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1Z0-148Oracle Database: Advanced PL/SQL

243 Questions and Answers Experienced specialists selected 243 questions for this exam. All answers are verified to ensure correctness.

Last Updated Mar 12, 2024 Ace your exams with our consistently updated 1Z0-148 exam dumps.

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Same Questions from the Latest Real Exam

1Z0-148 Online Practice Questions and Answers

Questions 1

In which two situations is the body of a result-cached function executed? (Choose two.)

A. if the memory allocated for the result cache is increased

B. if a session on this database instance invokes the function with the same parameter values

C. if the first time a session on this database instance invokes the function with a parameter value

D. if a session executes a data manipulation language (DML) statement on a table or view that was specified in the RELIES_ON clause of a result-cached function

Show Answer
Questions 2

Examine the following command to create the table EMPLOYEES_TEMP and the PL/SQL block.

CREATE TABLE employees_temp (empid NUMBER(6) NOT NULL,

deptid NUMBER(6) CONSTRAINT c_emp_deptid CHECK (deptid BETWEEN 100 AND 200),

salary Number(8),

deptname VARCHAR2(30) DEFAULT 'Sales')

/

DECLARE

SUBTYPE v_emprec_subtype IS employees_temp%ROWTYPE;

v_emprec v_emprec_subtype;

BEGIN

v_emprec.empid := NULL; v_emprec.salary := 10000.002;

v_emprec.deptid := 50;

DBMS_OUTPUT.PUT_LINE('v_emprec.deptname: ' || v_emprec.deptname);

END;

/

Which statements are true about the above PL/SQL block? (Choose two.)

A. V_EMPREC.DEPTNAME would display a null value because the default value is not inherited.

B. Assigning null to V_EMPREC.EMPID would generate an error because the null constraint is inherited.

C. Assigning the value 1000.002 to V_EMPREC.SALARY would generate an error because of the decimal.

D. Assigning the value 50 to V_EMPREC.DEPTID would work because the check constraint is not inherited.

Show Answer
Questions 3

Which guidelines should be considered when designing and using cursors in a PL/SQL block? ? (Choose all that apply.)

A. When fetching from a cursor, fetch into a record.

B. Use parameters with cursors so that the result set for the cursor is not tied to a specific variable in a program.

C. Use the %NOTFOUND attribute in combination with the SELECT INTO statement to check for non existent values.

D. Whenever possible, explicitly declare the cursor and use the OPEN, FETCH and CLOSE statements to manipulate the cursor instead of using cursor FOR loop.

E. When using data manipulation language statements, (DML) reference a SQL cursor attribute immediately after the DML statement executes in the same block.

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