Q125 Which two statements are true about the ORD_ITEMS table and the ORD_SEQ sequence?
Q125 Evaluate these commands which execute successfully:
Which two statements are true about the ORD_ITEMS table and the ORD_SEQ sequence? (Choose two.)
- (A). If sequence ORD_SEQ is dropped then the default value for column ORD_NO will be NULL for rows inserted into ORD_ITEMS
- (B). Any user inserting rows into table ORD_ITEMS must have been granted access to sequence ORD_SEQ
- (C). Column ORD_NO gets the next number from sequence ORD_SEQ whenever a row is inserted into ORD_ITEMS and no explicit value is given for ORD_NO
- (D). Sequence ORD_SEQ cycles back to 1 after every 5000 numbers and can cycle 20 times
- (E). Sequence ORD_SEQ is guaranteed not to generate duplicate numbers
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