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NVL « Conversion Functions « Oracle PL/SQL Tutorial
Oracle PL/SQL Tutorial
Conversion Functions
NVL
15.3.NVL
15.3.1.
NVL Function is used if there are null values.
15.3.2.
Use NVL() to convert date columns
15.3.3.
NVL() converts a null to a known value.
15.3.4.
Use nvl() to convert null value to 0