Firebird 默认是大小写敏感,在检索的时候。要想不敏感检索,两种方法:1、where upper(name) = upper(:flt_name)2、检索时指定字符集collation,例如:collate unicode_ci select * from M_CUSTOMER where code collate unicode_ci = 'c0001'实际存储code = C0001