MySQL / Python语法错误

Question

I keep getting a error with a SQL query that is written in python.

Here is the code in question:

else:
    else_query = "SELECT count(*) FROM PARKING_SPOTS WHERE OCCUPANCY = %s"
    cursor.execute(else_query, (occupancy,)
                   " AND WHERE LOCATION = %s", (location,))

Here's the error message:

File "exp1", line 116
    " AND WHERE LOCATION = %s", (location,))
                             ^
SyntaxError: invalid syntax

Can anyone spot the error ? I've changed things around several times, including containing part of the SQL query in a variable, yet I receive the same error.

Answer 1

• your query is incorrect because you can't have 2 WHERE clauses
• you can only pass one querystring

so make that:

    else_query = """SELECT count(*) FROM PARKING_SPOTS WHERE OCCUPANCY = %s
                    AND LOCATION = %s
                 """
    cursor.execute(else_query, (occupancy, location))

parameters for the query need to be passed as a tuple