eate an ADD TRIGGER. Explain what the trigger does. Test and show the related results of this trigger. Table 1: CREATE TABLE BSR_PASSENGER (PASSENGER_ID INT NOT NULL UNIQUE, FULL_NAME VARCHAR(30), COUNTRY VARCHAR(40), CITY VARCHAR (40), PRIMARY KEY (PASSENGER_ID)); Table 2: CREATE TABLE BSR_FLIGHT (FLIGHT_ID INT NOT NULL UNIQUE, AIRLINE_NAME VARCHAR(50), CREW_MEMBERS INT, PRIMARY KEY (FLIGHT_ID)); Table 3: CREATE TABLE BSR_BOOKING (BOOKING_ID INT NOT NULL UNIQUE AUTO_INCREMENT, PASSENGER_ID INT NOT NULL, FLIGHT_ID INT NOT NULL, COST DEC(6,3), PRIMARY KEY (BOOKING_ID), FOREIGN KEY (PASSENGER_ID) REFE

Q: Question 6 Consider the following table schema: CREATE TABLE members( member_id INT, first_name…

A: To Do: We need to identify the column for indexing.

Q: (d) Descendants by gender: For all persons who have a descendant, compute the number of descendants…

A: COUNT The number of rows that match a certain criterion are returned by the COUNT() function. AVG…

Q: Create table sales ( sales_no   number (4), sales_date   date ); Insert into sales values…

A: --creating tablecreate table orders(order_number number primary key,order_date date,ship_city…

Q: CREATE TABLE MOVIE( mov_id int NOT NULL, mov_title varchar(255) NOT NULL, mov_releaseDate date,…

A: #sourcecode with example create database db1;CREATE TABLE db1.GENRE( gen_id int NOT NULL, PRIMARY…

Q: Explain the difference between main key, candidate key, and superkey..

A: Differentiation between main key, candidate key, and super key A super key is any collection of…

Q: Task 5: The Driver Relationship team requested to ensure that there will be no duplicates in the…

A: Here have to determine sql query statment for add constraints to table.

Q: Emp:- Id is Primary key Project:- EmpId foreign key. Find out the output of the left outer join,…

A: Joins in SQL integrate information from two or more tables according to shared columns. The left…

Q: Using R and mtcars data set, perform the exercise Create a new object named car_inner containing…

A: Create a file named Student.java and add below code in it. public class Student {     //id data…

Q: The Brewbean’s application contains a page displaying order summary information, including IDBASKET,…

A: The Brewbean’s application contains a page displaying order summary information, including…

Q: this is a database table Create table SPORTSCARS{ S_id int not null, S_YEAR NUMBER(4,0), S_Make…

A: Task : Given the SQL  query. The task is to convert it into XML and XSL.

Q: Task 6: Add the following record to the OWNER table: INSERT INTO OWNER VALUES('SA100', 'Sam',…

A: Attached the Procedure to add the following record to the OWNER table:   INSERT INTO OWNER…

Q: Display the unique CType in the CLIENTS table. Sort the CType in ascending order.

A: 1. Here we need to use Keyword DISTINCT to display only unique values. The Query is SELECT DISTINCT…

Q: Go ahead and run the below query into your "users" table. You just need to copy and paste it. 2-…

A: Output after inserting data.

Q: --Creating the tables USE Bobs_Home_Repair; DROP TABLE IF EXISTS dbo.BOB_EMPLOYEE; CREATE TABLE…

A: Database : It is collection of data which can be managed,accessed and maintained easily. Data Schema…

Q: The Car Maintenance team wants to update the price of Oil Change to 75. In addition, they will no…

A: We need to write the MYSQL query to update the price of Oil Change to 75 and remove the maintenance…

Q: 1. Write a query to create the "Student" table (SID, Sname, SAge, SDept, SCity), where the Student…

A: SQL is used to access the rows from the relational database. As we know that relation is made up of…

Q: Using the tables below Now create a query, which will show the equipment rented out with status. You…

A: NOTE:- There were some mistakes in create table command, I have corrected that .      CREATE TABLE…

Q: Modify the PILOT table to add the attribute shown in the following table, with a precision and scale…

A: ALTER TABLE command is used to add new Attribute to the table Syntax: ALTER TABLE table_name  ADD…

Q: Create a new table, named Senior Teaching Staff, using the existing teacher table as your source.…

A: Structured query language is a programming language for storing and processing information in a…

Q: plz help fix the following use oracle  plz create table volunteer( Vol_ID int NOT NULL, name…

A: Problem: Fixing the given query in Oracle.

