Plsql
- 1. Which line number has error in the following program? CREATE OR REPLACE PROCEDURE p2 is Begin Insert into enp(empno,ename,sal) values(11,'John',1111); Drop table dept; Delete from salgrade; Rollback; End; Select an answer A. 2 B. 5 *C. 7 D. 4 The mechanisms that prevent destructive interaction between transactions accessing the same resource is called: Select an answer *A. Lock B. Transaction C. Interaction D. None of the options are correct The ________ statement is a data definition language statement and generates no rollback information. Select an answer A. ROLLBACK B. TRANSACT *C. TRUNCATE D. None of the options are correct Which of the statements must be used inside a PL/SQL block to remove data from a table? Select an answer A. DROP B. MERGE C. DROP *D. DELETE Which view displays indirect dependencies, indenting each dependency? Select an answer A. DEPTREE *B. IDEPTREE C. INDENT_TREE D. I_DEPT_TREE What is the scope of a local declaration? Select an answer
- 2. A. Subprogram B. Session *C. Block D. Schema A database transaction ends with one of the following commands. Select an answer A. Exit command B. Stop command *C. Commit command D. None of the options are correct You need to create a trigger on the EMP table that monitors every row that is changed and places this information into the AUDIT_TABLE. Which type of trigger do you create? Select an answer A. Statement-level trigger on the EMP table B. For each row trigger on the EMP table C. Statement-level trigger on the AUDIT_TABLE table D. For each row statement level trigger on the EMP table *E. For each row trigger on the AUDIT_TABLE table You can control the logic of transactions by using the following statement/s. (Please select ALL that apply) Select an answer *A. COMMIT *B. SAVEPOINT *C. ROLLBACK D. None of the options are correct Which of the following is NOT VALID declaration? Select an answer A. Bool boolean; *B. NUM1, NUM2 number; C. deptname dept.dname%type; D. date1 date := sysdate; Find the ODD one out of the following. Select an answer A. OPEN B. CLOSE *C. INSERT D. FETCH Find the ODD one out of the following. Select an answer
- 3. A. OPEN B. CLOSE C. INSERT D. FETCH Which three describes a stored procedure? (Please select ALL that apply) Select an answer A. A stored procedure is typically written in SQL *B. By default, a stored procedure executes with the privileges of its owner C. A stored procedure has three parts: the specification, the body, and the exception handler part *D. A stored procedure is stored in the database and can be shared by a number of programs *E. A stored procedure offers some advantages over a standalone SQL statement, such as programmable functionality and compiled code You need to create a DML trigger. Which five pieces need to be identified? (Please select ALL that apply) Select an answer *A. table *B. DML event *C. trigger body D. package body *E. trigger name *F. trigger timing Examine this code: CREATE OR REPLACE PACKAGE prod_pack IS g_tax_rate NUMBER := .08; END prod_pack; Which statement about this code is true? Select an answer A. This package specification can exist without a body B. This package body can exist without a specification C. This package body cannot exist without a specification *D. This package specification cannot exist without a body How can a PL/SQL block be executed? Select an answer A. By using a semi colon at the end B. By using a colon at the end C. By using a slash (/) at the end *D. By pressing "Enter"
- 4. Question: 16 of 30 lt043993enQ0128 Which part of a database trigger determines the number of times the trigger body executes? Select an answer *A. TRIGGER TYPE B. TRIGGER BODY C. TRIGGER EVENT D. TRIGGER TIMING 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? (Please select ALL that apply) Select an answer *A. EXECUTE UPD_BAT_STAT; *B. EXECUTE UPD_BAT_STAT(V_AB=>10, V_ID=>31); C. EXECUTE UPD_BAT_STAT(31, .FOUR., .TWO.); D. UPD_BAT_STAT(V_AB=>10, V_ID=>31); What is a condition predicate in a DML trigger? Select an answer A. A conditional predicate allows you to specify a WHEN-LOGGING-ON condition in the trigger body B. A conditional predicate means that you use the NEW and OLD qualifiers in the trigger body as a condition *C. A conditional predicate allows you to combine several DBM triggering events into one in the trigger body D. A conditional predicate allows you to specify a SHUTDOWN or STARTUP condition in the trigger body The ADD_PLAYER, UPD_PLAYER_STAT, and UPD_PITCHER_STAT procedures are grouped together in a package. A variable must be shared among only these procedures. Where should you declare this variable? Select an answer *A. In the package body B. In the data base triggers C. In the package specification D. In the procedures, declare section using the exact name in each
