Chapter 9, Problem 1EYK

Provide a full explanation of the trigger using an example in the database.

What exactly is meant by the terms "insert anomaly," "update anomaly," and "delete anomaly"?

This process will be documented schematically in the table below that will:- identify all SQL commands (using proper role names, table names, user names, etc. and proper syntax),- identify which user (DBA or NEW USER) should execute each command, and- detail the expected outcome based on your knowledge of Oracle data administration, roles, and granting and revokingprivileges to roles.Initially, the new user will not be able to do anything, including any selects, inserts, updates, or deletes on any of the DBA’s tables.The DBA will create a role and assign the new user to that role. Then, the DBA will grant and revoke various select, insert, updateor delete privileges to the role. It is your responsibility to determine the outcome.You will not be able to execute any of these commands in a live environment. The DBA would like for you to complete thisdocumentation to help a new intern learn the process. The intern will arrive early next week.The database relational schema and sample data…

So I'm having issues with MySQL and my issue is with the orders table where the columns are retrieved but the rows aren't and it's only the orders table and I include the order_line table and it works correctly.

Hi this is from an EDA ABOUT imdb dataset on Kaggle. I'm trying to understand what the person did. I know that stars 1 through 4 are col names which contain the name of actors. Why do we have the name axs? Why is ax=0 and why is that important and where does it come about later in the code? What does the .sum and reset_index do? Also what is the third line doing? Please explain everything and if you can show alternative code that might be easier to understand

The WorkOrders table contains a foreign key, ClientNum, which must match the primary key of the Client table. What type of update to the WorkOrders table would violate referential integrity? If deletes do not cascade, what type of update to the Client table would violate referential integrity? If deletes do cascade, what would happen when a client was deleted?

What would be the result of the SQL statement CREATE UNIQUE INDEX idxA ON TabA(A), if the column A is not a candidate key?

Identify the most common varieties of NoSQL DBMSs and evaluate how they stack up against RDBMSs in terms of both functionality and performance.

(select all that apply) In MS Access, to ensure that a grade must be either A, B, C, D or F, whichvalidation rule should be used?A) ="A" or ="B" or ="C" or ="D" or ="F"B) between A and FC) like "A", "B", "C", "D", "F"D) not in ("A" or "B" or "C" or "D" or "F")E) in ("A", "B", "C", "D", "F")