Example—设置Locally Managed Tablespace的空间警告阀值
The following example sets the free-space-remaining thresholds in the USERS tablespace to 10 MB (warning) and 2 MB (critical), and disables the percent-full thresholds.
设置user tbs 在free 空间为10M时为-warning ，2M时为-critical，同时禁用
percent-full thresholds.
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DB VERSION: oracle 11g
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BEGIN
DBMS_SERVER_ALERT.SET_THRESHOLD(
metrics_id => DBMS_SERVER_ALERT.TABLESPACE_BYT_FREE,
warning_operator => DBMS_SERVER_ALERT.OPERATOR_LE,
warning_value => '10240',
critical_operator => DBMS_SERVER_ALERT.OPERATOR_LE,
critical_value => '2048',
observation_period => 1,
consecutive_occurrences => 1,
instance_name => NULL,
object_type =>DBMS_SERVER_ALERT.OBJECT_TYPE_TABLESPACE,
object_name => 'USERS');
DBMS_SERVER_ALERT.SET_THRESHOLD(
metrics_id => DBMS_SERVER_ALERT.TABLESPACE_PCT_FULL,
warning_operator => DBMS_SERVER_ALERT.OPERATOR_GT,
warning_value => '0',
critical_operator => DBMS_SERVER_ALERT.OPERATOR_GT,
critical_value => '0',
observation_period => 1,
consecutive_occurrences => 1,
instance_name => NULL,
object_type => DBMS_SERVER_ALERT.OBJECT_TYPE_TABLESPACE,
object_name => 'USERS');
END;
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