Скачать или смотреть PICK the Perfect JOIN Operation Every Time!

Learn how to choose the perfect JOIN operation every time in SQL! In this video, we'll cover the different types of JOINs, including INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL OUTER JOIN. You'll learn how to determine which JOIN operation to use based on your data and query requirements, and how to avoid common pitfalls and errors. Whether you're a beginner or an experienced SQL user, this video will help you master the art of JOINing tables and take your database skills to the next level.
So if have question like following you can use this video-
1. How to use join in DBMS.
2. Where to use JOIN in DBMS.
3. How correctly write the syntax of join.
4.How to know which question is asking for join
5. How to identify the question of join.
6. How I can score good marks in question of join in DBMS.
Previous video- join -    • JOIN PRACTICALLY  
Previous video- FOREIGN KEY-    • Foreign key constraints check key default ...  
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Consider the following tables PATIENT and TEST and answer the

questions that follow :
Table : PATIENT
PCODE NAME
PHONE DTADMIT TESTID
6473 Amit Sharma
912356899 19-JUN-2017 T102
7134
Rose Mathew
886744536 12-NOV-2017 T101
8786 Tina Sharma Arora 889088765 06-DEC-2017 T102
6477
Vijay Shah
714567445 07-DEC-2017 T502
7658 Venkat Fazal
865545343 31-DEC-2017 T101
Note : NAME holds the Names of patients.
DTADMIT holds Dates on which a patient was admitted to
hospital.

TESTID holds Ids of Medical tests done on patients.

Table : TEST
TESTID TESTNAME
COST
T101
Platelet Count
200.00
T102 Hemogram
190.00
T301 Malaria Detection 350.00
T502
Glucose Test
150.00
Name the Primary keys in both the tables and foreign key in
‘PATIENT’ table.
State the reason for your choice.
With reference to the above given tables (in Q6 b), write commands
in SQL for (i) to (iii).
(i) To display Names of Patients, TESTID and Test names for
those Patients who were admitted between ‘01-DEC-2017’ and
‘15-DEC-2017’ (both dates inclusive).
(ii) To display Names of Patients, Test names and Cost of Test for
those Patients who have ‘‘Sharma’’ in their names.
(iii) To increase the cost of those tests in the table ‘‘TEST’’ by
less than 50.00 that have cost below less than 200.00
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