A.GREATEST(10,1,98) B.LEAST(10,1,98) C.MAX(10,1,98) D.以上答案都不正確
A.name LIKE’%[a-zA-Z]%’ B.name REGEXP’[a-zA-Z]{6,20}’ C.name LIKE’[a-zA-Z]{6,20}’ D.以上答案都不正確
A.1<=>TRUE B.1=NULL C.1<=>’TRUE’ D.0<>’FALSE’