* :Look at the following block (1Q)Declarev_date date := sysdate;Beginwhile v_date < last_day(v_date) loopv_date :=v_date +1;End loop;dbms_output.put_line(v_date);End;If today's date is 17th April 2007, what will be displayed when this block executes?31-DEC-07 O4/17/2007 O01-MAY-074/30/2007 (O ?What is wrong with the following cursor declaration(2Q) Cursor dept_curs (p_loc_id number(4)) ISSelect * from departmentsWhere location_id =p_loc_id;Nothing is wrong, the cursor declaration is correct.You cannot reference a cursor parameter in a WHERE clause.The parameter should be coded as: (p_loc_id NUMBER)The parameter should be coded as: (p_loc_id IN NUMBER)

:Look at the following block (1 Declare v_date date := sysdate; Begin while v_date< last_day(v_date) loop v_date :=v_date+1; End loop; dbms_output.put_line(v_date); End; Iftoday's date is 17th April 2007, what will be displayed when this block executes? 31-DEC-07 O 4/17/2007 O 01-MAY-07 4/30/2007 O

:Look at the following block (1 Declare v_date date := sysdate; Begin while v_date< last_day(v_date) loop v_date :=v_date+1; End loop; dbms_output.put_line(v_date); End; Iftoday's date is 17th April 2007, what will be displayed when this block executes? 31-DEC-07 O 4/17/2007 O 01-MAY-07 4/30/2007 O

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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Concept explainers

SQL

SQL stands for Structured Query Language, is a form of communication that uses queries structured in a specific format to store, manage & retrieve data from a relational database.

Queries

A query is a type of computer programming language that is used to retrieve data from a database. Databases are useful in a variety of ways. They enable the retrieval of records or parts of records, as well as the performance of various calculations prior to displaying the results. A search query is one type of query that many people perform several times per day. A search query is executed every time you use a search engine to find something. When you press the Enter key, the keywords are sent to the search engine, where they are processed by an algorithm that retrieves related results from the search index. Your query's results are displayed on a search engine results page, or SER.

Question

* :Look at the following block (1
Q)
Declare
v_date date := sysdate;
Begin
while v_date < last_day(v_date) loop
v_date :=v_date +1;
End loop;
dbms_output.put_line(v_date);
End;
If today's date is 17th April 2007, what will be displayed when this block executes?
31-DEC-07 O
4/17/2007 O
01-MAY-07
4/30/2007 (O

?What is wrong with the following cursor declaration(2
Q) Cursor dept_curs (p_loc_id number(4)) IS
Select * from departments
Where location_id =p_loc_id;
Nothing is wrong, the cursor declaration is correct.
You cannot reference a cursor parameter in a WHERE clause.
The parameter should be coded as: (p_loc_id NUMBER)
The parameter should be coded as: (p_loc_id IN NUMBER)

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