As Question 3 A correlated nested query O uses tables from both the inner and the outer queries is executed once for every tuple in the outer query table O both 1 and 2 O neither 1 and 2
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- SOQL Assignment: You are required to construct a SOQL Query in which we must locate all of the contacts whose accountld is not null and order the first names in descending order in order to complete the assignment.*Develop a SQL Query Display all the resorts names whose star-rating ranges between 4 and 5. Sort the result set in the ascending order of star rating. RESORT MANAGEMENT SYSTEM Town Pointofinterest Manager PK townID Number managerID Number PK pointID Number PK townname Varchar(30) varchar(30) varchar(30) describe Varchar(30) name state varchar(30) address opentime varchar(10) %23 longitude varchar(30) closetime varchar(10) city varchar(20) varchar(30) Number latitude phone varchar(15) HAS FK townID Number summertemp wintertemp Number sealevel Number GIVES- Resort Guest Review PK resortiD Number guestID Number PK FK,PK guestiD Number resortName varchar(30) name varchar(30) FK,PK resortID Number street varchar(30) MANADES address varchar(30) + varchar(20) dateofreview Date townname varchar(30) BOOKS country varchar(30) email varchar(150) FK townid Number comments phone varchar(15) starRating Number FK managerID Number Booking HAS PK bookingiD Number CabinCost HAS FK guestid Number HAS…Write a SQL query to add constraint PRIMARY KEY to the column Doc_ID with a suitable constraint name Mart 250
- What are some common uses for the STRING_AGG function in SQL?SQL ( ORACLE SQL DEVELOPER ) : THIS IS FIRST , SECOND AND THIRD TABLE for the Task 1 to solve : create table author_45( auth_name char(50), gender char(1), age number(3), nationality char(50), PRIMARY KEY (auth_name) ); create table book_45( isbn number(10), title char(50), ver_no number(2), publisher char(50), PRIMARY KEY (isbn) ); create table writtenBy_45( isbn number(10), auth_name char(50), yr_published number(4), price number(3), no_copy number(4), PRIMARY KEY (isbn,auth_name), foreign key (isbn) references book_45, foreign key (auth_name) references author_45 ); insert into author_45 values ('Benoit','F',42,'French'); insert into author_ 45 values ('Antonini','M',33,'Italian'); insert into author_ 45 values ('McAven','F',31,'Australian'); insert into author_ 45 values ('Williams','M',90,'British'); insert into book_45 values (101,'atabases',1,'Possum'); insert into book_45 values (202,'SQL Primer',2,'Hall'); insert into book_45 values…Problem 9 Write a query to count the number of invoices.
- True or False below: Given two relations named A and B, if we q-JOIN A and B, the maximum number of attributes in the result relation could be (the number of attributes of A) times(*) the number of attributes of B). * in an SQL SELECT statement means “all the tuples”. In relational algebra, Cartesian Product (X) can be implemented using the q-JOIN operator. Cartesian Product ISA q-JOIN where q-condition always evaluates to true. SQL is based on Predicate Calculus. A query in SQL always specifies what should be included in the query result.Salesforce Assignment : SOSL In this assignment your task is to Write soSL query to find the all the account and contact in which we have the test word which means any find in the account and contact that will consist the test keyword is written by this query.Write an SQL query that uses a multiple-column subquery in a FROM clause. Explain what the query is intended to do. Write an SQL query that is based on multiple tables and uses a subquery with the GROUP BY statement and HAVING clause. Explain what the query is intended to do. Write an SQL query that is based on multiple tables and uses a multiple-row subquery in a WHERE clause. The subquery will include the GROUP BY statement and another multiple-row subquery in a HAVING clause. Explain what the query is intended to do. Write an SQL query that joins three tables and uses any type of a subquery. Explain what the query is intended to do. Write an SQL query that is based on multiple tables and uses the DECODE function. Explain what the query is intended to do.
- In an OUTER JOIN query, the outer join operator (+) is placed after which table?Write advantage and disadvantage of a queryBased on the following authorication commands (ordered from 1 to 4), which of the following privileges is true, assuming that Ali is the owner of the database? Order By Ali 1 2 3 4 Select one: Omar Ali Ali Command Grant Select on Employee to Omar with grant option; Grant Select on Employee to Samer with grant option; Grant Update on Employee to Omar with grant option; Revoke Select on Employee From Omar Cascade; a) Ali and Omar have Update privilege on employee Ali has select privilege on employee b) Ali and Omar have Update privilege on employee Omar and Samer have select privilege on employee elect c) Ali and Omar have Update privilege on employee Ali and Omar have select privilege on employee d) Ali and Omar have Update privilege on employee Ali, Omar and Samer have select privilege on employee