Tag: technology

Questions Related to technology

Examine this procedure: CREATE OR REPLACE PROCEDURE UPD_BAT_STAT (V_ID IN NUMBER DEFAULT 10, V_AB IN NUMBER DEFAULT 4) IS BEGIN UPDATE PLAYER_BAT_STAT SET AT_BATS = AT_BATS + V_AB WHERE PLAYER_ID = V_ID; COMMIT; END; Which two statements will successfully invoke this procedure in SQL *Plus? (Choose two)
technology databases

  1. a) EXECUTE UPD_BAT_STAT;

  2. b) EXECUTE UPD_BAT_STAT(V_AB=>10, V_ID=>31);

  3. c) EXECUTE UPD_BAT_STAT(31, 'FOUR', 'TWO');

  4. d) UPD_BAT_STAT(V_AB=>10, V_ID=>31);

  5. e) RUN UPD_BAT_STAT;

Show answer
Correct Option: A,B
  1. Examine this code: CREATE OR REPLACE PACKAGE comm_package IS g_comm NUMBER := 10; PROCEDURE reset_comm(p_comm IN NUMBER); END comm_package; / User Jones executes the following code at 9:01am: EXECUTE comm_package.g_comm := 15 User Smith executes the following code at 9:05am: EXECUTE comm_paclage.g_comm := 20 Which statement is true?
technology databases

  1. a) g_comm has a value of 15 at 9:06am for Smith.

  2. b) g_comm has a value of 15 at 9:06am for Jones.

  3. c) g_comm has a value of 20 at 9:06am for both Jones and Smith.

  4. d) g_comm has a value of 15 at 9:03 am for both Jones and Smith.

  5. e) g_comm has a value of 10 at 9:06am for both Jones and Smith.

Show answer
Correct Option: B

Which two describe a stored procedure? (Choose two)
technology databases

  1. a) A stored procedure is typically written in SQL.

  2. b) A stored procedure is a named PL/SQL block that can accept parameters.

  3. c) A stored procedure is a type of PL/SQL subprogram that performs an action.

  4. d) A stored procedure has three parts: the specification, the body, and the exception handler part.

  5. e) The executable section of a stored procedure contains statements that assigns values, control execution, and return values to the calling environment.

Show answer
Correct Option: B,C

Which type of argument passes a value from a procedure to the calling environment?
technology databases

  1. a) VARCHAR2

  2. b) BOOLEAN

  3. c) OUT

  4. d) IN

Show answer
Correct Option: C
Explanation:

To solve this question, the user needs to be familiar with the different types of arguments that can be passed between a procedure and the calling environment.

A. VARCHAR2 is a data type used to store character strings in Oracle.

B. BOOLEAN is a data type used to store logical values (TRUE or FALSE) in Oracle.

C. OUT is a parameter mode that is used to pass values from a procedure to the calling environment.

D. IN is a parameter mode that is used to pass values from the calling environment to a procedure.

Therefore, the correct answer is:

The Answer is: C

When creating a function in SQL *Plus, you receive this message: .Warning: Function created with compilation errors.. Which command can you issue to see the actual error message?
technology databases

  1. a) SHOW FUNCTION_ERROR

  2. b) SHOW USER_ERRORS

  3. c) SHOW ERRORS

  4. d) SHOW ALL_ERRORS

Show answer
Correct Option: C
Explanation:

To solve this question, the user needs to know how to check for the errors in an SQL function.

The correct answer is:

C. SHOW ERRORS

Explanation:

When a function is created with compilation errors, the SHOW ERRORS command can be issued to see the actual error message. This command displays the compilation errors of the last CREATE or REPLACE FUNCTION or PACKAGE statement that was executed in the current session. Using this command can help identify and fix any syntax errors or other issues with the function code.

Option A is incorrect because there is no SHOW FUNCTION_ERROR command in SQL *Plus.

Option B is incorrect because SHOW USER_ERRORS is not a valid command in SQL *Plus.

Option D is incorrect because SHOW ALL_ERRORS is not a valid command in SQL *Plus.

Given a function CALCTAX : CREATE OR REPLACE FUNCTION calc tax (sal NUMBER) RETURN NUMBER IS BEGIN RETURN (sal * 0.05); END; If you want to run the above function from the SQL *Plus prompt, which statement is true?
technology databases

  1. a) You need to execute the command CALCTAX(1000); .

  2. b) You need to execute the command EXECUTE FUNCTION calc tax; .

  3. c) You need to create a SQL *Plus environment variable X and issue the command :X := CALCTAX(1000); .

  4. d) You need to create a SQL *Plus environment variable X and issue the command EXECUTE :X := CALCTAX;

  5. e) You need to create a SQL *Plus environment variable X and issue the command EXECUTE :X := CALCTAX(1000);

Show answer
Correct Option: E

Examine this code: CREATE OR REPLACE PRODECURE add_dept (p_dept_name VARCHAR2 DEFAULT 'placeholder', p_location VARCHAR2 DEFAULT 'Boston') IS BEGIN INSERT INTO departments VALUES (dept_id_seq.NEXTVAL, p_dept_name, p_location); END add_dept; / Which three are valid calls to the add_dep procedure ? (Choose three)
technology databases

  1. a) add_dept;

  2. b) add_dept( .Accounting .);

  3. c) add_dept(, .New York .);

  4. d) add_dept(p_location=> .New York .);

Show answer
Correct Option: A,B,D

When creating store procedures and functions which construct allows you to transfer values to and from the calling environment?
technology databases

  1. a) Local variables.

  2. b) Arguments.

  3. c) Boolean variables.

  4. d) Substitution variables.

Show answer
Correct Option: B
Explanation:

When creating stored procedures and functions, the option that allows you to transfer values to and from the calling environment is:

B. Arguments.

Arguments, also known as parameters, are variables that are defined within a stored procedure or function and can be used to receive values from the calling environment. These values can be passed to the procedure or function when it is executed, and the procedure or function can also return values back to the calling environment using these arguments.

Option A, local variables, are variables defined within the scope of the procedure or function and are not used for transferring values to and from the calling environment.

Option C, boolean variables, are variables that can hold a true or false value and are not specifically designed for transferring values to and from the calling environment.

Option D, substitution variables, are variables used in SQL*Plus and Oracle SQL Developer tools and are not used for passing values to and from the calling environment in stored procedures or functions.

So, the correct answer is B. Arguments.

Under which situation do you create a server side procedure?
technology databases

  1. a) When the procedure contains no SQL statements.

  2. b) When the procedure contains no PL/SQL commands.

  3. c) When the procedure needs to be used by many client applications accessing several remote databases.

  4. d) When the procedure needs to be used by many users accessing the same schema objects on a local database.

Show answer
Correct Option: D

The PROCEDURE_ADD_PRODUCT is defined within a package specifications as follows: PROCEDURE_ADD_PRODUCT (P_PRODNO NUMBER,P_PRODNAME VARCHER2); Which procedure declaration can’t be added to package specifications?
technology databases

  1. a) PROCEDURE add_product (p_order_date DATE);

  2. b) PROCEDURE add_product (p_name VARCHER2, P_ORDERED DATE);

  3. c) PROCEDURE add_product (p_prodname VARCHER2, P_PRISE NUMBER);

  4. d) PROCEDURE add_product (p_prize NUMBER, P_DESCRIPTION VARCHER2);

Show answer
Correct Option: D