The UPDATE command is used to Group of answer choices create a table. add a new record to a table. create a relationship. change values in an existing record.

Q: In a relational database, a select operation is used to delete columns that satisfy specific…

A: The select operation is basically an operation which searches data in the table and acquire or…

Q: What happens if you leave the parameter for a key partition empty (in SQL)?

A: key partition is empty in sql answer for is above step

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: Discuss the differences between triggers and stored procedures.

A: The differences are given below:-

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: Sql server 2019 Get a count of the records in InvoiceArchive, the column header should read Record…

A: SQL Server 2019: SQL Server 2019 is the latest version of Microsoft's relational database management…

Q: Write the purpose of trigger?

A: Answer :    Trigger :                A trigger is a type of pl/sql block structure (stored…

Q: Design two stored procedures as the following (4 marks) Create a PARAMETER based SELECT QUERY stored…

A: Q: Write query based on given values Note: Please ensure to update correct field names as they are…

Q: 1. Create tblEmp with three columns, namely, EID, Name and Salary 2. Create an anonymous PL/SQL…

A: CREATE TABLE tblEmp ( EID INT (10) NoT NULL, Name VARCHAR (20), Salary int (10) NoT NULL, PRIMARY…

Q: Oracle: What is stored procedure with example?

A: A stored procedure is a precompiled collection of one or more SQL statements that can be executed as…

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: is it true that a foreign key is a column in one table that contains the primary key value of…

A: According to the information given:- We have to verify the mentioned statement is true or not.

Q: Create a set of lookup tables

A: In computer science, a lookup table (LUT) is an array that substitutes a simpler array indexing…

Q: stored procedure that will take the Employee ID of a person and checks

A:

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: (PL/SQL) the command need to work on Oracle. just post the command and I will check it in my Oracle.…

A: create or replace trigger salaryset before insert on MyEmployeesfor each rowbeginif :new.salary IS…

Q: Typically, there are two applications for database records. Find out more about them here:

A: What is Database: A database is a structured collection of data stored in a computer system. It…

Q: How do you check to see whether a record in a database really exists?

A: We can check it using Exists operator Any record in a subquery can be checked for existence using…

Q: Error Functions What type of error occurs with a VLOOKUP) function when there is no corresponding…

A: The objective of the question is to identify the type of error that occurs when a VLOOKUP function…

Q: In a relational database, a select operation reduces the size of a table by eliminating columns that…

A: Introduction: Generally speaking, a relational database is a type of database that stores and makes…

Q: 1. Create tblEmp with three columns, namely, EID, Name and Salary 2. Create an anonymous PL/sQL…

A: The Answer is

Q: Differentiate Nested Loop, Hash Join and Merge Join.

A: Differentiate Nested Loop, Hash Join and Merge Join

Q: reate a list of EMPNO, ENAME, HIREDATE, DEPTNO from EMPLOYEE for employee’s with a salary (SAL)…

A: Note: Since you have not provided the language or database name to write the code so I am using SQL…

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

A: Answer:

Q: Write the SQL statements to do the following: Create a trigger named trg_updatecustbalance2 to…

A: The question is to write the SQL query for the given problem.

Q: In a relational database, a select operation is used to delete columns that satisfy specific…

A: In a relational database, a select operation is used to delete columns that satisfy specific…

Q: 1.Cruise(cid, name, number_of_days, price, number_of_stops) Port(pid, city, country,…

A: Trigger named Number_of_Stops is created for table cruise It will be executed when modification…

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: What happens if you leave a key partition's argument empty (in SQL)?

A: Introduction What happens if you leave a key partition's argument empty (in SQL)?

Q: Briefly explain the difference between a nested if statement and a lookup function using a lookup…

A: Given: Briefly explain the difference between a nested if statement and a lookup function using a…

Q: What exactly are triggers? What function do they perform?

A: Actually, triggers are the database object and execute automatically.

Q: Question: (MySQL Syntax) Write a single UPDATE statement to change the due date for all books…

A: To do this we will need to use a join query within the update statement on p.id and b.patron. We…

Q: Describe the technique for views to save reprogramming time.

A: Let us see the answer Introduction The state preservation and restoration procedure relies heavily…

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

A:

Q: 11. Write down necessary condition for dead lock. In tabular form.

A: Question 11. Write down necessary condition for dead lock. In tabular form. Answer 11. Deadlock: A…

Q: Write a trigger which must be executed whenever data is inserted in Student Table. Save insert query…

A: Trigger:  A trigger is a stored procedure in the database which automatically invokes whenever a…

Q: 5: List the names of all salespeople and a count of the number of members they work with. (use uter…

A: Customer_id Name City Grade Saled_ID 1 Ricky Sydney 30 1001 2 Roy Delhi 20 1002 3 Bob London…

Q: Which database operation reads table block directly a) Index scan b) Binary search c) Table scan d)…

A: The question is asking about the specific database operation that directly reads a table block. A…

Q: Under what circumstances should you not create an index for a table?

A: When the table is updated regularly or searches generally return more than 10% of the table rows in…

Q: What are Nested Triggers?

A:

Q: what is Update read ?

A: These four primary functions of permanent storage are to build, read (aka retrieve), delete and…

Q: Write a stored procedure which takes Cid from user and return the Product of        That Category

A: Note:  Since you have not provided the database name to write the procedure so I am using MySQL…