Expressions
An expression specifies a value.
Authorization: The use of some of the expressions,
such as a scalar-fullselect, sequence-reference, function-invocation,
or cast-specification may require having the appropriate authorization.
For these expressions, the privileges held by the authorization ID
of the statement must include the following authorization:
- global variable. For information about authorization considerations, see Global variables.
- scalar-fullselect. For information about authorization considerations, see Queries.
- sequence-reference. The authorization to reference the sequence. For information about authorization considerations, see Notes.
- function-invocation. The authorization to execute a user-defined function. For information about authorization considerations, see Function invocation.
- array-element-specification. The authorization to reference an array type. For information about authorization considerations, see GRANT (type privileges).
- cast-specification. The authorization to reference a user-defined type. For information about authorization considerations, see CAST specification.
