ABAP Keyword Documentation → ABAP Glossary
column selector
The ~ character. A column col of a
data source can be addressed in a
query from
ABAP SQL using name~col,
where name is the name of the entity in which the column is defined. This
type of addressing is necessary when multiple database tables are accessed and the name of a column occurs in a number of different database tables or if two columns are compared with one another by a comparison in an
SQL condition.