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Passing the Oracle 1z1-149 exam can open up career opportunities in the database programming field, enhance your resume, and validate your expertise in programming with PL/SQL using Oracle Database 19c. With proper preparation and practice, you can gain the knowledge and skills required to pass this challenging exam and take your career to the next level.
Oracle 1Z0-149 exam is intended for experienced PL/SQL developers who possess a strong understanding of the Oracle Database 19c environment. 1z1-149 exam is ideal for individuals who want to demonstrate their expertise in creating efficient and effective PL/SQL applications that can be integrated with Oracle Database 19c. 1z1-149 exam is also beneficial for professionals who want to enhance their career prospects by obtaining an advanced-level certification.
NEW QUESTION # 30
Examine these statements and output:
The procedure is created successfully.
User ora2 has password ora2 in pdb1.
Which script will execute successfully?
- A.
- B.
- C.
- D.
Answer: C
NEW QUESTION # 31
Which two blocks of code display a numerical zero? (Choose two.)
- A.
- B.
- C.
- D.
Answer: A,C
NEW QUESTION # 32
Sequence S and table PRODUCTS exist in your schema.
Examine the table description:
Now, examine this block of code:
Which two lines each result in a compilation error? (Choose two.)
- A. line 3
- B. line 6
- C. line 1
- D. line 7
- E. line 8
- F. line 2
Answer: B,C
NEW QUESTION # 33
Examine this code:
ALTER SESSION SET plsql_warnings='ENABLE:ALL';
/
You compile this function:
What happens when the function is created with PLSQL_WARNINGS set to 'ENABLE: ALL'?
- A. A performance compilation warning is generated.
- B. It fails compilation.
- C. There are no compilation warnings or errors.
- D. A severe compilation warning is generated.
- E. An information compilation warning is generated.
Answer: A
NEW QUESTION # 34
Which two are true about implicit data type conversion? (Choose two.)
- A. Implicit data type conversion can negatively impact performance.
- B. RAW data types are always implicitly converted to a CLOB when used in a query.
- C. Collections can be implicitly converted to records.
- D. ROWIDS are always implicitly converted to a number when used in a query.
- E. Comparison between character value and a number value always implicitly converts the character value to the number data type.
Answer: A,E
NEW QUESTION # 35
Examine this statement which executes successfully:
SQL> SET SERVEROUTPUT ON;
Now, examine this code which is executed:
What is true about the result?
- A. It returns an error in line 9.
- B. It returns an error in line 4.
- C. It returns an error in line 2.
- D. It executes and displays output.
Answer: B
NEW QUESTION # 36
Examine these statements which execute successfully:
Which anonymous block executes successfully?
- A.
- B.
- C.
- D.
Answer: D
NEW QUESTION # 37
Examine this DECLARE section:
Which two lines are valid? (Choose two.)
- A. line 3
- B. line 2
- C. line 6
- D. line 7
- E. line 4
- F. line 5
Answer: B,F
NEW QUESTION # 38
Examine these statements issued by user SH which execute successfully:
DBMS_OUTPUT.PUT_LINE(p_price(i)); END LOOP; END; END products_pkg; /
Now, examine this anonymous block executed by SH:
Which is true about the anonymous block?
- A. It will fail at lines 6 and 7.
- B. It will execute successfully only if PriceList is removed from the DECLARE section and defined as a standalone collection type.
- C. It will fail only at line 7.
- D. It will execute successfully only if PriceList is defined as an associative array in the package and anonymous block.
Answer: C
NEW QUESTION # 39
Which three are true about PL/SQL subprograms? (Choose three.)
- A. Reuse of parsed PL/SQL code from the shared SQL area reduces parsing overhead.
- B. A subprogram's session state is retained even if any of the session's instantiated subprograms are invalidated and revalidated.
- C. Host variables can be referenced inside any PL/SQL subprogram.
- D. Subprograms are cached by default and shared among users, thereby reducing memory requirements.
- E. A PL/SQL procedure can invoke an external code block written in a different programming language.
- F. Results of a subprogram can be cached in the SGA such that sessions connected to the same instance can reuse these results when available.
- G. Users granted execute privilege on a procedure compiled with definer's rights require grants to access objects belonging to the definer that are referenced in the procedure.