Q: The Car Maintenance team also wants to store the actual maintenance operations in the database. The…

A: DELETE CASCADE: - When we constitute a foreign key using this option, it deletes the referencing…

Q: The hospital has decided for each year the doctor has worked, he/s be given an extra RM1000. Write a…

A: The given is a table created in Oracle database named Doctor. The DDL (create table) and DML (insert…

Q: artists: artist_id, first_name, last_name, contact_no, Profession ,birth_date ,address awards:…

A: The SQL query is written based on the given details to get the output as mentioned.

Q: SCHEDULE ID Write a query to delete payment details from payments table where discount coupon 'D1'…

A: According to the Question below the Solution

Q: 11. Many queries search by the number of days to ship (number of days between the order and…

A: According to the information given:- We given to define the queries search by the number of days to…

Q: Refer to the following statement DROP TABLE IF EXISTS tb1_name; What does a statement based on…

A: SQL  : SQL definition Structured Query Language is what it stands for. Databases can be accessed and…

Q: Create table customer1( Customer# number primary key, First_name varchar2(25, Last_name…

A: Please find the answer below :

Q: CREATE TABLE DOCTOR (DOC_ID NUMBER(3), DOC_NAME VARCHAR2(9), DATEHIRED DATE, SALPERMON NUMBER(12),…

A: Given: CREATE TABLE DOCTOR(DOC_ID NUMBER(3),DOC_NAME VARCHAR2(9),DATEHIRED DATE,SALPERMON…

Q: CREATE TABLE sales ( "year SMALLINT NOT NULL, "quarter' TINYINT NOT NULL, region VARCHAR (50) NOT…

A: CREATE TABLE sales( 'year' SMALLINT NOT NULL, 'quarter' TINYINT NOT NULL, region varchar(50) NOT…

Q: Use the following precision for each row: Attribute Name Attribute Precision CHAR_WAIT_CHG 6,2…

A: QUESTION Modify the CHARTER table to add the attributes.   ANSWER A new column is added to a table…

Q: i am still receiving the following error ERROR 1072 (42000) at line 9: Key column 'phone_id'…

A: Answer for the issue has been given below with explanation

Q: Implement the above schema with its attributes and relation. • Drop the column PAdress from the…

A: create table syntax:-  create table tableName(colName datatype .....); insert into table syntax:-…

Q: create table students (     student_id serial primary key,     citizen_number char(11) unique not…

A: 3 : Write followings - Write the query that gets all the students with their grades which take for…

Q: this is   the code  i run in sql developer  CREATE TABLE MARKETING_CAMPAIGN( MACampID int,

A: CREATE TABLE MARKETING_CAMPAIGN(MACampID int,MACampName varchar(30) not null,MACampDescr…

Q: I am working on Task 4. Task 4: Create the DISPLAY_OWNER procedure which obtains the first name and…

A: A procedure is an SQL code that can be used over again and again. It has a syntax as: CREATE…

SQL

SQL stands for Structured Query Language, is a form of communication that uses queries structured in a specific format to store, manage & retrieve data from a relational database.  

Queries

A query is a type of computer programming language that is used to retrieve data from a database. Databases are useful in a variety of ways. They enable the retrieval of records or parts of records, as well as the performance of various calculations prior to displaying the results. A search query is one type of query that many people perform several times per day. A search query is executed every time you use a search engine to find something. When you press the Enter key, the keywords are sent to the search engine, where they are processed by an algorithm that retrieves related results from the search index. Your query's results are displayed on a search engine results page, or SER.