问题:
Examine the list of variables and their data types:
AME DATA Type
TS, TS1 TIMESTAMP
TSZ TIMESTAMP WITH TIME ZONE
TLZ TIMESTAMP WITH LOCAL TIME ZONE
IYM INTERVAL YEAR TO MONTH
IDS, IDSI INTERVAL YEAR To SECOND
Which three expressions using the new data and time data types are valid?()
A . IDS* 2
B . TS + IYM
C . TS –TSI
D . IDS – TS
E . IDS + IYM
Examine the list of variables and their data types:
AME DATA Type
TS, TS1 TIMESTAMP
TSZ TIMESTAMP WITH TIME ZONE
TLZ TIMESTAMP WITH LOCAL TIME ZONE
IYM INTERVAL YEAR TO MONTH
IDS, IDSI INTERVAL YEAR To SECOND
Which three expressions using the new data and time data types are valid?()
● 参考解析
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