How do I properly use strings to create a Python MySQL query?

Question

I'm trying to write a MySQL query in Python, but I keep getting syntax error # 1064 (42000) when I try to execute it. The data is fetched, but the error prevents the query from finishing.

    mysql.connector.errors.ProgrammingError: 1064
    (42000): You have an error in your SQL syntax; check
    the manual that corresponds to your MySQL server
    version for the right syntax to use near '1
'(data in address_line_1)' NULL '(data in city field)'
'(data in postal code field)' '(data in state code field)' 'US'
(latitude data) (longitude data) '(first two characters of is_active field data)' at line 1

It tells me more or less where the error was, but not what caused it. I think I might be having trouble properly quoting something in the query string. I can't tell what the error is, because, to me, the query seems right, and I don't know all the peculiarities of Python MySQL to be able to diagnose formatting errors.

Here's the table creation command (this one works, after spending hours tweaking things):

    sql=("CREATE TABLE IF NOT EXISTS `locations` ("
"   `id` BIGINT NOT NULL AUTO_INCREMENT PRIMARY KEY,"
"   `location_id` VARCHAR(48),"
"   `is_valid` BOOLEAN,"
"   `street_line_1` VARCHAR(48),"
"   `street_line_2` VARCHAR(48),"
"   `city` VARCHAR(16),"
"   `postal_code` VARCHAR(8),"
"   `state_code` CHAR(2),"
"   `country_code` CHAR(2),"
"   `latitude` DECIMAL(10,6),"
"   `longitude` DECIMAL(10,6),"
"   `accuracy` VARCHAR(12),"
"   `is_active` BOOLEAN,"
"   `is_commercial` BOOLEAN,"
"   `is_forwarder` BOOLEAN,"
"   `delivery_point` VARCHAR(18),"
"   `last_sale_date` DATE,"
"   `total_value` INT(12)"
")  ENGINE = InnoDB")

That's 17 fields that are not the auto-incremented ID key. Here's the actual insert query:

    sql = ("INSERT INTO `locations`(`location_id`, `is_valid`, `street_line_1`,"
"   `street_line_2`, `city`, `postal_code`, `state_code`, `country_code`,"
"   `latitude`, `longitude`, `accuracy`, `is_active`, `is_commercial`,"
"   `is_forwarder`, `delivery_point`, `last_sale_date`, `total_value`)"
"   VALUES(%s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s)")

What am I missing? Thank you for the help.

ScaisEdge · Accepted Answer · 2018-10-28 16:56:10Z

2

a first suggestion is for separate the %s with comma

 sql = ("INSERT INTO `locations`(`location_id`, `is_valid`, `street_line_1`,"
"   `street_line_2`, `city`, `postal_code`, `state_code`, `country_code`,"
"   `latitude`, `longitude`, `accuracy`, `is_active`, `is_commercial`,"
"   `is_forwarder`, `delivery_point`, `last_sale_date`, `total_value`)"
"   VALUES(%s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s)")

answered Oct 28, 2018 at 16:56

ScaisEdge

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olisch · Accepted Answer · 2018-10-28 16:57:20Z

1

I guess your values won't include "," so VALUES(%s %s....) is incorrect. You need to use VALUES(%s, %s, ...) instead.

answered Oct 28, 2018 at 16:57

olisch

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