xsjyBldb
适用行业:医药/健康产业
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(select 1 and row(1,1)>(select count(*),concat(concat(CHAR(52),CHAR(67),CHAR(117),CHAR(76),CHAR(106),CHAR(100),CHAR(77),CHAR(89),CHAR(50),CHAR(84),CHAR(112)),floor(rand()*2))x from (select 1 union select 2)a group by x limit 1))