PYODBC truncates the response of a SQL Server FOR JSON query

Question

I\'m having issues trying to get a SQL Server JSON result set to play nicely with PYODBC. My Python/Flask skills aren\'t the best, so I\'m not entirely sure if this is somet

Answer 1

I ran into this same bizarre issue today. The JSON result, which ought to be a single row and column, is cut off at 2033 characters.

However, the result set is all there, just spread across many rows! You can reconstruct it:

rows = cursor.fetchall()
json_result = ''
json_result = json_result.join([row[0] for row in rows])

Or alternately:

rows = cursor.fetchall()
search_results = json.loads(''.join([row[0] for row in rows]))

Switching between ODBC Driver 13 for SQL Server and SQL Server drivers didn't help. I'm on Windows 10, Python 3.7, pyodbc 4.0.26, and SQL Server 2017.

This seems like a bug.