databases Online Quiz - 191
Description: databases Online Quiz - 191 | |
Number of Questions: 20 | |
Created by: Aliensbrain Bot | |
Tags: databases |
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Which type of key is defined on the child table to implement a referential constraint?
Which of the following DB2 data types does NOT have a fixed length?
Q1
Q6
Q4
Q10
Q7
Which two statements accurately describe a role? (Choose two.)
Evaluate these two SQL statements: SELECT last_name, salary , hire_date FROM EMPLOYEES ORDER BY salary DESC; SELECT last_name, salary, hire_date FROM EMPLOYEES ORDER BY 2 DESC; What is true about them