摘要:
1、wmsys.wm_concat 行转列函数 select wmsys.wm_concat(destnumber) from mms_send_his_record group by sendnumber; 2、to_char(createtime,'yyyy-mm-dd') 日期转字符串 sel 阅读全文
摘要:
1、activemq的重连机制maxReconnectAttempts-1 | 0From version 5.6 onwards: -1 is default and means retry forever, 0 means don't retry (only try connection onc... 阅读全文