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Write a PL/SQ block to do the following:
Select the average salary of all employees in department number 20.
If the average salary is less than 5000, then increase the salary of all employees in that Department by 10% (using an UPDATE command). If the average salary is greater than 5000, then display the message ‘No action needs to be taken'.
Write PL/SQL procedures and functions to populate and query that database
Draw an Entity-Relationship Diagram (ERD) for the data storage requirements of a business described in the case study and Data Model Transformation.
Run the lab_03_01.sql script in the attached file to create the SAL_HISTORY table. Display the structure of the SAL_HISTORY table.
Write down SQL needed to create employee table containing the following data: employeeID, text, length of 5, primary key lastName, text, length of 25
Write the command to list all the employees hired in 2003 and 2004. Sort the rows by the hire_date column in descending order.
Write a SELECT statement that returns one row for each general ledger account number which contains three columns.
Write SQL statement which creates user defined function which returns int value. This int return value is obtained by deducting the lowest Count field value from the highest Count field value of Part table.
Write an SQL statement to produce a single column called ItemLocation that combines the SKU_Description,the phrase "is located in."
Code SQL statements to update view as follows: change spelling of Mark Tobey to Mark Toby. Design new Transaction for Mark Toby. Suppose you have essential transaction, work, and customer data.
Create a program that enters first and a second number. The first and second number that will be entered should be computed in halves, quarter, double, and square.
Explain how you will go about developing this database. Provide at least four queries that answer some of the questions asked by the end users.
As DBA, your manager called a meeting and asked why there are so many orders for customers that don't exist in the customer table. Write query which would shows which customers were missing for existing orders. Use a join or a subquery.
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