solve multiple concurrent data management issues comprising lost updates, deadlocks and different kinds of lock management styles.
Write SQL statements that do the following: Calculate the average salary for all employees. Calculate the maximum salaries for exempt and non-exempt employees.
He wishes you to group data by insurance company number, with subtotals by company and grand totals for each numeric field.
Describe relationships with the example. Also illustrate degree of relationship for that example. Describe the different operations of relational algebra with suitable example each.
What is Recovering a database via rollforward? What is aim of transaction log? What is contained in transaction log?
Write a command to list all the employees hired in 2003 and 2004. Sort the rows by the hire_date column in descending order.
Find the entities from the functional requirements. Entities can come from Nouns in the text, they may also come from forms, reports and legacy code.
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