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Database SA2
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Question | Answer |
---|---|
Which keyword is omitted in the declaration section of the procedure? _____ | DECLARE |
Subprograms become the building blocks of packages and triggers. | True |
Subprograms are implicitly shared. | False |
The code below is a correct example of passing parameters by combination notation. add_dept (p_loc=>1400, 'EDUCATION' ); | False |
A procedure can be invoked in another procedure. | True |
The positional parameter passing uses the associate operator. | False |
If Combination notation is used, the positional parameters must come first before the named parameters. | True |
The Positional parameter passing is the common method of passing parameters. | True |
How many parameters are there in the given code? CREATE or replace procedure raise_sal (empid my_employees.employee_id%TYPE := 1234, emp_raise number) ISBEGINupdate employees set salary = salary + (salary * (emp_raise/100) where employee_id = emp; END; | 2 |
Three ways of passing parameters from the calling environment: | POSITIONAL, NAMED, COMBINATION |
Which type of parameter passing uses an association operator? | Named |
The functions used in SQL statements cannot use OUT or _____ modes. | IN OUT |
In stored function, the RETURN clause is used instead of ____ mode. | OUT |
In PL/SQL ___________, the function identifier acts like a variable whose value depends on the parameters passed to it. | EXPRESSION |
The functions used in SQL statements cannot use ____ or IN OUT modes. | OUT |
A function must have a _______ clause in the header and at least one RETURN statement in the executable section. | RETURN |
The _____ are named PL/SQL blocks that are compiled and stored in the database. | SUBPROGRAMS |
Subprograms are named PL/SQL blocks that are compiled and stored in the _______. | DATABASE |
You cannot invoke a procedure from inside an SQL statement. | True |
Subprograms are explicitly shared. | True |
The OUT parameter mode supplies an input value, which can be returned (output) as a modified value. | False |
False | True |
The DEFAULT keyword is used to assign a default value for formal parameters. | False |
Which parameter mode can be assigned a default value? IN OUT IN OUT | IN |
Given the procedure below, how many parameters will return a value to the calling environment? CREATE OR REPLACE PROCEDURE show_emps (p_emp_id NUMBER, p_department_id OUT number, p_hiredate IN OUT DATE) IS begin . . . . . . End; | 2 |
What is the error of the given code? BEGIN add_dept(name =>'new dept', 'new location'); END; | Positional parameter must come before named parameter |
Subprograms are implicitly shared. | False |
The code below is a correct example of passing parameters by combination notation. add_dept (p_loc=>1400, 'EDUCATION' ); | False |
A procedure can be invoked in another procedure. | True |
The positional parameter passing uses the associate operator. | False |
If Combination notation is used, the positional parameters must come first before the named parameters. | True |
The Positional parameter passing is the common method of passing parameters. | True |
How many parameters are there in the given code? CREATE or replace procedure raise_sal (empid my_employees.employee_id%TYPE := 1234, emp_raise number) ISBEGINupdate employees set salary = salary + (salary * (emp_raise/100) where employee_id = emp; END; | 2 |
Three ways of passing parameters from the calling environment: | POSITIONAL, NAMED, COMBINATION |
Which type of parameter passing uses an association operator? | Named |
The functions used in SQL statements cannot use OUT or _____ modes. | IN OUT |
In stored function, the RETURN clause is used instead of ____ mode. | OUT |
In PL/SQL ___________, the function identifier acts like a variable whose value depends on the parameters passed to it. | EXPRESSION |
The functions used in SQL statements cannot use ____ or IN OUT modes. | OUT |
A function must have a _______ clause in the header and at least one RETURN statement in the executable section. | RETURN |
The _____ are named PL/SQL blocks that are compiled and stored in the database. | SUBPROGRAMS |
Subprograms are named PL/SQL blocks that are compiled and stored in the _______. | DATABASE |
You cannot invoke a procedure from inside an SQL statement. | True |
Subprograms are explicitly shared. | True |
The OUT parameter mode supplies an input value, which can be returned (output) as a modified value. | False |
False | True |