- 5. What are the conditions when a record variable is assigned to +D135another record variable, the target variable is declared with a RECORD type, and the source variable is declared with %ROWTYPE? Select an answer A. An error is thrown *B. The assignment is successful only when their fields match in number and order, and corresponding fields have the same data type C. The assignment is successful as long as the fields in both source and target have the same datatype, even if they do not match in number and order D. The assignment is successful only when their fields match in number, and corresponding fields have the same data type. The order of the fields does not matter How can a user defined exception be raised? Select an answer *A. Using RAISE statement only B. Using RAISE statement or RAISE_APPLICATION_ERROR function C. Using INVOKE statement or RAISE statement D. Using RAISE statement or RAISE_APPLICATIOn_ERROR procedure Which of the following is not correct about an exception? Select an answer *A. Raised explicitly /automatically in response to an ORACLE_ERROR B. An exception will be raised when an error occurs in that block C. Process terminates after completion of error sequence D. A procedure of sequence of statements may be processed You have created a stored procedure DELETE_TEMP_TABLE that uses dynamic SQL to remove a table in your schema. You have granted the EXECUTE privilege to user A on this procedure. When user A executes the DELETE_TEMP_TABLE procedure, under whose privileges are the operations performed by default? Select an answer A. SYS privileges *B. Your privileges C. Public privileges D. User A.s privileges E. User A cannot execute your procedure that has dynamic SQL 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; /
- 6. Which three are valid calls to the add_dep procedure? (Please select ALL that apply) Select an answer *A. add_dept; *B. add_dept( .Accounting .); C. add_dept(, .New York .); *D. add_dept(p_location=> .New York .); Examine the trigger: CREATE OR REPLACE TRIGGER Emp_count AFTER DELETE ON Emp_tab FOR EACH ROW DELCARE n INTEGER; BEGIN SELECT COUNT(*) INTO n FROM Emp_tab; DMBS_OUTPUT.PUT_LINE ( . There are now . || a || . employees, .); END; This trigger results in an error after this SQL statement is entered: DELETE FROM Emp_tab WHERE Empno = 7499; How do you correct the error? Select an answer A. Change the trigger type to a BEFORE DELETE B. Take out the COUNT function because it is not allowed in a trigger C. Remove the DBMS_OUTPUT statement because it is not allowed in a trigger *D. Change the trigger to a statement-level trigger by removing FOR EACH ROW _____________ pragma is used to attach a user defined error name with predefined error number. Select an answer A. AUTONOMOUS TRANSACTON *B. EXCEPTION_INIT C. ERROR_INIT D. RESTRICT_REFERENCES You are about to change the arguments of the CALC_TEAM_AVG function. Which dictionary view can you query to determine the names of the procedures and functions that invoke the CALC_TEAM_AVG function? Select an answer *A. USER_DEPENDENCIES B. USER_REFERENCES C. USER_SOURCE D. USER_PROC_DEPENDS Given a function CALCTAX: CREATE OR REPLACE FUNCTION calc tax (sal NUMBER) RETURN
- 7. 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? Select an answer A. You need to execute the command CALCTAX(1000); . B. You need to execute the command EXECUTE FUNCTION calc tax; *C. You need to create a SQL *Plus environment variable X and issue the command :X := CALCTAX(1000); D. You need to create a SQL *Plus environment variable X and issue the command EXECUTE :X := CALCTAX; E. You need to create a SQL *Plus environment variable X and issue the command EXECUTE :X := CALCTAX(1000); Which one of these operators does not have the same precedence as the others? Select an answer A. BETWEEN *B. AND C. LIKE D. IS NULL Which situation requires a before update statement level trigger on the table? Select an answer A. When you need to populate values of each updated row into another table B. When a trigger must fire for each row affected by the triggering statement *C. When you need to make sure that user making modifications to the table has necessary privileges D. When you need to store the information of the use who successfully modified tables and in audit table