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Control Flow Functions
Built-In functions for assessing data to determine what results to return.
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CASE OPERATOR
Returns the result where value=compare_value or for the first condition that is true. -
DECODE
Decrypts a string encoded with ENCODE(), or, in Oracle mode, matches expressions. -
DECODE_ORACLE
Synonym for the Oracle mode version of DECODE(). -
IF Function
If expr1 is TRUE, returns expr2; otherwise it returns expr3. -
IFNULL
Check whether an expression is NULL. -
NULLIF
Returns NULL if expr1 = expr2. -
NVL
Synonym for IFNULL. -
NVL2
Returns a value based on whether a specified expression is NULL or not.
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