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A. In a character sort, the values are case-sensitive.
B. NULL values are not considered at all by the sort operation.
C. Only those columns that are specified in the SELECT list can be used in the ORDER BY clause.
D. Numeric values are displayed from the maximum to the minimum value if they have decimal positions.来自 “ ITPUB博客 ” ,链接:https://blog.itpub.net/17013648/viewspace-1161537/ ,如需转载,请注明出处,否则将追究法律责任。