某商厦建筑面积3780m2,钢筋混凝土框架结构,地上6层,地下2层,由甲市建筑设计院设计,乙建筑工程公
B.Aggregate-oriented databases make inter-aggregate relationships more difficult to handle than intra-aggregate relationship
C.Aggregate-oriented databases are better when interactions use data organized in many difficult formations
D.Aggregate-oriented databases often compute materialized views to provide data organized differently from their primary aggregate
A.hoped; hadn’t managed
B.hoped; didn’t manage
C.hope; don’t manage
D.had hoped; didn’t manage
A.hoped,hadn’t managed
B.has hoped,didn’t manage
C.hope,don’t manage
D.had hoped,didn’t manage
A.realize
B.repeat
C.know
D.rec ognize
A.the moment
B.suddenly
C.by the moment
D.quickly
B.External connection is divided into left connection, right connection and self-connection.
C.The horizontal part of a database table is called a row, the vertical part is called a column, the content of each row is called a record,and the column name of each column is called a fiel
D.Before operating a data table,you should specify in which database the operation is performed using the "USE database name", otherwise the "No database selected" error will be thrown.
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