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2020-12-07 03:13:23
Oracle Comparison Functions
1906
Introduction to Oracle Database Oracle Tables and Data definition Modifying data Oracle Query and Filter Oracle data types Joining tables Oracle Operators Grouping data Constraints
COALESCE – show you how to substitute null with a more meaningful alternative.
DECODE – learn how to add if-then-else logic to a SQL query.
NVL – return the first argument if it is not null, otherwise, returns the second argument.
NVL2 – show you how to substitute a null value with various options.
NULLIF – return a null if the first argument equals the second one, otherwise, returns the first argument.
Glossary List
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