ABAP Keyword Documentation →  ABAP Glossary 

host variable

ABAP data object (usually a variable) specified in an operand position of an Open SQL statement or of a statically embedded Native SQL statement. In Open SQL, a host variable must be prefixed with the escape character @; in Native SQL, with the escape character :. In ADBC, the placeholder ? (to which ABAP data objects are bound) is used instead of host variables.

Other versions: 7.31 | 7.40 | 7.54