Informix Error -2016: A comment has been opened, but not closed. The last comment begun was opened on line line, character column.

Reasons / Common Causes

-2016 fires when a comment is opened with { but never closed with } before the end of the specification — per the official guidance, the message reports the exact line/character where the unclosed comment began.

1. A { comment-open symbol with no matching }, per the official guidance — the direct, only cause.

Solutions / Resolution

1. Insert the appropriate close-comment symbol at the correct location, per the official guidance, using the reported line/character position to find where the comment began.

Examples

An unclosed comment

ATTRIBUTES
  order_id = order_id; { note about this field
  status = status;
-- -2016: the { before "note" was never closed

Corrected

ATTRIBUTES
  order_id = order_id; { note about this field }
  status = status;

Diagnostic Checks

1. Use the reported line/character position to locate the unclosed comment, and add the missing }.

Related Errors / Related Topics

• -2015 — "An open comment symbol, { ... was found inside an already open comment." A related comment-syntax error, about a nested { rather than a comment left open at the end.

A { comment was never closed — use the reported position to find and close it.