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Other Functions and Expressions
Use these other functions and expressions in an SQL value expression:
"CASE (Conditional) Expression" (page 295)
"CAST Expression" (page 298)
"COALESCE Function" (page 303)
"CURRENT_ROLE Function" (page 314)
"CURRENT_USER Function" (page 317)
"DECODE Function" (page 330)
"EXPLAIN Function" (page 339)
"ISNULL Function" (page 346)
"NULLIF Function" (page 377)
"NVL Function" (page 379)
"USER Function" (page 429)
See the individual entry for the function.
A conditional expression. The two forms of the CASE
expression are simple and searched.
Converts a value from one data type to another data type
that you specify.
Returns the value of the first expression in the list that
does not have a NULL value or if all the expressions have
NULL values, the function returns a NULL value.
Returns the role you logged in as.
Returns the user name you logged in as.
Compares expr to each test_expr value one by one in
the order provided.
Generates a result table describing an access plan for a
SELECT, INSERT, DELETE, UPDATE, or CALL statement.
Returns the first argument if it is not null, otherwise it
returns the second argument.
Returns the value of the first operand if the two operands
are not equal, otherwise it returns NULL.
Returns the value of the first operand unless it is NULL,
in which case it returns the value of the second operand.
Returns the user name you logged in as.
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