單項(xiàng)選擇題

Which of the following strings can be inserted into an XML column using XMLPARSE?（）

A."<employee/>"
B."<?xml version='1.0' encoding='UTF-8' ?>"
C."<!DOCTYPE hello SYSTEM 'hello_world.dtd'>"
D."<x xmlns:ibmcert='http://www.ibm.com/certify'>"

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單項(xiàng)選擇題

What is the maximum size that can be specified when creating an XML column in a DB2 table?（）

A.No size is specified
B.The buffer pool size
C.The page size for the table space
D.The extent size for the table space

單項(xiàng)選擇題

If a unique constraint is defined on column COL1 of table TAB1, what are the characteristics of COL1?（）

A.COL1 will accept NULL values and can be referenced in another table's foreign key specification.
B.COL1 will not accept NULL values and cannot be referenced in another tables foreign key specification.
C.COL1 will not accept NULL values and can be referenced in another tables foreign key specification.
D.COL1 will accept NULL values and cannot be referenced in another tables foreign key specification.