We wanted a quick hack to initialize a table with a set of rows. The computer we were using had a free version DBVisualizer which only supported running one SQL statement at a time and we didn't want to install SQLPlus or SQL Loader yet. This Wikipedia Insert (SQL) entry shows how to do multi-row insert in various flavours of SQL. The Oracle solution uses a system table called DUAL which seems to act as a placeholder in the SQL statement and return the result of any query.
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