Informix Error -33026: Blocks cannot be nested more than n levels.
Cause and resolution
Blocks cannot be nested more than n levels.
The preprocessor limits the number of nested levels to the specified value. Review the program structure preceding this point; the punctuation or keywords that close a block might have been omitted or might not have been recognized due to an earlier error. If all is as you intended it, you will have to reorganize the code to use fewer nested blocks.
Oninit® Troubleshooting Guidance
Reasons / Common Causes
-33026 fires when a program's blocks are nested deeper than the preprocessor's limit — per the official guidance, this can be a genuine over-nesting, or a symptom of an earlier unrecognized error that left a closing keyword/punctuation missing.
- Program blocks genuinely nested past the preprocessor's limit, per the official guidance — the direct cause.
- A block-closing keyword or punctuation omitted or unrecognized due to an earlier error, per the official guidance — an indirect cause.
Solutions / Resolution
- Review the program structure preceding this point for a missing block-closing keyword/punctuation, per the official guidance.
- If nesting is genuinely intended, reorganize the code to use fewer nested blocks, per the official guidance.
Examples
N/A
No specific triggering statement is documented beyond over-deep block nesting.
Diagnostic Checks
- Check preceding code for a missing block-closing keyword/punctuation, and reorganize to reduce nesting if the structure is genuinely intended.
Related Errors / Related Topics
- -33027 — "Record nesting too deep. Maximum is n." The same class of nesting-depth error, for record/data-structure declarations rather than program blocks.
Program blocks were nested past the preprocessor's limit — check for a missing block-closing keyword, or reduce nesting.