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SQL Reference
SQL Reference
:
OpenEdge SQL Elements and Statements in Backus Naur Form
:
Data types syntax in BNF
:
Expressions syntax in BNF
:
Conditional expression
:
Simple case expression
Simple case expression
simple_case_expr
::=
CASE
primary_expr
WHEN
expr
THEN
{
result_expr
|
NULL
}
[
,
...
]
[
ELSE
expr
|
NULL
]
END
