Develop Reference

Errors adding a new column to a table in MySQL with Python

I'm new to MySQL and database in general, however I'm having some issue when I try to add a new column of integer inside my table. To add a new column I'm doing so:
import mysql.connector
mydb = mysql.connector.connect(
# host, user, password and database
)
mycursor = mydb.cursor(buffered = True)
# some stuff to get the variable domain
mycursor.execute('ALTER TABLE domainsMoreUsed ADD {} INTEGER(10)'.format(domain)) # domain is a string
but i get this error:
raise errors.get_mysql_exception(exc.errno, msg=exc.msg,
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 'in INTEGER(10)' at line 1
I get the same error above also trying:
mycursor.execute('ALTER TABLE domainsMoreUsed ADD %s INTEGER(10)' % domain)
Instead when I use:
mycursor.execute('ALTER TABLE domainsMoreUsed ADD %s INTEGER(10)', (domain))
i get:
raise ValueError("Could not process parameters")
ValueError: Could not process parameters
I read some post of other users about the same error, but I couldn't find what I need. I'm pretty sure about the SQL syntax being correct.
I'm using MySQL 8.0 with Python 3.8.3 on Windows 10.
Thank you in advance for your help.

What is the string domain set to? The error message syntax to use near 'in INTEGER(10)' at line 1, implies "in", which is a reserved word. If you want to use that for a table or column name, you need to add backticks: " ` " (left of '1' on the top row of your keyboard) around them.
Change your queries like this:
mycursor.execute('ALTER TABLE domainsMoreUsed ADD `{}` INTEGER(10)'.format(domain))
mycursor.execute('ALTER TABLE domainsMoreUsed ADD `%s` INTEGER(10)', (domain))

SQL compilation error-- Snowsql validation using python

I am following this tutorial :https://docs.snowflake.com/en/sql-reference/functions/validate.html
to try and 'return errors by query ID and saves the results to a table for future reference'
however for a seamless transfer I don't want to be putting the job id always as it would require me to go to snowflake console- go to history- get the jobid -copy and paste it to python code.
Instead I wanted to go with just the tablename which is a variable and 'last_query_id()' and give me the list errors. Is there any way i can achieve this?
import snowflake.connector
tableName='F58155'
ctx = snowflake.connector.connect(
user='*',
password='*',
account='*')
cs = ctx.cursor()
ctx.cursor().execute("USE DATABASE STORE_PROFILE_LANDING")
ctx.cursor().execute("USE SCHEMA PUBLIC")
try:
ctx.cursor().execute("PUT file:///temp/data/{tableName}/* #%
{tableName}".format(tableName=tableName))
except Exception:
pass
ctx.cursor().execute("truncate table {tableName}".format(tableName=tableName))
ctx.cursor().execute("COPY INTO {tableName} ON_ERROR = 'CONTINUE' ".format(tableName=tableName,
FIELD_OPTIONALLY_ENCLOSED_BY = '""', sometimes=',', ERROR_ON_COLUMN_COUNT_MISMATCH = 'TRUE'))
I have tried the below validate function....it is giving me error on this line
the error is "SQL compilation error:
syntax error line 1 at position 74 unexpected 'tableName'.
syntax error line 1 at position 83 unexpected '}'."
ctx.cursor().execute("create or replace table save_copy_errors as select * from
table(validate({tableName},'select last_query_id()'))");
ctx.close()

The line
ctx.cursor().execute("create or replace table save_copy_errors as select * from
table(validate({tableName},'select last_query_id()'))");
should be replaced with these two
job_id = ctx.cursor().execute("select last_query_id()").fetchone()[0]
ctx.cursor().execute(f"create or replace table save_copy_errors as select * from
table(validate({tableName},job_id=>'{job_id}'))");

Query for Access mdb can't be run in Python on Linux

I want to read a *.mdb database in odoo and import some data to odoo but I cannot read some fields.
In *.mdb I have 2 tables
first table is USERINFO with fields: SSN, Name, USERID
second table is CHECKINOUT with fields: USERID, CHECKTIME, CHECKTYPE
I use mdbtools and it runs well when I make this query
query1 = 'SELECT CHECKTIME,CHECKTYPE FROM CHECKINOUT'
The data I want is out.
But it errors when I run these two queries.
query2 = 'SELECT USERID,CHECKTIME FROM CHECKINOUT'
pyodbc.Error: ('HY000', 'The driver did not supply an error!')
it's look the problem in in "USERID" field
and in the other query
query3 = """
SELECT c.CHECKTIME, c.CHECKTYPE, u.SSN, u.`Name`, u.USERID
FROM CHECKINOUT c, USERINFO u
WHERE c.USERID = u.USERID """
Error at Line : syntax error near c.CHECKTIME syntax error near
c.CHECKTIME Got no result for 'SELECT c.CHECKTIME, c.CHECKTYPE, u.SSN
FROM CHECKINOUT c, USERINFO u WHERE c.USERID=u.USERID; ' command
pyodbc.OperationalError: ('08001', "[08001] Couldn't parse SQL\n (1)
(SQLExecDirectW)")
The query runs well in the DBeaver, but didn't running well in python.

I cant grab columns from a table in a database in python

I am trying to grab information from columns in a database using python.
code:
import pyodbc
conn = pyodbc.connect(r'DSN=MACCD')
cursor = conn.cursor()
cursor.execute('SELECT first,second,third,fourth,fifth * FROM Test')
for column in cursor.fetchall():
print(column)
error:
Traceback (most recent call last):
File "C:\Users\jgp22\Desktop\Python\GrabDatas.py", line 5, in <module>
cursor.execute('SELECT first,second,third,fourth,fifth * FROM Test')
pyodbc.ProgrammingError: ('42000', "[42000] [Microsoft][ODBC Microsoft
Access Driver] Syntax error (missing operator) in query expression 'fifth
*'. (-3100) (SQLExecDirectW)")

You have a bad SQL query. Cannot put * like that in select queries
Either put a comma before asterisk
SELECT first,second,third,fourth,fifth,* FROM Test;
Or remove asterisk
asterisk is used to represent all columns in sql so using it in your query means you are fetching all columns, therefore it is useless in this scenario to use asterisk is u want only few columns

"cannot find the input table or query" error for a SELECT statement

I am saving MS Access tables as CSV files using Python. There is a table in the MS Access database that is named 'Perm_Site Info'. There is a space in the naming in MS Access. When I run the below snippet, the code blows up. I have tried having single and as well as double quotes in the cursor.execute but no fruition. I request your kind assistance in order to understand how to fix this.
import pyodbc
import csv
conn_string = ("DRIVER={Microsoft Access Driver (*.mdb, *.accdb)};DBQ=C:\\Access\\permissions.accdb")
conn = pyodbc.connect(conn_string)
cursor = conn.cursor()
cursor.execute("select * from Perm_Site Info;")
with open('C:\\Desktop\\Python Files\\Perms_Site_Info.csv','wb') as csvfile:
writer = csv.writer(csvfile)
writer.writerow([i[0] for i in cursor.description])
writer.writerows(cursor)
cursor.close()
conn.close()
print 'All done for now'
The error:
cursor.execute("select * from Perm_Site Info;")
ProgrammingError: ('42S02', "[42S02] [Microsoft][ODBC Microsoft Access Driver] The Microsoft Access database engine cannot find the input table or query 'Perm_Site'. Make sure it exists and that its name is spelled correctly. (-1305) (SQLExecDirectW)")

Try using brackets around the entire table name. It's barking because it doesn't know what to do with the space.
cursor.execute("select * from [Perm_Site Info];")