Subquery: Any SQL query can be written in the sub query approach. The SQL subquery returns one or more column as the result. Most SQL systems return a pair wise joining of one and only one column in an inner query with one column of an outer query. The data displayed form the table referenced in outer query only. It is a “SELECT” statement that is nested within another “SELECT” statement. Characteristics of subquery: Some of the characteristics of subquery are as follows: It is a query written inside another query. In the query statement, the first query is called as outer query and the query inside the statement is called as inner query. A subquery is usually written inside parentheses. In a query, a subquery is always gets executed first. The output generated from the subquery is used as an input for the outer query. Query inside a query is called as nested query.

Question

5. Here is a tree corresponding to T(64) for an unknown recurrence relation: 32 + lg 64 8+ lg 16 2+ lg 4 2+lg4 2+lg4 8+ lg 16 2+lg4 7 7 7 7 7 7 7 7 Fill in the details for the corresponding recurrence relation: T(n) = T(n/4)+ T(1)= Put scratch work below. Scratch work is not graded but may be used for regrade partial credit.

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Question

Chapter 5, Problem 4RQ

Program Plan Intro

Subquery:

Any SQL query can be written in the sub query approach.

The SQL subquery returns one or more column as the result.

Most SQL systems return a pair wise joining of one and only one column in an inner query with one column of an outer query.

The data displayed form the table referenced in outer query only.

It is a “SELECT” statement that is nested within another “SELECT” statement.

Characteristics of subquery:

Some of the characteristics of subquery are as follows:

It is a query written inside another query.

In the query statement, the first query is called as outer query and the query inside the statement is called as inner query.

A subquery is usually written inside parentheses.

In a query, a subquery is always gets executed first.

The output generated from the subquery is used as an input for the outer query.

Query inside a query is called as nested query.

Program Plan Intro

Subquery:

Any SQL query can be written in the sub query approach.

The SQL subquery returns one or more column as the result.

Most SQL systems return a pair wise joining of one and only one column in an inner query with one column of an outer query.

The data displayed form the table referenced in outer query only.

It is a “SELECT” statement that is nested within another “SELECT” statement.

Characteristics of subquery:

Some of the characteristics of subquery are as follows:

It is a query written inside another query.

In the query statement, the first query is called as outer query and the query inside the statement is called as inner query.

A subquery is usually written inside parentheses.

In a query, a subquery is always gets executed first.

The output generated from the subquery is used as an input for the outer query.

Query inside a query is called as nested query.

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5. Here is a tree corresponding to T(64) for an unknown recurrence relation: 32 + lg 64 8+ lg 16 2+ lg 4 2+lg4 2+lg4 8+ lg 16 2+lg4 7 7 7 7 7 7 7 7 Fill in the details for the corresponding recurrence relation: T(n) = T(n/4)+ T(1)= Put scratch work below. Scratch work is not graded but may be used for regrade partial credit.

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Activity Time (days) Predecessors Earliest Expected Completion Time (TE) Latest Expected Completion Time (TE) 1 4 2 5 1 3456782222 6 1 7 1 4 4 6 2,3 5 3 5 5,7 9 4 7 10 3 6,9 11 5 8,9,10 12 4 11 Slack Critical Path? Yes or No