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【单选题】
假定student表及对应字段都存在,阅读下面SQL代码: DECLARE s_grade FLOAT; DECLARE s_gender CHAR(2); SELECT grade, gender INTO s_grade, s_gender FROM student WHERE name = 'rose'; 关于上述代码的描述中,正确的是A.
存在语法错误，声明变量没有给定初始值
B.
存在语法错误，因为给变量赋值应该使用SET
C.
声明变量并通过SELECT … INTO …方式给变量赋值
D.
以上说法都不对
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【单选题】下列控制活动中,不属于检查性控制的是()
A.
针对销售业务,每月末向客户寄送对账单
B.
销售发票启用前,检查其是否连续编号、是否重号或者遗漏某一号码
C.
管理层定期执行存货盘点,以确定永续盘存制的可靠性
D.
会计主管每月末将银行账户余额与银行对账单进行核对,并编制银行存款余额调节表
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