True or False Questions 5. Suppose we have this SOL query: select Year, Salary f

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True or False Questions

5. Suppose we have this SOL query: select Year, Salary from JobHistoryrable" and we use a MysqlDataReader called Reader: while (Reader.Read)) IDataRecord Row -(IDataRecord) Reader; Console.Writeline (String. Format ("(0) (1", Row[0],Row[1) Then Row[0] is the same as Row[ "Year"]. by checking whether array subscripts are within bounds, whether a 6. In many situations, we can avoid the need for exception handling file exists, whether a divisor is 0, and so on. 7. It is possible to have a chart displaying just one value. 8. When we use a MysqlDataReader object called Reader, we need a statement:

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Answers)

5) In the above code the SQL query is:
select year, salary from JobHistoryTable;

So the year is the first attribute to be selected.

Thus, when we use the MySqlDataReader, then when we print the Row[0] it is equivalent to the Row["Year"] as in the 0'th position Year value will be present always.

This it is True that Row[0] is the same as Row["Year"].

6) In many situations, we can avoid the need for exception handling by checking whether array subscripts are withing bounds, whether a file exists, whether a divisor is 0, and so on.

True, in many situations if the developer knows the type of exceptions that may occur such that if the exception occurs for checking whether array subscripts are withing bounds or whether a file exists or whether a divisor is 0, then in all these cases we can avoid exception and handle it locally even with if-else conditions. But having exception handling is a good practice in case something unexpected happens.

7) It is possible to have a chart displaying just one value.

True, Yes you can always create a chart such as a Pie-chart or a car-chart or graph using one value. But that won't be too meaningful in sense. Thus it is possible to have a chart displaying just one value but not to much meaning can be derived out of it as charts and graphs are meant for comparisons with other sets of values.

8) Question is incomplete

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