What is the problem in this code? SQL Worksheet21 with recursive empl (emp_number, mgr.number ) as22232425262728293031323334B5select EMPLOYEE NUMBER, MANAGER NUMBERfrommanagerunion allselect manager.EMPLOYEE NUMBER, empl.mgr_numberfrom manager, emplwhere manager.MANAGER_NUMBERempl.emp_number)select from empl;ORA-P0905: ass ng kevord

I am not able to see the database, but do check the column names are matching or not. Since there is…

Answered: What is the problem in this code?

Engineering

Computer Science

What is the problem in this code?

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

Types of Loop

Loops are the elements of programming in which a part of code is repeated a particular number of times. Loop executes the series of statements many times till the conditional statement becomes false.

Loops

Any task which is repeated more than one time is called a loop. Basically, loops can be divided into three types as while, do-while and for loop. There are so many programming languages like C, C++, JAVA, PYTHON, and many more where looping statements can be used for repetitive execution.

While Loop

Loop is a feature in the programming language. It helps us to execute a set of instructions regularly. The block of code executes until some conditions provided within that Loop are true.

Question

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What is the problem in this code?

SQL Worksheet
21 with recursive empl (emp_number, mgr.number ) as
22
23
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25
26
27
28
29
30
31
32
33
34
B5
select EMPLOYEE NUMBER, MANAGER NUMBER
from
manager
union all
select manager.EMPLOYEE NUMBER, empl.mgr_number
from manager, empl
where manager.MANAGER_NUMBER
empl.emp_number)
select from empl;
ORA-P0905: ass ng kevord

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