Error
Error Code:
4148
MySQL Error 4148: Unexpected Enclosed By Characters
Description
This error indicates that MySQL's bulk parser encountered extra characters immediately following the closing `ENCLOSED BY` delimiter within a data file, specifically during operations like `LOAD DATA INFILE`. It typically points to a mismatch between the expected data format and the parsing rules defined in the SQL statement. The error specifies the row number and file where the anomaly was detected.
Error Message
Unexpected characters after ending ENCLOSED BY character found at row %ld in file '%s'.
Known Causes
4 known causesExtra Characters After Delimiter
The data file contains characters immediately after the specified `ENCLOSED BY` character that are not part of the expected field data or field terminator.
Incorrect `ENCLOSED BY` Specification
The `ENCLOSED BY` character defined in the `LOAD DATA INFILE` statement does not accurately reflect how the fields are enclosed in the actual data file.
Unescaped Enclosing Characters
The data itself contains the `ENCLOSED BY` character within a field, but it is not properly escaped, causing the parser to prematurely close the field.
Data Formatting Inconsistencies
Inconsistent use of delimiters, line endings, or character encoding within the data file can lead to misinterpretation by the MySQL parser.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service