Observe the following PL/SQL block:
BEGIN
dbms_spm.configure('SPACE_BUDGET_PERCENT', 30);
END;
Which statement is correct regarding the above PL/SQL block?
A. It automatically purges the SQL management objects when SMB occupies more than 30% of the SYSAUX tablespace.
B. It reserves 30% of the space in the SYSAUX tablespace for SQL Management Base (SMB).
C. It reserves 30% of the space in the SYSTEM tablespace for SMB.
D. It generates a weekly warning in the alert log file when SMB occupies more than 30% of the SYSAUX tablespace.
Answer: D
Explanation:

spm:sql plan management.

CONFIGURE Procedure

This procedure sets configuration options for SQL management base, in parameter/value format. This function can be called numerous times, each time setting a different configuration option.

Syntax

DBMS_SPM.CONFIGURE (

   parameter_name    IN VARCHAR2,

   parameter_value   IN NUMBER);

Parameters

Table 136-5 CONFIGURE Procedure Parameters

Table 136-6 Names & Values for CONFIGURE Procedure Parameters

Usage Notes

• The default space budget for SQL management base is no more than ten percent of the size of SYSAUX tablespace. The space budget can be set to a maximum of 50%. The default unused plan retention period is one year and one week, which means a plan will be automatically purged if it has not been used for more than a year. The retention period can be set to a maximum of 523 weeks (i.e. a little over 10 years).