Multiple records can have the same primary key. True or False?

Q: You have a table that contains the following fields: MemberLastName, MemberFirstName, Street, City,…

A: Here, we have given a table with a set of records. This table contains 75000 records. The records…

Q: Does the DBMS or the user make the choice of which index to use to accomplish a given task?

A: Solution:-              The DBMS, net the user, choose which  index   to use to accomplish a…

Q: What is the primary distinction between a relationship and a conventional file?

A: File system : 1. Files operate locally, while DBMS saves data directly to a database. 2. Saves data…

Q: What happens if a user tries to add data to a database and does so in a way that causes a record to…

A: Answer is given below .

Q: What kind of join would we need to use to merge only records that appear in both DataFrame A and…

A: Inner join joins the dataset having common column in both data set. Using inner join we can display…

Q: The dataset work.seinfeld contains a variable date which is missing for some of the records. Which…

A: The correct option is d. data = work.seinfeld is present in option d. only. It contains the variable…

Q: Executing an UPDATE statement will return______.     the number of records updated     the set…

A: UPDATE Statement: The UPDATE statement is used to update records in a table. Syantx: UPDATE…

Q: If a user attempts to add data to the database, under what situations may this result in a record…

A: The query seeks to ascertain the situations under which the user's attempt to insert data into the…

Q: When a user attempts to add data to the database, what are the odds that the effort will result in…

A: Database: It is a collection of data stored on a computer system that can be accessed via the…

Q: adding data may resu

A: Constraint violation A problem that signals a request that is syntactically correct but…

Q: You accidentally deleted all the orders in the ORDERS table. How can the error be corrected after a…

A: COMMIT: The “COMMIT” keyword is used to save the recently inserted columns in the above and current…

Q: e. Create a form for the records and name it frmMovies f. Query the table to look out for movies…

A: From the following table, write a SQL query to find the name and year of the movies. Return movie…

Q: The dataset work.seinfeld contains a variable date which is missing for some of the records. Which…

A: The correct option is d. data = work.seinfeld is present in only option d. It has the variable date.…

Q: Can an attempt to put data in the database by a user result in a record being created that violates…

A: IN SQl : Constraint: 1.it means condition. 2.if we define constraint on any attribute so, if fulfill…

Q: Q 4: Suppose we have the following student table in database. You have to write: • Form load event…

A: Answer :

Q: In the Oracle DBMS, primary and unique keys generally have indexes created automatically, but you…

A: The answer is

Q: When a view is destroyed, what happens to the data that was previously presented by the view?

A: Introduction: An Oracle view is a named and verified SQL query that is saved in the Oracle…

Q: In user-defined records, the first step that you need to do is to define or declare the type and…

A: 1) User define records are the record variables whose structure is defined by the user, that means…

Q: Q1.True or false? For indexed sequential access the primary key field must contain unique key values…

A: Indexed sequential access is a method of searching for a single file in operating systems.

Q: What happens if a user attempts to add data to a table, and the addition would cause the record to…

A: NOTE: -The explanation is done as per the Oracle database. If any attempt is being made to add data…

Q: rite a script that creates a stored procedure named sp_dep4207. When the stored procedure is…

A: Given  Procedure name: sp_dep4207 This procedure has to return all rows in the Faculty table for…

Q: PL_1 1 DECLARE 2 e_record_exists EXXCEPTION; 3 PRAGMA _(e_record_exists, -02292); 4 BEGIN…

A: Here, two PL/SQL programs are given. Here we have to fill the blanks in the code.

Q: Create reports containing the following details from the database: Q1 How many books are there in…

A: SELECT category, count(category) AS "numberOfBooks",FROM booksWHERE category='computer'; The above…

Q: It is possible that the user's attempt at adding data may result in the creation of a record that…

A: The data in the database must be updated, added, or deleted according to the user's requirements.…

Q: What command is used to modify an index?

A: The ALTER INDEX statement is used to alter the definition of an index.

