Write a SELECT statement that returns these columns from the Orders table: The c

Q: Write a SELECT statement that returns these columns from the Orders table: The c

SQL query is as below: length(str)-> is used to return the length substring(str,start,len)--> used to return the last four digits Query: Select card_number, length(card_number) as card_length,substring(card_number,16,4) as four_digits from Orders

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Question

Write a SELECT statement that returns these columns from the Orders table:

The card_number column

The length of the card_number column

The last four digits of the card_number column

When you get that working right, add the columns that follow to the result set. This is more difficult because these columns require the use of functions within functions.

A column that displays the last four digits of the card_number column in this format: XXXX-XXXX-XXXX-1234. In other words, use Xs for the first 12 digits of the card number and actual numbers for the last four digits of the number.

Explanation / Answer

SQL query is as below:

length(str)-> is used to return the length

substring(str,start,len)--> used to return the last four digits

Query:

Select card_number, length(card_number) as card_length,substring(card_number,16,4) as four_digits

from Orders

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Write a SELECT statement that returns these columns from the Orders table: The o

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Write a SELECT statement that returns these columns from the Orders table: The c

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