ViewtheExhibit.WhatwouldhappenifOracleHomeisnotempty（）

A.AddtheProductSizedatatableandtheProductSizeDescriptorcolumntotheProductdimension.SettheorderoftheProductSKUattributetotheProductSizeDescriptorcolumn. B.AddtheProductSizedatatableasadimensionandthenaddthisdimensiontothecubeasaReferenceddimension.SettheorderofthekeyattributeoftheProductSizedimensiontotheProductSizeDescriptorcolumn. C.AddtheProductSizedatatableandtheProductSizeDescriptorcolumntotheProductdimension.Createauser-definedhierarchythathasProductSKUasthetop-levelattributeandProductSizeDescriptorasthebottom-levelattribute. D.AddtheProductSizedatatableasadimensionandthenaddthisdimensiontothecubeasaReferenceddimension.Createauser-definedhierarchywithintheProductSizedimension.SettheProductSizeDescriptorattributeasthetop-levelattribute.

A．df-k B．lsps C．lslv-p D．fileplace

The following statements:CREATE TABLE t1 (col1 INT NOT NULL, PRIMARY KEY(col1)); CREATE TABLE t2 (col1 INT NOT NULL, col2 CHAR(1) NOT NULL, PRIMARY KEY (col1, col2), FOREIGN KEY (col1) REFERENCES t1 (col1) ON DELETE CASCADE ON UPDATE RESTRICT); CREATE TABLE t3 (col1 INT NOT NULL, col2 INT NOT NULL, PRIMARY KEY (col1, col2),FOREIGN KEY (col1) REFERENCES t1 (col1) ON DELETE NO ACTION ON UPDATE RESTRICT);INSERT INTO t1 VALUES (1), (2); INSERT INTO t2 VALUES (1, ‘a‘), (1, ‘b‘), (2,‘c‘); INSERT INTO t3 VALUES (1, 100), (2, 200), (2,300);How many rows will be deleted by the following DELETE statement？ DELETE FROM t1 WHERE col1= 1;（） A.4 B.3 C.1 D.0

A.Group2istheactivegroup. B.Group2isthecurrentgroup. C.DatabaseisintheMOUNTstate. D.Group2hasbeenalreadyarchived.

A．公共草原 B．高等教育 C．国防 D．公共卫生服务