The DEFAULT keyword is used to assign a default value for formal parameters. | False |
Which parameter mode can be assigned a default value? IN OUT IN OUT | IN |
Given the procedure below, how many parameters will return a value to the calling environment? CREATE OR REPLACE PROCEDURE show_emps (p_emp_id NUMBER, p_department_id OUT number, p_hiredate IN OUT DATE) IS begin . . . . . . End; | 2 |
What is the error of the given code? BEGIN add_dept(name =>'new dept', 'new location'); END; | Positional parameter must come before named parameter |
In stored function, the ______ clause is used instead of OUT mode. | RETURN |
A function must have a RETURN clause in the _____ and at least one RETURN statement in the executable section. | HEADER |
What follows the RETURN keyword at the function header? | DATA TYPE |
What is missing in the code below? create or replace function sample return number is num number(2); begin num := 5+5; end; | No return value |
The purpose of the OR REPLACE clause is to ______ an existing procedure. | OVERWRITE |
In Procedure, all parameter modes must be specified. | True |
In the given Procedure header, the underlined clause/keyword is optional. CREATE OR REPLACE PROCEDURE name [parameters] IS|AS | True |
The symbol >> is used for association operator? | False |
To invoke a procedure from another procedure, use a direct call inside an executable section of the block. | True |
The Named parameter passing is the common method of passing parameters. | False |
Another way of initializing a default value for parameter is by using assignment operator. | True |
What is the symbol used for association operator? | => |
What is missing in the given code below? CREATE or replace procedure raise_sal (empid my_employees.employee_id%TYPE := 1234, emp_raise number) BEGIN update employees set salary = salary + (salary * (emp_raise/100) where employee_id = emp; END; | Not in the options |
The functions used in SQL statements cannot use _____ or IN OUT modes. | OUT |
What follows the RETURN keyword at the function header? | DATA TYPE |
Which of the statement below is valid? Assuming that get_sal procedure exists with one OUT parameter. | x:=100; DBMS_OUTPUT.PUT_LINE(get_sal(x)); |
In PL/SQL ___________, the function identifier acts like a variable whose value depends on the parameters passed to it. | FUNCTION CALLS |
When invoking a function as part of a PL/SQL expression, you can use a _______ to store the returned result. | VARIABLE |
A _______ triggers execute whenever a particular event occurs within an application. | APPLICATION |
A row trigger fires once for each row affected by the triggering DML statement, either just BEFORE the row is processed or just AFTER. | True |
The database event triggers are fired by non-SQL events in the database. | True |
A row trigger may SELECT from a mutating table. | False |
The ON SCHEMA cannot be used with SHUTDOWN and STARTUP events. | True |
The ON SCHEMA fires the trigger only for _______ sessions. | OWN |
The ______ triggers can either be ON DATABASE or ON SCHEMA. | DDL |
You can use triggers to generate derived column values _________. | AUTOMATICALLY |
Event determines which DML operation causes the trigger to fire. Values are DELETE, UPDATE [OF column], and ______. | INSERT |
The conditional predicates are: _______, INSERTING, UPDATING. | DELETING |
A row trigger fires once for each row affected by the triggering DML statement, either just BEFORE the row is processed or just AFTER. | True |
A ON SCHEMA fires the trigger for DDL on all schemas in the database. | False |
The CALL is a statement is used to invoke procedure in a trigger. | True |
The ______ fires the trigger only for your own sessions. | ON SCHEMA |
Trigger executes ________ whenever the associated action occurs. | Implicitly |
The ____ trigger timing executes the trigger body before the triggering DML event on a table. | BEFORE |
You specify a row trigger using __________clause. | FOR EACH ROW |
The ________trigger is the default type of DML trigger. | STATEMENT |
The Conditional Predicates keywords are automatically declared Boolean variables which are set to TRUE or FALSE by the Oracle server. These keywords maybe used in the trigger body instead of UPDATE, INSERT, DELETE. | True |
A statement-level trigger fires once for each row affected by the triggering DML statement, either just BEFORE the row is processed or just AFTER. | False |
You specify a row trigger using FOR ROW clause. | False |
The database triggers are fired by non-SQL events in the database. | False |
The ON DATABASE fires the trigger only for your own sessions. | False |
