What are triggers? What purpose do they serve? How do you gain the functionality of a trigger using Access 2016?

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: When do triggers happen, and what are they? I'm confused as to what role they play. [In Access 2016,…

A: What are triggers? Answer: SQL triggers are procedures that automatically carry out an action in…

Q: Oracle Database 18c XE comes with a sample database user named HR. This user owns several database…

A: SQL*PLUS is  an batch query tool  .It is a command-line user interface, a Windows Graphical User…

Q: What is a trigger, and how is it used?

A: Given: What is a trigger, and how is it used?

Q: Write a row-level trigger that executes before updating a project's location in the project table.…

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

Q: in sql  If you have not yet used the COMMIT command to store the changes permanently in the…

A: Answer: a. True

Q: What are triggers precisely? What purpose do they serve? How do you configure Access 2016 to include…

A: TRIGGERS: Triggers are SQL statements that are performed automatically whenever the database…

Q: The Developers team also wants you to ensure that emails are converted to lowercase after an update…

A: A collected information or structured data in the form of table that are stored electronically which…

Q: Which integrity restrictions are different?

A: Definition: SQL is the acronym for Structured Query LanguageIt enables access to and control over…

Q: PayRate for an irregularities in terms of updates.  The ChangeID is to be autogenerated and should…

A: Lets see the solution.

Q: How do you perform in Access?

A: MS Access is a database management system through which you can create, manipulate, maintain and…

Q: A table can be deleted from the database by using the _____ TABLE command. Select one: a. MODIFY b.…

A: Drop function is used to delete the table from a database.  Delete is used to delete a row from a…

Q: Which attribute may return NULL?     %FOUND     %ISOPEN     %NOTFOUND     %ROWCOUNT

A: %FOUND A cursor attribute that can be appended to the name of a cursor or cursor variable. Before…

Q: Write the SQL command to revoke user Stetson's privilege.

A: The revoke command can be used to revoke all or selective privileges of a user. see the command in…

Q: What's the distinctions between constraints and triggers?

A: Difference between Triggers and Constraints:

Q: triggers. Triggers should be meaningful.

A: According to the question we need to write the 5 Triggers:

Q: Create a trigger (separately not in any package) called CHECK_SALARY_TRG on the EMPLOYEES table that…

A: Defines a new trigger. User-defined triggers are not supported in Greenplum Database. Synopsis…

Q: What are nulls? Which field cannot accept null values? Why?

A: NULL is a special keyword in SQL that depicts an empty value. It signify a missing or unknown…

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

A: The answer is

Q: How does Oracle 12c identify a substitution variable in an SQL command?

A: Substitution variable:   The Oracle 12c has an SQL command known as the substitution variable. It is…

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: What's the Distinction Between Triggers and Rules?

A: Introduction: What Is the Difference Between Triggers and Rules is the query, and the answer is in…

Q: Q2:Write a row-level trigger that executes before updating a project’s location in the project…

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

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

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

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: How do you specify conditions for an Access query?

A: How do you specify conditions for an Access query?

Q: Which are the two types of integrity constraints?

A: SQL represents Structured Query Language It allows you to get to and control information bases…

Q: The previous administrator created a table named CONTACTS, which contains outdated data. You want to…

A: DROP TABLE is the answer  Because DROP command delete both table and data present in it. Option…

Q: Examine the following table and decide which set of attributes breaks the 3NF rule: BOOK (booklD,…

A: Here book ID is primary key as it is underlined rest all attributes are dependent on the primary key…

Q: Which statement is not correct? The goal of batch controls is to endure that during processing a.…

A: Given:- Which statement is not correct? The goal of batch controls is to endure that during…

Q: EF Core API will create which table for the following context? In other words, what would be the…

A: Below is the answer with explanation:

Q: What exactly are triggers? What function do they serve? How do you use Access 2016 to get the…

A: What exactly are triggers? Answer: Triggers are  SQL procedure that automatically performs the…

Q: Which of the following statements assigns the role CUSTOMERREP as the default role for Maurice Cain?…

A: The correct statement to assign the role CUSTOMERREP as the default role for Maurice Cain is as…

Q: What are triggers precisely? What purpose do they serve? How do you utilise Access 2016 to get…

A: Triggers: Triggers are SQL procedures that execute an action automatically when a specified command,…

Q: 9. You want to track date and time of the last write access per row in SQL server? a) Add TIMESTAMP…

A: Question 9. You want to track date and time of the last write access per row in SQL server? a) Add…

Q: Task 8: Create the DEL_OWNER procedure to delete the owner whose number is stored in I_OWNER_NUM…

A: Database: Each and every organization contains a certain amount of data that needs to be stored for…

Q: For each of the following statements, circle T (True) or F (False)

A: Defined the given statement true or false

Q: Create a trigger named trg_line_total to write the LINE_TOTAL value in the LINE table every time…

A: Given : Create a trigger named trg_line_total to write the LINE_TOTAL value in the LINE tableevery…

Q: c) Suppose you want to move from one tablespace to another tablespace. How can you automatically…

A: In database recovery undo records are used to undo any uncommitted changes applied from the redo log…

Q: reate access table relationships as shown in the ERD above.

A: ENTITIES The entities in the given ERD are given below. DOCTOR PATIENT APPOINTMENT BILL

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.