Prefer line_exists( ) over READ TABLE TRANSPORTING NO FIELDS

WarningClean ABAP & Modern Syntax#EC LINE_EXISTSRemote Enabled

Overview

Prefer line_exists( ) over READ TABLE with NO FIELDS.

ATC Finding Message: Prefer line_exists( ... ) instead of READ TABLE ... TRANSPORTING NO FIELDS

Rationale

READ TABLE TRANSPORTING NO FIELDS followed by a sy-subrc check is a procedural way to ask whether a row exists. line_exists( ) expresses membership in one expression and can be used directly in a condition. It also removes the risk of checking a sy-subrc that was overwritten by an unrelated statement.

Non-Compliant

READ TABLE lt_customers TRANSPORTING NO FIELDS WITH KEY customer_id = lv_id.
IF sy-subrc = 0.
  process_customer( lv_id ).
ENDIF.

Compliant

IF line_exists( lt_customers[ customer_id = lv_id ] ).
  process_customer( lv_id ).
ENDIF.

Suppression

To suppress findings for this rule, append the pseudo-comment to the statement:

" Standard pseudo-comment:
... "#EC LINE_EXISTS

" SAP CI_ prefix format:
... "#EC CI_LINE_EXISTS

Technical Details

• Native ATC Class: ZCL_SKYLINT_PREF_LINE_EXISTS
• Implementation File: zcl_skylint_pref_line_exists.clas.abap