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单选题
What is true about sequences?（）
A
The start value of the sequence is always 1.
B
A sequence always increments by 1.
C
The minimum value of an ascending sequence defaults to 1.
D
The maximum value of descending sequence defaults to 1.
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单选题A sequence was created with the DDL statement shown below:CREATE SEQUENCE my_seq START WITH 5 INCREMENT BY 5 CACHE 5 User1 successfully executes the following statements in Connection1: VALUES NEXT VALUE FOR my_seq INTO :con1hvar VALUES NEXT VALUE FOR my_seq INTO :con1hvar User2 successfully executes the following statement in Connection2: VALUES NEXT VALUE FOR my_seq INTO :con2hvar After User1 User2 are finished, User3 executes the following statement in Connection3: SELECT NEXT VALUE FOR my_seq FROM sysibm.sysdummy1Which value will be returned by the query?（）A
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The inner query always sorts the results of the outer queryB
The outer query always sorts the results of the inner queryC
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单选题Which of the following is a characteristic of a sequence?（）A
A sequence will never generate duplicate valuesB
The MAXVALUE of a sequence can be equal to the MINVALUEC
It is not possible to create a sequence that generates a constant since the INCREMENT value must be greater than zeroD
When a sequence cycles back to either the MAXVALUE or MINVALUE, it will always be equal to the specified value of either of these two boundaries
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