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Lotus IT Hub training institute

Which query finds duplicate records in a table?

5 hours ago | [YT] | 0

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Lotus IT Hub training institute

Q: Which query returns the second highest salary?

5 hours ago | [YT] | 0

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Lotus IT Hub training institute

Given Two Tables:
Table1 Table2
1 1
1 1
0 0
0 -
- -

Question:

What will be the output of this query?

SELECT *
FROM Table1 T1
INNER JOIN Table2 T2
ON T1.ID = T2.ID;

5 hours ago | [YT] | 0

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Lotus IT Hub training institute

Which is generally faster for large datasets?

5 hours ago | [YT] | 0

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Lotus IT Hub training institute

Which query returns employees without a department?

5 hours ago | [YT] | 0

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Lotus IT Hub training institute

What is the difference between WHERE and HAVING?

5 hours ago | [YT] | 0

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Lotus IT Hub training institute

How many clustered indexes can a table have?

5 hours ago | [YT] | 0

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Lotus IT Hub training institute

What is the result of the following SQL query?
SELECT COUNT(NULL);

5 hours ago | [YT] | 0

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Lotus IT Hub training institute

Table:
| Employee | Salary |
| -------- | ------ |
| A | 5000 |
| B | 7000 |
| C | 6000 |

Query:

SELECT Employee,
RANK() OVER(ORDER BY Salary DESC) RankNo
FROM Employee;

13 hours ago | [YT] | 1

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Lotus IT Hub training institute

Which of the following best describes DENSE_RANK() in SQL?

1 day ago | [YT] | 1

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