Q: Given the following table ТАBLE BOOKS Column Null? Туре ISBN NOT NULL NUMBER TITLE NOT NULL…

A: Given: To find the command that will delete all records that have undefined version is:

Q: How likely is it that an attempt by a user to add data to the database would result in the creation…

A: There are mainly three operations that have the ability to change the state of relations, these…

Q: For indexed sequential access the primary key field must contain unique key values for each record.

A: The above statement is True. All the primary key field values are by default Unique and not null.…

Q: What is the difference between a DELETE command and TRUNCATE command?

A: DELETE and TURNCATE command are used in SQL operation . DELETE command is DML(data manipulation)…

Q: What is the maximum number of records that can be modified with a single UPDATE command?a. 1b. 2c.…

A: UPDATE command: User must use UPDATE command to change the existing data in a table. UPDATE command…

Q: Create a hashing algorithm for uniquely identifying records. Make sure you describe how it works.

A: The Hashing Algorithm is a method of encrypting data. The hashing algorithm for uniquely defining…

Q: Create a database trigger for the following situations:                       update the…

A: A block of SQL or PL/SQL code that is automatically triggered, by the DBMS when some specific data…

Q: Write the MongoDB Shell code to completely delete the entire database, including all collections and…

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

Q: Create a view name TopLevelCust view. It consists of the number, name, address, balance, and credit…

A: SQL view: The views are virtual/ logical table that is used to view or manipulate parts of the…

Q: How many Records and Fields will be appearing after executing the following ?query SELECT item,…

A: In table it will group the record by items so. Total individual items are 1)pencil 2) binder 3)desk…

Q: True or False? An alias is used to execute tasks such as inserting, deleting, and updating records.

A: Ans: False that An alias is used to execute tasks such as Inserting, deleting and updating records.

Q: Why is it important to write to a log before changing the database values?

A: Given:- Why is it important to write to a log before changing the database values?

Q: a. Display the employees where the salary is 2200-Upload Screen shot b. Display the employees where…

A: Solution for the above question is as follows:

Q: If a user attempts to add data to the database, it is conceivable that a record be created that…

A: Constrain are set of rules that imposed on database for various operation in records for database ,.…

Q: A record may be created that violates an enabled constraint if a user tries to contribute data to…

A: It is explained in this inquiry how a database error resulted in the creation of a record that…

Q: Is it possible for a user's effort at adding data to the database to result in the creation of a…

A: A database is the an ordered collection of data saved on a computer system that can be accessed…

Q: It's possible that the user's attempt to add data will result in the creation of a record that…

A: Introduction: In order to fulfil the requirements of the user, the data included in the database…

Q: In MS Access, if you have two related tables and you check the box to enforce referential integrity,…

A: Referential Integrity is a process of referring a column in primary table as a reference to the some…

Q: The following command is used for inserting records a) INSERT b) ADD c) Both of the above d) None of…

A: SQL commands are of two types namely, DDL (Data Definition Language) and DML (Data Manipulation…

Q: Which keyword is used to query data from the database? O EXTRACT EXPORT SELECT O INSERT INTO QUERY…

A: In order to read data or query a data from database we need to used SELECT statement. Syntax of…

Q: In a SELECT statement, which clause is used to limit the records that will be selected? a. LIMIT b.…

A: In  SELECT statement, the “WHERE” clause is used to restrict the records retrieved from a table.…

Q: To restore the values of a table, you must use the. .command. Select one: a.COMMIT b.ROLLBACK…

A: The correct option is : b.) ROLLBACK

Procedures in SQL

A pre-compiled stored procedure is a logical unit made up of one/more SQL statements (SQL stands for Structured Query Language). The database server saves it as an object. An SQL procedure is a collection of SQL statements and logic that is written and saved to accomplish a specified goal. An SQL procedure consists of a name, a parameter list, and a set of Transact-SQL statements. Stored procedures are stored as named objects in SQL Database Server.