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3 years ago

Describe the concept of a cursor and how it is used in embedded SQL.

Computers and Technology

1 answer:

Korvikt [17]3 years ago

7 0

Answer:

Cursor is the temporary area created when the SQL statement is executed.

Explanation:

Data base management system allows

 Entering Data

 Housekeeping

 Querying data

 Printing reports

Cursor contains the information about the selected statement and the rows data accessed by it. This space is used to store the data retrieve from data base

A cursor is used to get rows from the query that has many rows in its result sets a cursor is work as a handle and identifier in SQL query. it is very necessary in SQL because it is an object which is used to store the output of query.

A cursor is used to retrieve rows from a query that has multiple rows in its result set. A cursor is a handle or an identifier for the SQL query and a position within the result set.

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kogti [31]

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3 years ago

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Suppose that a local area network requires seven letters for user names. lower- and uppercase letters are considered the same.

Naddik [55]

<span>If a user name can have seven letters (with no distinction between upper and lower case), and if a letter can be repeated, then the maximum number of names is 26x26x26x26x26x26x26, or 8,031,810,176. That is, slightly more than eight billion names are possible.</span>

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3 years ago

A network administrator is configuring an ACL with the command access-list 10 permit 172.16.32.0 0.0.15.255. Which IPv4 address

lord [1]

Answer:

For this wild card mask 0.0.15.255 the ACE IP address will be 172.16.47.254

Explanation:

ACL is the access control list that is used to enlist the ip addresses that allowed or restricted to access the network. ACE is an IP address from the list ACL that has all rules and regulations related to access of network. The ACE could be in the range of IP address in ACL. ACL can be calculated with the help of initial IP address adding with wild card mask.

Initial IP address is = 172.16.32.0

Wild card mask =0.0.15.255

by adding above values we can find the last IP address of ACL.

after addition

Final IP address is = 172.16.47.255

The options that are available with question, Only option between the range is 172.16.47.254. So we can say that This is the only ACE IP address in options.

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3 years ago

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tigry1 [53]

Answer:

A??

Explanation:

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3 years ago

How is an operating system like a translator?

emmasim [6.3K]

Answer:

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