埋め込みの説明
@1@ : エラーの原因となったデータ名.
例題
[P2424.cob] 000001 IDENTIFICATION DIVISION. 000002 PROGRAM-ID. P2424. 000003 ENVIRONMENT DIVISION. 000004 INPUT-OUTPUT SECTION. 000005 FILE-CONTROL. 000006 SELECT REPFILE ASSIGN TO SYS001. 000007 DATA DIVISION. 000008 FILE SECTION. 000009 FD REPFILE REPORT REP1. 000010 WORKING-STORAGE SECTION. 000011 REPORT SECTION. 000012 RD REP1 PAGE 46 000013 HEADING 1 000014 FIRST DETAIL 7 000015 LAST DETAIL 44 000016 CONTROL WCTL. 000017 01 TYPE PAGE HEADING. 000018 02 LINE 01 COLUMN 35 PIC X(5) VALUE SPACE. 000019 PROCEDURE DIVISION. 000020 END PROGRAM P2424.
P2424.cob 16: JMN2424I-S CONTROL句の制御データ名'WCTL'は,未定義です.この制御データ名は,無効となります.