Updating joined tables

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You do not want to copy the rows, only the column structure of the table.When using Create Table As Select (CTAS), all rows from your query will be used to populate the new table you are creating unless you specify a false condition in the WHERE clause.When using INTO to copy a table, all rows from your query will be used to populate the new table you are creating unless you specify a false condition in the WHERE clause of your query.In the solution provided, the expression “1 = 0” in the predicate of the query causes no rows to be returned.

You want to copy rows from one table to another by using a query.For example, you want to insert rows from DEPT into tables DEPT_EAST, DEPT_WEST, and DEPT_MID.All three tables have the same structure (same columns and data types) as DEPT and are currently empty.But if you do not specify your target columns, you must insert into You want to create a new table having the same set of columns as an existing table.For example, you want to create a copy of the DEPT table and call it DEPT_2.

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