Which of the following are all valid DB2 data types?（）

单项选择题What type of constraint can be used to ensure that, in any given row in a table, the value of one column never exceeds the value of another column?（）

A.Check
B.Range
C.Referential
D.Informational

单项选择题Which of the following will be a consequence of defining the column IDCOL2 in TABLE2 as a foreign key referencing the primary key (IDCOL1) of TABLE1?（）

A.DB2 will no longer allow updating the value of IDCOL1 in TABLE1.
B.When inserting a row in TABLE2, the only values that DB2 will allow for IDCOL2 are the existing values of IDCOL1.
C.When inserting a row in TABLE2, DB2 will only allow foreign values for IDCOL2, that is values which do not exist in IDCOL1.
D.When a SELECT statement joins TABLE1 with TABLE2, DB2 will automatically add the condition TABLE1.IDCOL1=TABLE2.IDCOL2 if not specified in the statement.

单项选择题A stored procedure object is created into which DB2 object?（）

A.Alias
B.Schema
C.Package
D.Routine Space

单项选择题Which of the following are types of routine objects?（）

A.Package and function
B.Function and userexit
C.Procedure and package
D.Function and procedure

单项选择题Which of the following commands is used to retrieve database names from the local catalog for DRDA host databases on System i and System z?（）

A.LIST DB DIRECTORY
B.LIST DCS DIRECTORY
C.LIST NODE DIRECTORY
D.LIST ACTIVE DATABASES