用OP_TYPE和DOC_TYPE跟表TR_RUNNING_MONITOR中的这两个字段比较,相同时进行update,不同时进行insert
merge into 表名 a using
(select ? as 字段1,? as 字段2,..... from dual)
b on (a.字段1=b.字段1 and ....)(判断的条件)
when matched then
update set 字段1=字段1,......
when not matched then
insert (字段1,字段2,...) values(b.字段1,b.字段2,....)
例子如下:表名:TR_RUNNING_MONITOR ;字段名:LAST_TASK_ROWID,LAST_CRAWL_DATE,START_TIME,DOC_COUNT,HIT_COUNT,OP_TYPE,DOC_TYPE
merge into TR_RUNNING_MONITOR a using
(select ? as LAST_TASK_ROWID,? as LAST_CRAWL_DATE,? as START_TIME,? as DOC_COUNT,? as HIT_COUNT,? as OP_TYPE,? as DOC_TYPE,sysdate as UPDATE_TIME from dual) b on (a.OP_TYPE=b.OP_TYPE and a.DOC_TYPE=b.DOC_TYPE) when matched then
update set DOC_COUNT=DOC_COUNT,HIT_COUNT=HIT_COUNT,START_TIME=START_TIME,UPDATE_TIME=UPDATE_TIME,
LAST_CRAWL_DATE=LAST_CRAWL_DATE,LAST_TASK_ROWID=LAST_TASK_ROWID when not matched then
insert (OP_TYPE,DOC_TYPE,DOC_COUNT,HIT_COUNT,START_TIME,UPDATE_TIME,LAST_CRAWL_DATE,LAST_TASK_ROWID)
values(b.OP_TYPE,b.DOC_TYPE,b.DOC_COUNT,b.HIT_COUNT,b.START_TIME,b.UPDATE_TIME,b.LAST_CRAWL_DATE,b.LAST_TASK_ROWID)
说明:用OP_TYPE和DOC_TYPE跟表TR_RUNNING_MONITOR中的这两个字段比较,,相同时进行update,不同时进行insert
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