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
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相关考题
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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
