Answer: False
Explanation:
This means that the mappings between the two schemas may be specified in either one of these languages.In most relational DBMSs today, there is no specific language that performs the role of SDL. Instead, the internal schema is specified by a combination of functions, parameters, and specifications related to storage. These permit the DBA staff to control indexing choices and mapping of data to storage
Answer:
Following are the program in the Python Programming Language:
def check(num): #define function
if(num.isdigit()): #set if statement
return "yes"; #return yes if condition is true
else:
return "no";# return no if condition is false
string=input("Enter the numbers 0-9: ") #get input from the user
print(check(string)) #print and call the function
Output:
Enter the numbers 0-9: 1995
yes
Enter the numbers 0-9: 42,000
no
Explanation:
Here, we define a function "check()" and pass an argument in its parameter "num" inside the function.
- we set if-else conditional statement and check the value stored in the variable "num" is the digit by using built in function "isdigit()" then return "yes".
- Then, otherwise it return "no".
Finally, we get the input from the user in the variable "string" then, we call the function through "print()" function.
I think the answer is
3 - Usually, but we may need to convert the data types (date to text)
Because we can change the format, but depends of the original format type and in what type you need to format.
I think this can help.
Answer:
It will be a java code.
Explanation:
import java.util.Scanner;
public class StringInputStream {
public static void main (String [] args) {
Scanner inSS = null;
String userInput = "Jan 12 1992";
inSS = new Scanner(userInput);`
String userMonth = "";
int userDate = 0;
int userYear = 0;
/* Your solution goes here */
System.out.println("Month: " + userMonth);
System.out.println("Date: " + userDate);
System.out.println("Year: " + userYear);
return;
}
}
