The format for the UPDATE command is the word UPDATE, followed by the name of the table to be updated. The next portion of the command consists of the word <u>SET</u>, followed by the name of the column to be updated, an equals sign, and the new value.
Explanation:
- An Update Query is an action query (SQL statement) that changes a set of records according to criteria you specify.
- The SQL UPDATE Query is used to modify the existing records in a table. You can use the WHERE clause with the UPDATE query to update the selected rows, otherwise all the rows would be affected.
- Update Queries let you modify the values of a field or fields in a table.
<u>UPDATE Syntax
</u>
- UPDATE table_name
- SET column1 = value1, column2 = value2, ...
- WHERE condition;
UPDATE table_name SET column1 = value1, column2 = value2, etc WHERE condition;
- table_name: name of the table
- column1: name of first , second, third column....
- value1: new value for first, second, third column....
- condition: condition to select the rows for which the
- values of columns needs to be updated.
Portrait, as well as 100 percent scale.
Answer:
The answers are: an IP datagram, and 3 forwading tables.
Explanation:
An IP datagram sent from a source host to a destination host will travel through 8 interfaces. 3 forwarding tables will be indexed to move the datagram from source to destination.
