A. The main query executes with the first value returned by the subquery.
B. The main query executes with the last value returned by the subquery.
C. The main query executes with all the values returned by the subquery.
D. The main query fails because the multiple-row subquery cannot be used with the comparison operator.
E. You cannot define a multiple-row subquery in the WHERE clause of a SQL query.
第1题:
健康计划的总体目标中的三个"W"指
A、who,what,when
B、what,when,why
C、who,what,which
D、what,when,where
E、when,where,which
第2题:
第3题:
计划的主要内容包括______计划必须清楚的确定和描述这些内容。
A.What,Why,Who,Where,When,How many,How much
B.What,Why,We,Where,When,How to,How much
C.What,Why,We,Where,When,How,How much
D.What,Why,Who,Where,When,How,How much
第4题:
健康计划的总体目标中的三个“W”指
A:what,when,where
B:who,what,when
C:when,where,which
D:who,what,which
E:what,when,why
第5题:
query()的作用是执行SQL语句,并返回结果集或不返回结果集。
第6题:
计划的主要内容包括______,计划必须清楚地确定和描述这些内容。
A.What, Why, Who, Where, When, How many, How much
B.What, Why, We, Where, When, How to, How much
C.What, Why, We, Where, When, How, How much
D.What, Why, Who, Where, When, How, How much