Character Functions - 1 |
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CharacteristicsSingle-row character functions accept character data as input and return either character or numeric values. Character functions that return character values return values of the same data type as their input argument. Character functions that return number values can take any character data type as their input argument. There are two types of single-row character function:
![]() The NATURAL JOIN clause and the USING clause are mutually exclusive. They cannot be used in the same SELECT statement. Use the USING clause if your tables contain more than one column whose names match to explicitly identify the name of the columns that you want to join.
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