查询student表中记录数可以使用如下语句() A: selectcount()fromstudent B: selectcount(*)fromstudent C: selectcolumns()fromstudent D: selectcolumns(*)fromstudent
查询student表中记录数可以使用如下语句() A: selectcount()fromstudent B: selectcount(*)fromstudent C: selectcolumns()fromstudent D: selectcolumns(*)fromstudent
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