SQL Views

Опубликовано: 15 Апрель 2023
на канале: SQL Learning Resources: Dr. Cecelia Allison

202

SQL Views

This video demonstrates how to Create SQL Views. This video discusses how to create SQL views, how to query SQL views, how to update a table through SQL views and how to delete SQL views.

SQL Views are queries that derive their data from one or more tables.

SQL Views are commonly used to simplify complex SQL queries, summarize data from several tables, and protect data.

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▶️ VIEW QUERY SYNTAXES FROM THE VIDEO:

► HOW TO CREATE A VIEW:

CREATE VIEW Name_Of_View AS
SELECT Columns
FROM Table_Name;

► HOW TO QUERY A VIEW:

SELECT Columns
FROM Name_Of_View;

► HOW TO UPDATE A TABLE THROUGH A VIEW:

UPDATE Name_Of_View
SET Column_Name = 'New_Value'
WHERE Column_Name = 'Current_Value';

► HOW TO DELETE A VIEW:

DROP VIEW Name_Of_View;

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