单项选择题
Which product must be installed on z/OS to allow a COBOL program running on that machine to access data on a remote DB2 for z/OS server?（）
A.DB2 for z/OS B.DB2 Run-Time Client for z/OS C.DB2 Connect Enterprise Edition for z/OS D.z/OS Application Connectivity to DB2 for z/OS and OS/390
单项选择题 A trigger can be created on which of the following objects?（）
单项选择题 Which of the following supports the XML data type?（）
单项选择题 Which of the following can be used to ensure that once a row has been inserted in table TABLEX, the column MAINID in that row cannot be updated?（）
