Re: ERROR when inserting csv values into sql table

Hi,

Just a very long shot, may be column name "title" is getting conflicted
somehow. Try changing the column name to say "movie_name" ?
Thanks and Regards,
Adarsh Jaiswal


On Thu, Jun 13, 2019 at 5:05 PM Cravan <[email protected]> wrote:

> Hi Mark,
>
> It didn’t work, and I made some minor changes to my code as well.
>
> Thanks,
>
> Cravan
>
>
>
> *From: *Mark Wallace <[email protected]>
> *Date: *Thursday, 13 June 2019 at 7:31 PM
> *To: *"[email protected]" <[email protected]>
> *Cc: *cool kid <[email protected]>
> *Subject: *Re: ERROR when inserting csv values into sql table
>
>
>
> As Anthony E. Greene already mentioned yesterday (06/12/19 @ 08:07am
> EDT) in a comment on this thread, you are data typing imdbRating as
> INTEGER, when it should be NUMERIC.
>
>
>
> Try again with this DDL:
>
>
>
> CREATE TABLE movies (
>
>       "title" SERIAL PRIMARY KEY,
>
>       "year" INTEGER NOT NULL,
>
>       "runtime" INTEGER NOT NULL,
>
>       "imdbID" VARCHAR NOT NULL,
>
>       "imdbRating” *NUMERIC* NOT NULL
>
>   );
>
>
>
>
>
> Mark
>
>
>
> On Jun 13, 2019, at 03:40, Cravan <[email protected]> wrote:
>
>
>
> Hi guys,
>
> Have edited the code, but Im still getting an error. I have already
> edited my apostrophes and spacing and looked up examples from google to try
> and resolve my error to no avail. I also ensured that i defined
> DATABASE_URL properly. Sorry for the long traceback error at the end :P
> Please note that my csv values are stored in lists in each cell. They are
> arranged in a single column such as
>
> The Lego Movie;2014;100;tt1490017;7.8  <—  The last value (7.8) is of
> type numeric, not integer.
>
> This is my main code
>
> import csv
>
> import sys
>
> import os
>
> from sqlalchemy import Column, ForeignKey, Integer, String
>
> from sqlalchemy import create_engine
>
> from flask import Flask, render_template, request, session
>
> from flask_sqlalchemy import SQLAlchemy
>
> from flask_session import Session
>
>
>
> engine = create_engine(os.getenv("DATABASE_URL")) # database engine
> object from SQLAlchemy that manages connections to the database,#
> DATABASE_URL is an environment variable that indicates where the database
> lives
>
>
>
> def main():
>
>     f = open("movies.csv","r")
>
>     reader = csv.reader(f)
>
>     for row in f: # loop gives each column a name
>
>         vals = row.split(';')
>
>         title = vals[0]
>
>         year = vals[1]
>
>         runtime = vals[2]
>
>         imdbID = vals[3]
>
>         imdbRating = vals[4]
>
>         engine.execute('INSERT INTO
> movies("title","year","runtime","imdbID","imdbRating") VALUES ((title),
> (year), (runtime), (imdbID), (imdbRating))',
>
>         {"title": title, "year": year, "runtime": runtime, "imdbID":
> imdbID, "imdbRating": imdbRating })
>
>     engine.commit() # transactions are assumed, so close the transaction
> finished
>
> if __name__ == "__main__":
>
>     main()
>
>
>
> SQL code:
>
> CREATE TABLE movies (
>
>       "title" SERIAL PRIMARY KEY,
>
>       "year" INTEGER NOT NULL,
>
>       "runtime" INTEGER NOT NULL,
>
>       "imdbID" VARCHAR NOT NULL,
>
>       "imdbRating" INTEGER NOT NULL
>
>   );
>
> New error code:
>
> #############################
>
> Traceback (most recent call last):
>
>   File
> "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
>
> packages/sqlalchemy/engine/base.py", line 1244, in _execute_context
>
>     cursor, statement, parameters, context
>
>   File
> "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
>
> packages/sqlalchemy/engine/default.py", line 550, in do_execute
>
>     cursor.execute(statement, parameters)
>
> psycopg2.errors.UndefinedColumn: column "title" does not exist
>
> LINE 1: ...,"year","runtime","imdbID","imdbRating") VALUES ((title), (y...
>
>                                                              ^
>
> HINT:  There is a column named "title" in table "movies", but it cannot
> be re
>
> ferenced from this part of the query.
>
>
>
>
>
> The above exception was the direct cause of the following exception:
>
> Traceback (most recent call last):
>
>   File "import.py", line 26, in <module>
>
>     main()
>
>   File "import.py", line 23, in main
>
>     {"title": title, "year": year, "runtime": runtime, "imdbID": imdbID,
> "imd
>
> bRating": imdbRating })
>
>   File
> "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
>
> packages/sqlalchemy/engine/base.py", line 2166, in execute
>
>     return connection.execute(statement, *multiparams, **params)
>
>   File
> "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
>
> packages/sqlalchemy/engine/base.py", line 982, in execute
>
>     return self._execute_text(object_, multiparams, params)
>
>   File
> "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
>
> packages/sqlalchemy/engine/base.py", line 1155, in _execute_text
>
>     parameters,
>
> File
> "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
>
> packages/sqlalchemy/engine/base.py", line 1248, in _execute_context
>
>     e, statement, parameters, cursor, context
>
>   File
> "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
>
> packages/sqlalchemy/engine/base.py", line 1466, in _handle_dbapi_exception
>
>     util.raise_from_cause(sqlalchemy_exception, exc_info)
>
>   File
> "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
>
> packages/sqlalchemy/util/compat.py", line 383, in raise_from_cause
>
>     reraise(type(exception), exception, tb=exc_tb, cause=cause)
>
>   File
> "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
>
> packages/sqlalchemy/util/compat.py", line 128, in reraise
>
>     raise value.with_traceback(tb)
>
>   File
> "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
>
> packages/sqlalchemy/engine/base.py", line 1244, in _execute_context
>
>     cursor, statement, parameters, context
>
> File
> "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
>
> packages/sqlalchemy/engine/default.py", line 550, in do_execute
>
>     cursor.execute(statement, parameters)
>
> sqlalchemy.exc.ProgrammingError: (psycopg2.errors.UndefinedColumn) column
> "ti
>
> tle" does not exist
>
> LINE 1: ...,"year","runtime","imdbID","imdbRating") VALUES ((title), (y...
>
>                                                              ^
>
> HINT:  There is a column named "title" in table "movies", but it cannot
> be re
>
> ferenced from this part of the query.
>
>
>
> [SQL: INSERT INTO movies("title","year","runtime","imdbID","imdbRating")
> VALU
>
> ES ((title), (year), (runtime), (imdbID), (imdbRating))]
>
> [parameters: {'title': 'Title', 'year': 'Year', 'runtime': 'Runtime',
> 'imdbID
>
> ': 'imdbID', 'imdbRating': 'imdbRating\n'}]
>
> (Background on this error at: http: <http://sqlalche.me/e/f405>
> //sqlalche.me/e/f405 <http://sqlalche.me/e/f405>)
>
> Here’s a pic of the new table:
>
> <image001.png>
>
> Thanks,
>
> Cravan
>
>
>