Oracle RACѧϰ±Ê¼Ç (¶þ)
Oracle RAC Workload Management:
service usage preferred instances available instances prority response time warning/critical
ERP client RDB1 RDB2 high 0.5/0.75
SELF_
SERVICE client RDB1,RDB2 - standard 1.1/1.5
HOT_
BATCH Job RDB1 RDB2 high 1.0/1.5
STD_
BATCH Job RDB1,RDB2 - &nbs
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DELETE from mytable t1 WHERE ROWID > (SELECT MIN (ROWID) from mytable t2 WHERE t1. key = t2.key);
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SELECT TO_CHAR(SYSDATE, 'yyyy-MM-dd') from DUAL;
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SELECT TO_CHAR(ADD_MONTHS(SYSDATE,
-1), 'yyyy-MM-dd') from DUAL;
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