The ON SCHEMA fires the trigger only for your own sessions. | True |
A row-level trigger must not query or modify a mutating table. | True |
A ________trigger must not query or modify a mutating table. | ROW-LEVEL |
An ON DATABASE fires the trigger for ____ on all schemas in the database. | DDL |
The __________ cannot be used with SHUTDOWN and STARTUP events. | ON SCHEMA |
A ________ table is an object that is currently being modified by a DML statement. | MUTATING TABLE |
The ______ fires the trigger only for your own sessions. | ON SCHEMA |
To invoke package subprograms, fully ____the (public) subprogram with its PACKAGE NAME. | QUALIFY |
The _____ is the interface to your applications that declares the constructs (procedures, functions, variables, and so on) which are visible to the calling environment. | PACKAGE SPECIFICATION |
The OR REPLACE option deletes an existing package body. | False |
Variables declared in the package specification are initialized to NULL by default. | True |
Trigger executes explicitly whenever the associated action occurs. | True |
Since triggers are never explicitly invoked, they cannot receive parameters. | True |
Database triggers execute automatically whenever a data event such as _______ occurs. | DML, DDL |
Which will view the detailed code and status of the trigger in data dictionary? | USER_TRIGGERS |
A DML trigger is a trigger that is automatically fired (executed) whenever an SQL DML statement (INSERT, UPDATE, or DELETE) is executed. | True |
DML Trigger is classified in two ways: when they execute, how they execute. | False |
The given trigger header contains no error. CREATE OR REPLACE TRIGGER emp_del_trigg AFTER DELETE ON employees BEGIN <assume valid PL/SQL statements here> END; | True |
You cannot create a DDL trigger that refers to a specific database object. | True |
The ON SCHEMA fires the trigger only for your own sessions. | True |
A ON DATABASE fires the trigger for DDL on all schemas in the database. | True |
The code below will: CREATE OR REPLACE TRIGGER log_create_trigg AFTER CREATE ON SCHEMA BEGIN INSERT INTO log_table VALUES (USER, SYSDATE); END; | The trigger fires whenever any type of object is created in your schema. |
The _________ are fired by non-SQL events in the database. | Database event trigger |
A SYSTEM trigger execute automatically whenever a data event or a system event occurs. | False(DATABASE TRIGGER) |
Parameters in subprograms are optional. | True |
The actual is a special form of a variable, whose input values are initialized by the calling environment when the subprogram is called, and whose output values are returned to the calling environment when the subprogram returns control to the caller. | False |
The executable section of the procedure body requires a minimum of _____ statement. | 1 |
In Procedure, the default parameter mode is IN. | True |
The IN parameters can only be read within the procedure and cannot be modified. | True |
The formal parameters can be literal values, variables, or expressions that are sent to the parameter list of a called subprogram. | False |
If Combination notation is used, the _______ parameters must come first. | POSITIONAL |
What is missing in the procedure header? CREATE PROCEDURE raise_sal(p_id IN NUMBER, p_sal IN NUMBER) IS BEGIN ... END; | Nothing is missing |
The block structure of the subprograms is similar to the structure of _____ blocks. | ANONYMOUS |
The block structure of the subprograms is similar to the structure of anonymous blocks. | True |
The type of parameter that is declared in procedure heading is called ________. | FORMAL |
What is missing in the procedure header? CREATE PROCEDURE raise_sal(p_id IN NUMBER, p_sal IN NUMBER) IS BEGIN ... END; | Nothing is missing |
The parameter modes are specified in: | FORMAL PARAMETER |
A function must have a _______ clause in the header and at least one RETURN statement in the executable section. | RETURN |
Which of the statement below is valid? Assuming that get_sal function exists with parameter. | Not in the options |
We can assign a default value to parameters. | False |
The ____ parameters can be literal values, variables, or expressions that are sent to the parameter list of a called subprogram. | ACTUAL |
A ______ is a named PL/SQL block that returns exactly one value. | FUNCTION |
What is missing in the code below? create or replace function sample is num number(2); begin num := 5+5; return num; end; | Not in the options |
Which of the statement below is valid? Assuming that get_sal procedure exists with one IN parameter. | All the options |