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The values of existing data can be modified using the SQL ________ command, which can be used to change several column values at once.

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Anthougoidn

Answer:

The values of existing data can be modified using the SQL ___Update_____ command, which can be used to change several column values at once.

Explanation:

However, if you are interested in modifying some columns, then you must specify the columns of interest by using Update (table name) Set column1, column2, etc., which assigns a new value for the columns that you want to update, with each column value separated by a comma.  The SQL (Structured Query Language) Update command is used to update data of an existing database table.

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