SQL for Database Construction
SQL views can be used to hide:

columns and rows only.
both of the above can be hidden by an SQL view.
None of these
complicated SQL syntax only.

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SQL for Database Construction
When using the SQL INSERT statement:

rows cannot be copied in mass from one table to another only.
rows can be inserted into a table only one at a time only.
rows can either be inserted into a table one at a time or in groups.
rows can be modified according to criteria only.

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