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Database & SQL Basics Lite Edition [Ukr+Eng sub, 2016]

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Choose statements that relate to desktop (file-server) RDMS
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Which adjectives refer to data models
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Choose statements that relate to client-server RDMS
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What is database?
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PRIMARY KEY is one or several fields of a table that contain a reference to the foreign key field in another table.

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Consider the following table named STUDENT 

 ID NAME ID_INSTITUTERATING 
Левицький А.  
Стернюк У. I1 3.8 
Войтенко М. I2 3.5 
Бабич О. I2 4.1 

 

 

 

 

 

and the next table INSTITUTE

IDNAME
I1Computer science
I2Mathematics
I3Physics

 

 

 

 

which have a relationship by the field ID_INSTITUTE

What is the query that would produce the following result set:

NAME OF STUDENTNAME OF INSTITUTE
Стернюк У.Computer science
Войтенко М.Mathematics
Бабич О.Mathematics

 

 

 

 

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Consider the following table named STUDENT 

 ID NAME ID_INSTITUTERATING 
Левицький А.  
Стернюк У. I1 3.8 
Войтенко М. I2 3.5 
Бабич О. I2 4.1 

 

 

 

 

 

and the next table INSTITUTE

IDNAME
I1Computer science
I2Mathematics
I3Physics

 

 

 

 

which have a relationship by the field ID_INSTITUTE

How many records would the following query produce

SELECT STUDENT.ID, STUDENT.NAME, INSTITUTE.NAME

FROM STUDENT FULL JOIN INSTITUTE

ON STUDENT.ID_INSTITUTE=INSTITUTE.ID 

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If a table in a database has a foreign key then

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Consider the EMPLOYEE table containing the employee’s ID, his name, salary and the ID number of his manager.

Check the queries which produce the information about employees who earn more than their managers:

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What template should we use to show all records starting with ‘Україна’
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