如何在SQL数据库中将JSON对象存储为字符串

Question

Using python, json, and pyodbc, is there a python function to store a json object in a Text field in a SQL database?

For example:

cnxn = pyodbc.connect( MY CONNECTION STRING )
cursor = cnxn.cursor()
cursor.execute("UPDATE TABLE1 SET FIELD1 = '" + json.dumps(pythonDictionary) + "' WHERE FIELD2 = 'some value'")

I always get syntax error because i am not properly escaping the special symbols in the json object, i simply want that json dump to be converted to proper sql string, is there a function in python to do that?!

Answer 1

Instead of escaping yourself, you should just use parameterized values:

cursor.execute("UPDATE TABLE1 SET FIELD1 = ? WHERE FIELD2 = 'some value'", (json.dumps(pythonDictionary)) )

How to use variables in SQL statement in Python?