.Write some MYSQL code to select three different sets of data and display them on the screen. Also, delete two different records from any of the table in your the database and then print the remaining data on the screen. Finally, update one of your table with five more new rows of data and print the result of the table on the screen.

.Write some MYSQL code to select three different sets of data and display them on the screen. Also, delete two different records from any of the table in your the database and then print the remaining data on the screen. Finally, update one of your table with five more new rows of data and print the result of the table on the screen.

A Guide to SQL

9th Edition

ISBN:9781111527273

Author:Philip J. Pratt

Publisher:Philip J. Pratt

Chapter3: Creating Tables

Section: Chapter Questions

Problem 4TD

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Write, but do not execute, the commands to grant the following privileges: a. User Oliver must be able to retrieve data from the CONDO_UNIT table. b. Users Crandall and Perez must be able to add new owners and condo units to thedatabase. c. Users Johnson and Klein must be able to change the condo fee of any unit. d. All users must be able to retrieve the unit number, condo fee, and owner number forevery condo unit. e. User Klein must be able to add and delete service categories. f. User Adams must be able to create an index on the SERVICE_REQUEST table. g. Users Adams and Klein must be able to change the structure of the CONDO_UNITtable. h. User Klein must have all privileges on the LOCATION, OWNER, and CONDO_UNITtables.
IN MYSQL write the command. Using the UML designed create all the necessary tables for your database system. Write the update, insert, select, and delete statements for each table.
Create a MySQL database with a minimum of 4 tables. Use the DDL commands. The tables must be related using the primary and foreign keys. Add at least 5 records per table using the Insert command. Delete 1 record in any of the tables. Edit 1 record in any of the tables. Write and execute at least 5 queries to retrieve records using the Select command. Select limited columns, filter records using where, sort records using order by, and link two or more tables using an inner join.
using postgresql: Write a trigger that will be activated when a new customer is added to the Customers table and that verifies that the ID of the new record does not yet exist in the table. If it does, the request shall be rejected. Show what happens when a record with an existing ID is attempted to be added to the Customer table to verify that your trigger is working properly. Customers table columns: id, first name, last name, email
How about a list of the advantages of database tables? write a quick statement about NULL?
In Oracle, if you have two tables related by connecting a primary key in table B and a foreign key in table A, how does the database behave during the insertion of a new record into table A? Question 45 options: 1) It creates a new primary key attribute that is automatically numbered as a sequence of numeric values. 2) It prevents foreign key values from being duplicated in table A. 3) It prevents any records from being deleted from either Table A or Table B. 4) It prevents a row from being inserted into table A if the data in the foreign key column of table A doesn't match any of the values in the primary key column of the table B.
What about a list of the advantages of utilising Tables in Databases? make a quick comment on the topic of NULL?
9. Delete the CUSTOMERREP role from the Oracle 12c database.
Practice Question 1. Assume that the Users table has a plenty of records but only three colums: UserID, FirstName and LastName. Write the following: a) Write an SQL query to show the top 5 records of the Users table. (in order to test it populate your table with more than 5 records) in the PHP file and to display the result in well-readable format (table preffered) in the browser using parameters. b) Write a SQL query in the PHP file that will print details of all users excluding those with the FirstName “Will” and “Michael” from the Users table and to display the result in well-readable format (table preffered) in the browser using parameters. Hint: you can either write all your code in the same file or use two different files
- Create dept_manager table with emp_no as primary key and auto increment and not null for other attributes. Ensure the DBMS deletes the referencing rows in the child table when the referenced row is deleted in the parent table which has a primary key. - Show the employee last name, title and order by title in descending order
Which of the following is an inmemory copy of data pulled from one or more database tables? 1. Table adapter 2. Table relation 3. Dataset 4. Data record
136. Which statement is true regarding external tables? a. The default REJECT LIMIT for external tables is UNLIMITED b. The data and metadata for an external table are stored outside the database c. ORACLE_LOADER and ORACLE_DATAPUMP have exactly the same functionality when used with an external table d. The CREATE TABLE AS SELECT statement can be used to unload data into regular table in the database from an external table

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