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Oracle® TimesTen In-Memory Database SQL Reference
Release 11.2.1

Part Number E13070-03
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SYS.DUAL

The DUAL table can be used in a SELECT statement that references no other tables, but needs to return at least one row. Selecting from the DUAL table is useful for computing a constant expression with the SELECT statement. Because DUAL has only one row, the constant is returned only once.

Columns

Column name Type Description
DUMMY TT_VARCHAR (1) NOT INLINE NOT NULL 'X'