In Oracle database, if we have any date field such as ORDER_DATE field in any ofour table then we can use TO_CHAR function to extract YEAR from ORDER_DATE.This can be done by including the following in SELECT clause:1: we can include "SUBSTRING(order_date,8,4)"II: we can include SUBSTRING(order_date,4,3)"III we can include SUBSTR(order_date,4,3)"IV we can include SUBSTR(order_date,8,4)"IV In Oracle database, If we have Iname field and fname in our table then we cancombine concatenate these two fields to create a full name This combination can beused in SELECT clause to generate result:I: 'Mr./Mrs '|| Iname||', '||fname as full_NameII: concat('Mr./Mrs ', Iname, fname) as full_NameI & II: are correctI & II: are not correct||I & II: are not correctI & II: are correct

Answer of above two questions mentioned below:-

Answered: I: 'Mr./Mrs '|| Iname||', '||fname as…

I: 'Mr./Mrs '|| Iname||', '||fname as full_Name II: concat('Mr./Mrs ', Iname, fname) as full_Name I & II: are correct I & II: are not correct || OI & II: are not correct OI & II: are correct OI

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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In Oracle database, If LNAME and FNAME fields exist in our table, then we can include the following in SELECT clause: I: LNAME||', '||FNAME as Full_Name II: I & II: are correct I & II: are not correct concat(concat(Iname,', I & II: are correct || I & II: are not correct '), fname) full_name
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