Which of the following keywords allows the user to delete a record from a table, even if rows in another table reference the record through a FOREIGN KEY constraint? ( refer to the tables in the JustLee Books database).                 a. CASCADE                                                                                                        b. CASCADE ON DELETE                                                                                     c. DELETE ON CASCADE                                                                                      d. DROP                                                                                                              e. ON DELETE CASCADE

Q: Which joins describes a camparision of the columns of two tables with the < operater? a) Full…

A: The question is asking us to identify the type of join operation in SQL (Structured Query Language)…

Q: Which of the following statements are true about the advantages of creating relationships between…

A: Tables in database: Tables is used to organise information in the form of rows and columns. Table is…

Q: Which joins describes a camparision of the columns of two tables with the < operater? a) Full…

A: The question is asking us to identify the type of join operation in SQL that involves a comparison…

Q: How are NULL values included in a new record being added to a table?

A: NULL values included in a new record being added to a table:

Q: Which SQL Command is used to delete a table from the database: a) Update b) Alter c) Drop d) Şelect

A: Update Command is used to update the value in a table. Alter command is used to change the value in…

Q: When does Oracle 12c construct an index for a table by itself?

A: Create Index Create Index create index on one or more columns of a table, a partitioned table, an…

Q: If you wanted to update another table with new records for every row updated, deleted, or inserted…

A: Introduction: In a database management system, a trigger is a set of instructions that the system…

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: Which SQL statement defines the FOREIGN KEY constraint on the DEPTNO column of the EMP table?

A: To which SQL statement defines the FOREIGN KEY constraint on the DEPTNO column of the EMP table.

Q: Create an Oracle sequence to generate values for volunteer numbers. The sequence should startwith…

A: sequence is used to generate a unique value in a primary key column. After creating sequence…

Q: What is the maximum number of PRIMARY KEY constraints allowed for a table? ( refer to the tables in…

A: Primary key constraints The primary key constraint uniquely identifies each record in a table.…

Q: In PL/SQL, which of the following variable type is used to declare a record? %TYPE O %RECORDTYPE…

A: here have to determine in plsql which of the following variable type is used to declare a record.

Q: In Oracle database, If we have Iname field in our table then we can use this function to change the…

A: 1> Answer: 2nd option is correct. I. LPAD(LNAME,15,") is correct answer. Explanation: The…

Q: How many NOT NULL constraints can be created at the table level by using the CREATE TABLE command? (…

A: Utilizing the CREATE TABLE command, "0" NOT NULL constraints can be created at the table level.…

Q: What is the difference between disabling a constraint and dropping a constraint? ( refer to the…

A: Difference between disabling a constraint and dropping a constraint: The differences are given as a…

Q: uiring a CustomerID to exist in a Primary table before it can exist in a fore able is an example of…

A: Correct answer :True

Q: I have the following SQL Script: CREATE OR REPLACE TRIGGER SCSP_VIEW_UPDATE INSTEAD OF UPDATE ON…

A: We have to create   How to add logic so that blanks and empty strings cannot be used to update…

Q: write a trigger that will be activated after a DELETE activity. The trigger will INSERT all deleted…

A: The solution is given in the below step with explanation

Q: Which of the following lists all books published by the publisher named Printing Is Us? (refer to…

A: NATURAL JOIN A NATURAL JOIN is a kind of JOIN used along with SELECT statements in most of the…

Q: What are the after triggers ? Select one: a. Both b and c b. These triggers run after an insert,…

A: Answer to the above question is in step2.

Q: When does Oracle 12c construct an index automatically for a table?

A: An index is an optional structure associated with tables and collections, which you can explicitly…

Q: n sql  An index can increase the performance of SQL queries that search large tables Select one: a.…

A: Indexes in Oracle and different knowledge bases area unit objects that store references to data in…

Q: Write a trigger that will be activated when a new customer is added to the Customers table and that…

A: Solution :This is a trigger that will be activated when a new customer is added to the Customers…

Q: In SQL, what syntax is used to pull back records from a database? a. FIND IN b. LOCATE IN c. PULL…

A: 1) SQL is a standard language for storing, manipulating and retrieving data in databases 2) The…

Q: How many times has each book title been borrowed? Give the new column an alias.

A: Hey there, I am writing the required solution based on the above given question. Please do find the…

Q: When does Oracle 12c automatically create an index for a table?

A: The index in Database Relations: An index indicates the entry of each value in the column(s) of the…

Q: in mySQL, an outer join will only return records that exist in both the left and right tables. True…

A: Solution :  in mySQL, an outer join will only return records that exist in both the left and right…

Q: When does Oracle 12c automatically generate an index for a table that it has been given access to?

A: Answer:

Q: When does Oracle 12c construct an index automatically for a table?

A: The index in Database Relations: An index represents each value in the relation or cluster's…

Q: Which of the following types of restrictions can be viewed with the DESCRIBE command? ( refer to the…

A: Answer: NOT NULL constraint: 1.A column can hold NULL values by default. 2. The NOT NULL constraint…

Q: USE AgeDx DROP TABLE #temp SELECT * INTO #temp FROM [dbo].[DxAge_1] -- 4233546 rows INSERT INTO…

A: In this answer, we will address a specific question related to SQL syntax and formatting, ensuring…

Q: If you add a record to the wrong table, what’s the simplest way to remove the record from the table?

A: To solve this question let us first take an example of the following database and analyze it to…

Q: Write a SQL statement to count all the records from STUDENT table per department and arrange in…

A: To group the table as per department, use GROUP BY clause.  To arrange the record in ascending…

Q: The data dictionary plays what function in the DBLC procedure?

A: Introduction: The definition of data properties and their linkages are stored in the data…

Q: What is the difference between the delete and drop table commands?

A:

Q: Which of these is more important, Primary Key or Unique? In the JustLee Books database, you may look…

A: Given: We  need to  explain  about  Primary key   and unique key.

Q: When does Oracle 12c construct an index for a table by itself?

A: Introduction: Indexes are used to rapidly identify data in a database table without having to look…