A parameter name identifies a
parameter (host variable) in an application containing SQL statements from the database system.Syntax
<parameter_name> ::= :<identifier> | :<identifier>(<identifier>) | :<identifier>(.<identifier>.)
identifierExplanation
The conventions of the programming language in which the SQL statements of the database system are embedded determine the number of significant characters in the parameter name.
Identifiers for parameter names may contain the characters "." and "_", but not as the first character.