Answer: A,D,E
NEW QUESTION # 40
Which three are true about DDL triggers? (Choose three.)
- A. They can be fired either before or after a DDL statement executes.
- B. They must be created in an enabled state.
- C. They can be fired when a table is truncated.
- D. They fire only when a DDL statement is executed by the owner of the trigger.
- E. They can be fired when a privilege is granted to a user.
- F. They must be created in a disabled state.
- G. They cannot include the WHEN clause.
Answer: A,C,D
NEW QUESTION # 41
The SH schema contains the PRODUCTS table with column PDT_NAME defined as VARCHAR2(10).
Which two blocks of code execute successfully when invoked by user SH? (Choose two.)
- A.
- B.
- C.
- D.
- E.
Answer: C,E
NEW QUESTION # 42
Which statement is true about user-defined records?
- A. The number of fields must match the number of columns in a table.
- B. They can be returned from a function.
- C. Field names must match selected column names.
- D. Field types must match column types.
Answer: A
NEW QUESTION # 43
Which two statements are true about the RETURNING clause when used with DML? (Choose two.)
- A. The RETURNING INTO clause returns column values for rows affected by DML statements.
- B. When using the RETURNING INTO clause, the data returned can be only single column or expression.
- C. The RETURNING clause can be used for remote or parallel deletes.
- D. The RETURNING INTO clause and bulk binds may not be used together.
- E. The RETURNING INTO clause can be used with DML that affects multiple rows, if the BULK COLLECT clause is used.
Answer: C,E
NEW QUESTION # 44
Which two are true about the PLSQL_CODE_TYPE parameter? (Choose two.)
- A. The default value is NATIVE.
- B. If set to NATIVE, programs are stored in a PL/SQL bytecode format.
- C. If set to NATIVE, programs are stored in platform dependent machine code.
- D. Changing the parameter setting automatically changes the setting for existing PL/SQL library units.
- E. It can use the REUSE SETTINGS clause to recompile a program unit without changing to the current session settings.
Answer: C,E
NEW QUESTION # 45
Which three statements are true about Implicit Cursor and Explicit Cursor? (Choose three.)
- A. %Isopen, %Rowcount, %Notfound, and %Found are the attributes of Explicit Cursor.
- B. %Isopen, %Type, %Notfound, and %Found are the attributes of Explicit Cursor.
- C. %Isopen is always false in Explicit Cursor.
- D. %Isopen is always false in Implicit Cursor.
- E. Implicit cursor returns only one record.
- F. %Isopen, %Rowtype, %Notfound, and %Found are the attributes of Explicit Cursor.
- G. Explicit cursor can return more than one record.
Answer: D,F,G
NEW QUESTION # 46
Which two are true about packages? (Choose two.)
- A. Modifications to a packaged procedure's body automatically cause recompilation of subprograms that invoke the procedure.
- B. A package definition must have a specification and body.
- C. Standalone subprograms that reference a package can be compiled only after both the package specification and body are compiled.
- D. Variables and cursors defined in a package specification are visible to all subprograms in the same schema that has the package.
- E. Package specifications can be compiled without their bodies.
Answer: D,E
NEW QUESTION # 47
In one of your databases, table HR.EMPLOYEES includes the columns FIRST_NAME and EMPLOYEE_ID.
A row exists with EMPLOYEE_ID 201.
Examine these packages created by user HR:
EXECUTE privilege is granted to user SH, on the HR.API and HR.HELPER packages.
Which two will execute successfully? (Choose two.)
- A. Call HR.HELPER.H1 from the HR schema.
- B. Call HR.API.P1 from the HR schema.
- C. Call HR.HELPER.H1 from the SH schema.
- D. Call HR.API.P1 from the SH schema.
- E. Create and call a package procedure API.H1 in the SH schema, which calls HR.HELPER.H1.
Answer: C,D
NEW QUESTION # 48
Which two are valid MODIFIER values for the PLSQL_WARNINGS parameter? (Choose two.)
- A. ENABLE
- B. ERROR
- C. DISABLE
- D. SEVERE
- E. ALL
Answer: D,E
NEW QUESTION # 49
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