Rewrite the queryselect *from section natural join classroomwithout using a natural join but instead using an inner join with a using condition.

Q: What type of join is needed when you wish to include rows that do not have matching values?…

A: Refer to step 2 for the answer.

Q: 10. When we find out that there are some miss spellings in the query?

A: Given: Where did we discover certain misspellings in the SQL query?

Q: When do tuples with null values for the title property appear in the select * from student natural…

A: The correct answer for the above question is given in the following steps for your reference.

Q: SQL Querry Find the list of courses who haven’t got any section opened in Spring 2019. (Use outer…

A: It is simple SQL query to fetch the list of courses who haven't got any section opened in Spring…

Q: Explain inner join , outer join and self join in detail.

A: The solution to the given question is: Inner Join It can be used to retrieve only matching data…

Q: Outer join expressions can be computed in SQL without using the SQL outerjoin operation. To…

A: A NATURAL JOIN is an operation which generates an user defined join clause based on the common…

Q: What’s the difference between an equality and a non-equality join?

A: The Equality-JOIN clause is a special keyword in a Structured Query Language (SQL), which is used to…

Q: Salesforce Assignment: Write a SOQL Query to find out all contact where the account id is not equal…

A: Introduction: Similar to the SELECT command in Structured Query Language (SQL), SOQL allows you to…

Q: it is possible to use a NATURAL join, there are some downsides to using this type of join. What are…

A: Joins: Joins in sql commands which are used to combine rows from two or more tables. based on a…

Q: When does the query select * from student natural full outer join takes natural full outer join…

A: Given that: When does the query select * from student natural full outer join takes natural full…

Q: A.Write a query to find all the employees whose salary is more than that of employee 7698

A: Solution: Find the all employees whose salary more then employee 7698 TABLE NAME = EMP Select all…

Q: Why are the NATURAL JOIN keywords not an option for producing a self-join?

A: Natural join: - It is a type of join that combines tables based on columns having similar names and…

Q: How does Oracle 12c distinguish between clauses in a SELECT statement that belong to an outer query…

A: The answer of this question is as follows:

Q: Why aren't the NATURAL JOIN keywords available as a choice for generating a self-join?

A: Introduction : With the help of the NATURAL JOIN keywords, the join is created. Rows from the two…

Q: There are ten columns in the table "customer," yet there is no row. A total of 10 new rows are added…

A: TipA table is a list of connected data kept in a database in table format. A table in relational and…

Q: Explain how the GROUP BY clause works. What is the difference between the WHERE and HAVING clauses?

A: GROUP BY clause: This clause is used to group the number of rows having some similar values. For…

Q: Describe any issues you might have when doing join operations with the NATURAL JOIN keywords.

A: A NATURAL JOIN joins the tables in such a way that the columns with same names appear only once in…

Q: Which tuples with null values for the title property are included in the query select * from student…

A: Given is a query select * from student natural full outer join and we need to tell the condition for…

Q: Explain the difference between an inner join and an outer join.

A: The join clause is a special keyword in a SQL (Structured Query Language), which is used to combine…

Q: Answer part (4) of question 3.37 but use joins using JOIN ON syntax

A: Lets see the solution.

Q: For the following Employee database, write a query to find the ID of each employee with no manager.…

A: With outer join Without outer join  Without outer join : nested query

Q: Why are the NATURAL JOIN keywords not available for generating a self-join?

A: Natural join: - It is a type of join that combines tables based on columns having similar names and…

Q: How many inner joins are possible in the attached scenario? write a query for inner join, left join,…

A: There are 3 inner joins possible. They are: between country and province; here CtrID is the primary…

Q: Rewrite the query to be more specific. choose * from the natural section and then join the…

A: In SQL query, natural join is a type of equi joins constructed so that columns from related tables…

Q: How many rows are returned in a Cartesian join between one table having 5 records and a second table…

A: Cartesian Join: In relational databases, the Cartesian Join between two tables refers to as the join…

Q: Under what circumstances would the query select *from student natural full outer join takesnatural…

A: Select  * from (Student natural full outer join takes) natural full outer join course; The…

Q: Using the STUDENT and PROFESSOR tables, illustrate the difference between a natural join, an…

A: PRODUCT operator: It is used to find the Cartesian product of two attributes present in the…

Q: What's the difference between a left outer join, right outer join, and a full outer join?

A: Basically Join clause is used to join two or more tables. Left outer join: It returns all the…

Q: Given the following ERD, which of the following joins produce the same results. You can assume the…

A: Here, there are three relations named A, B, and C which are shown using the ERD. In this ERD,…

Q: Write a sosl query to find all the Account with the keyword sample in that.

A: Introduction:  SOSL Stands for Salesforce Object Search language which is used to search in the…

Q: In what circumstances might the query select * from student natural full outer join takes natural…

A: A query can either be a request for data results from your database or for action on the data or for…

Q: What is a natural join?

A: NATURAL JOIN It is a JOIN operation that creates an indirect join clause for you on the basis of…

Q: SELECT name, course_id FROM student __________ JOIN takes;

A: Joins are of 4 types and are as follows: Inner Join Left Outer Join Right Outer Join Full Outer…

Q: What is the difference between an outer join and an inner join? Give an example.

A: Given: What is the difference between an outer join and an inner join? Give an example.

Q: . Show the ID of all the authors that do not have any books. a). Using a join: b). Using a…

A: Actually, database is a used to stores the data.

Q: Why does the order of the operands (tables) matter in an EXCEPT (MINUS) query but not in a UNION…

A: MINUSMINUS operator is used for getting the result that is present in the first table but not in the…

Q: What is outer Join?

A: What is outer Join? This join is used to return results by combining rows from two or more tables.It…

Q: Rewrite the following query with two subqueries into multicolumn subquery. The subquery should use a…

A: Question a). Rewrite the following query with two subqueries into the multicolumn subquery. The…

Q: When is an outer join used instead of a natural join?

A: Natural join It eliminates the duplicate columns and the join is done in between the values in…

Q: When should you use an exterior join rather than a natural join?

A: Introduction: Natural join It removes duplicate columns and performs the join between the values in…

Q: 4. Write two queries to list the ID of all the authors that do not have any books. a) Using a join:…

A: The requirement is to fetch the author_id from author table for the records where there is no…

Q: In this assignment your task is to Write sosL query to find the all the account and contact in which…

A: Brief about the SOSL:  SOSL Stands for Salesforce Object Search language which is used to search in…

Q: Which operator is used in the join condition to perform an outer join? Select one: a.- b.> O c.(+)…

A: OUTER JOIN: Outer Join is the joining method in which that gets all rows with matching values in…

Q: Grace hash join is usually the best algorithm for joins in which the join condition includes an…

A: Hello student Greetings Hope you are doing great. Thank You!!!

Q: Can an outer join be easily implemented when joining more than two tables? Why or why not?

A: Outer join is not easily implemented in more than two tables.

Q: Using the STUDENT and PROFESSOR tables, illustrate the difference between a natural join, and…

A: Explanation: PRODUCT operator: It is used to find the Cartesian product of two attributes present…

Intermediate SQL Concepts

A query is a request for data or information from one or more database tables. This information could be presented in the form of pictorials, graphs, or complicated findings which helps in easy interpretation. Structured Query Language (SQL) is the most widely used programming language for retrieving and organizing data from relational databases. Collection of tables with rows and columns is referred to as a database. SQL is the language of databases. It makes it easier to extract specific data from databases, which can then be used for analysis.