1z0-148

Review 75 1Z0-148 practice questions with answer explanations and community insights.

Question 1

The STUDENTS table exists in your schema. Examine the DECLARE section of a PL/SQL block: Which two blocks are valid?

  1. BEGIN OPEN cursor3 FOR SELECT * FROM students; cursor1 :=cursor3; END;
  2. BEGIN OPEN stcur; cursor1 :=stcur; END;
  3. BEGIN OPEN cursor1 FOR SELECT * FROM students; stcur :=cursor1; END;
  4. BEGIN OPEN stcur; cursor3 :=stcur; END;
  5. BEGIN OPEN cursor1 FOR SELECT * FROM students; cursor2 :=cursor1;

Question 2

Examine the code: Which two subprograms will be created successfully?

  1. CREATE FUNCTION p4 (y pkg.tab_typ) RETURN pkg.tab_typ IS BEGIN EXECUTE IMMEDIATE SELECT pdt_id, pdt_name FROM TABLE (:b) BULT COLLECT INTO pkg.x USING y; RETURN pkg.x; END p4;
  2. CREATE PROCEDURE p1 (y IN OUT pkg.tab_typ) IS BEGIN EXECUTE IMMEDIATE SELECT f (:b) FROM DUAL INTO y USING pkg.x; END p1;
  3. CREATE PROCEDURE p2 (v IN OUT VARCHAR2) IS BEGIN EXECUTE IMMEDIATE SELECT f (:b) FROM DUAL INTO v USING pkg.x; END p2;
  4. CREATE FUNCTION p3 RETURN pkg. tab_typ IS BEGIN EXECUTE IMMEDIATE SELECT f (:b) FROM DUAL INTO pkg.x; END p3;
  5. CREATE PROCEDURE p5 (y pkg. rec_typ) IS BEGIN EXECUTE IMMEDIATE SELECT pdt_name FROM TABLE (:b) BULK COLLECT INTO y USING pkg.x;

Question 3

Examine the section of code taken from a PL/SQL program: PLSQL_OPTIMIZE_LEVEL PARAMETER is set to 3. Which two statements are true?

  1. Calls to TESTPROC will always be inlined as it is compiled with PLSQL_OPTIMIZE_LEVEL=3.
  2. Calls to TESTPROC are never inlined in both lines commented as Call1 and Call 2.
  3. Calls to TESTPROC are not inlined in the line commented as Call 1.
  4. Calls to TESTPROC are inlined in both lines commented as Call 1 and Call 2.
  5. Calls to TESTPROC might be inlined in the line commented as Call 2.

Question 4

Which statement is true about the DBMS_PARALLEL_EXECUTE package?

  1. DBMS_PARALLEL_EXECUTE is a SYS-owned package and can be accessed only by a user with DBA privileges.
  2. To execute chunks in parallel, users must have CREATE JOB system privilege.
  3. No specific system privileges are required to create or run parallel execution tasks.
  4. Only DBAs can create or run parallel execution tasks.
  5. Users with CREATE TASK privilege can create or run parallel execution tasks.

Question 5

Which two statements are true regarding edition-based redefinition (EBR)?

  1. There is no default edition defined in the database.
  2. EBR does not let you upgrade the database components of an application while in use.
  3. You never use EBR to copy the database objects and redefine the copied objects in isolation.
  4. Editions are non-schema objects.
  5. When you change an editioned object, all of its dependents remain valid.
  6. Tables are not editionable objects.