ABAP Keyword Documentation → ABAP - Reference → Processing Internal Data → Meshes → Meshes - Using Mesh Paths
Mesh Path Expressions
Other versions:
7.31 | 7.40 | 7.54
Syntax
... mesh_path ...
Effect
Specifies a mesh path mesh_path
as a standalone mesh path expression at an operand position. The result of a mesh path expression is a row from the last path node of the mesh path. This row is described by the
result of the mesh path and has the corresponding row type.
An additional condition can be specified in the square brackets [ ... ] of each association, by using col1 = ... col2 = .... If the last path node contains multiple rows that fit the description, the first row found is read.
A mesh path expression is a special type of table expression and can be used in the same way as a table expression:
- Possible operands include all the reader positions and writer positions listed for table expressions.
- Using a chaining with structure component selector (
-), you can access a component of the row that was read.
If the follow-on node does not contain any rows that fulfill the condition in square brackets [ ...
], the response is the same as with normal table expressions. In other words, exception
CX_SY_ITAB_LINE_NOT_FOUND is raised, unless used in statement
ASSIGN, in predicate function
line_exists or in table function line_index.
Note
Since the rows of a mesh node cannot have tabular components, a mesh path expression cannot have any chainings to other table expressions.
Example