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Oracle 1Z0-149 exam covers a wide range of topics related to PL/SQL programming in Oracle Database 19c. The topics include PL/SQL language fundamentals, control structures, collections, error handling, subprograms, and packages. 1z1-149 exam also covers advanced topics such as dynamic SQL, triggers, and securing database objects.

Oracle Database 19c: Program with PL/SQL Sample Questions (Q49-Q54):

NEW QUESTION # 49
Which two are true about named notations in a PL/SQL subprogram? (Choose two.)

A. The subprogram invocations must be changed when the formal parameter list acquires new required parameters.
B. Specifying actual parameters in the wrong order results in the subprogram terminating with an exception.
C. Any optional parameters can be omitted in the invocation call.
D. Only trailing optional parameters can be omitted in the invocation call.
E. The actual parameters must be specified in the same order as the formal parameters are declared.

Answer: C,E

NEW QUESTION # 50
Which three are true about user-defined functions? (Choose three.)

A. They need not return any values.
B. Functions can call only other functions.
C. They can be used in CONNECT BY and START WITH clauses.
D. They can be executed as standalone commands.
E. They must be defined with at least one parameter.
F. They can be used in ORDER BY and GROUP BY clauses.
G. They can appear in the select list of a SELECT statement.

Answer: C,F,G

NEW QUESTION # 51
Which two statements are true about using the OR REPLACE clause when creating named subprograms? (Choose two.)

A. This clause can be used only for procedures and functions.
B. Object privileges to execute a replaced function are retained by those users who had the privileges.
C. Function based indexes remain usable when replacing the function on which the index depends.
D. Object privileges to execute a replaced function must be regranted to those users who had the privilege.
E. A function definition can be modified without dropping and re-creating it.

Answer: B,E

NEW QUESTION # 52
Which three are true regarding code based access control (CBAC)? (Choose three.)

A. In a multitenant environment, the DELEGATE option of CBAC cannot be used.
B. You can use CBAC to attach database roles to a PL/SQL function, procedure, or package.
C. CBAC roles can be granted to a program unit only if they are directly granted to its owner.
D. CBAC cannot be used to secure definer's rights.
E. You can use CBAC to attach database roles to a PL/SQL function or procedure only.
F. In CBAC, the ADMIN and DELEGATE options cannot both be granted to the same user.
G. CBAC roles can be granted to a program unit only if they are the predefined roles automatically defined by the standard scripts as part of database creation.

Answer: B,C,F

NEW QUESTION # 53
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. It fails compilation.
B. A severe compilation warning is generated.
C. An information compilation warning is generated.
D. A performance compilation warning is generated.
E. There are no compilation warnings or errors.

Answer: D

NEW QUESTION # 54
......

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