避免重复插入数据sql server

insert into TN_JOBS(JAVA_ID,SERVER_IP,SERVER_PORT,JOB_CODE,JOB_NAME,JOB_START_TIME,JOB_MSG,JOB_STATUS,JOB_END_TIME) SELECT 'JOB001','','','','','','','','' where not exists (select * from TN_JOBS b wh

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