Reading sqlalchemy error returns invalid name because it contains a NULL character or an invalid unicode character



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1















I'm using sqlalchemy to read a query. My code is the next:



def conection(file_name, server, database, uid, pwd):
cnxn = create_engine("mssql+pyodbc:///?odbc_connect=".format(urllib.parse.quote_plus("DRIVER=SQL SERVER;
SERVER=0;PORT=1433;DATABASE=1;UID=2;PWD=3;TDS_Version=8.0;".format(server, database, uid, pwd))))
pd.read_sql(query, cnxn, chunksize=100)

parser = argparse.ArgumentParser(description='Connect to the ODBC and extract the tables')
parser.add_argument('-table', type=str)
args = parser.parse_args()

sql_path = os.path.join('..', 'SQL')
filename_base = args.table
sql_filename = os.path.join(sql_path, filename_base)

with open(os.path.join('..', '..', '..', 'configuration', 'connnection.json')) as f:
data = json.load(f)

query = obtain_query(sql_filename)
cnxn = conection(filename_base,
data[filename_base]['server'],
data[filename_base]['database'],
data[filename_base]['uid'],
data[filename_base]['pwd'])


However I receive the following error:



sqlalchemy.exc.ProgrammingError: (pyodbc.ProgrammingError) ('42000', "[42000] [Microsoft][ODBC SQL Server Driver][SQL Server]Incorrect syntax near 'L'. (102) (SQLExecDirectW); [42000] [Microsoft][ODBC SQL Server Driver][SQL Server]'.C.u.s.t.o.m.e.r.C.o.d.e.' is an invalid name because it contains a NULL character or an invalid unicode character. (1055)")


Here is an example of my table:



enter image description here



As you can see, I don't have null values or invalid characters since it's just numbers as text. I already checked and there is no null values or unicode characters.



The query I'm using is just a basic select:



SELECT
[Customer]
,[Account]
,[Country]
,[Metric1]
,[Metric2]
,[Metric3]
,[Metric4]
FROM
[Table1]









share|improve this question
























  • Can you show us the query you use?

    – Owen
    Nov 15 '18 at 16:38











  • @Owen I just added it to the description.

    – Daniel Zapata
    Nov 15 '18 at 16:47






  • 1





    OK, can you show the code you use to execute that query? I'm asking because the error is in the query itself. It looks like a column name is malformed (or possibly the table name).

    – Owen
    Nov 15 '18 at 16:50












  • @Owen Sure! I just updated the description with it

    – Daniel Zapata
    Nov 15 '18 at 17:18






  • 1





    The error is showing something that called CustomerCode (a column, perhaps) is being sent as C.u.s.t.o.m.e.r.C.o.d.e Print your query and have a look at it.

    – Owen
    Nov 15 '18 at 17:23

















1















I'm using sqlalchemy to read a query. My code is the next:



def conection(file_name, server, database, uid, pwd):
cnxn = create_engine("mssql+pyodbc:///?odbc_connect=".format(urllib.parse.quote_plus("DRIVER=SQL SERVER;
SERVER=0;PORT=1433;DATABASE=1;UID=2;PWD=3;TDS_Version=8.0;".format(server, database, uid, pwd))))
pd.read_sql(query, cnxn, chunksize=100)

parser = argparse.ArgumentParser(description='Connect to the ODBC and extract the tables')
parser.add_argument('-table', type=str)
args = parser.parse_args()

sql_path = os.path.join('..', 'SQL')
filename_base = args.table
sql_filename = os.path.join(sql_path, filename_base)

with open(os.path.join('..', '..', '..', 'configuration', 'connnection.json')) as f:
data = json.load(f)

query = obtain_query(sql_filename)
cnxn = conection(filename_base,
data[filename_base]['server'],
data[filename_base]['database'],
data[filename_base]['uid'],
data[filename_base]['pwd'])


However I receive the following error:



sqlalchemy.exc.ProgrammingError: (pyodbc.ProgrammingError) ('42000', "[42000] [Microsoft][ODBC SQL Server Driver][SQL Server]Incorrect syntax near 'L'. (102) (SQLExecDirectW); [42000] [Microsoft][ODBC SQL Server Driver][SQL Server]'.C.u.s.t.o.m.e.r.C.o.d.e.' is an invalid name because it contains a NULL character or an invalid unicode character. (1055)")


Here is an example of my table:



enter image description here



As you can see, I don't have null values or invalid characters since it's just numbers as text. I already checked and there is no null values or unicode characters.



The query I'm using is just a basic select:



SELECT
[Customer]
,[Account]
,[Country]
,[Metric1]
,[Metric2]
,[Metric3]
,[Metric4]
FROM
[Table1]









share|improve this question
























  • Can you show us the query you use?

    – Owen
    Nov 15 '18 at 16:38











  • @Owen I just added it to the description.

    – Daniel Zapata
    Nov 15 '18 at 16:47






  • 1





    OK, can you show the code you use to execute that query? I'm asking because the error is in the query itself. It looks like a column name is malformed (or possibly the table name).

    – Owen
    Nov 15 '18 at 16:50












  • @Owen Sure! I just updated the description with it

    – Daniel Zapata
    Nov 15 '18 at 17:18






  • 1





    The error is showing something that called CustomerCode (a column, perhaps) is being sent as C.u.s.t.o.m.e.r.C.o.d.e Print your query and have a look at it.

    – Owen
    Nov 15 '18 at 17:23













1












1








1








I'm using sqlalchemy to read a query. My code is the next:



def conection(file_name, server, database, uid, pwd):
cnxn = create_engine("mssql+pyodbc:///?odbc_connect=".format(urllib.parse.quote_plus("DRIVER=SQL SERVER;
SERVER=0;PORT=1433;DATABASE=1;UID=2;PWD=3;TDS_Version=8.0;".format(server, database, uid, pwd))))
pd.read_sql(query, cnxn, chunksize=100)

parser = argparse.ArgumentParser(description='Connect to the ODBC and extract the tables')
parser.add_argument('-table', type=str)
args = parser.parse_args()

sql_path = os.path.join('..', 'SQL')
filename_base = args.table
sql_filename = os.path.join(sql_path, filename_base)

with open(os.path.join('..', '..', '..', 'configuration', 'connnection.json')) as f:
data = json.load(f)

query = obtain_query(sql_filename)
cnxn = conection(filename_base,
data[filename_base]['server'],
data[filename_base]['database'],
data[filename_base]['uid'],
data[filename_base]['pwd'])


However I receive the following error:



sqlalchemy.exc.ProgrammingError: (pyodbc.ProgrammingError) ('42000', "[42000] [Microsoft][ODBC SQL Server Driver][SQL Server]Incorrect syntax near 'L'. (102) (SQLExecDirectW); [42000] [Microsoft][ODBC SQL Server Driver][SQL Server]'.C.u.s.t.o.m.e.r.C.o.d.e.' is an invalid name because it contains a NULL character or an invalid unicode character. (1055)")


Here is an example of my table:



enter image description here



As you can see, I don't have null values or invalid characters since it's just numbers as text. I already checked and there is no null values or unicode characters.



The query I'm using is just a basic select:



SELECT
[Customer]
,[Account]
,[Country]
,[Metric1]
,[Metric2]
,[Metric3]
,[Metric4]
FROM
[Table1]









share|improve this question
















I'm using sqlalchemy to read a query. My code is the next:



def conection(file_name, server, database, uid, pwd):
cnxn = create_engine("mssql+pyodbc:///?odbc_connect=".format(urllib.parse.quote_plus("DRIVER=SQL SERVER;
SERVER=0;PORT=1433;DATABASE=1;UID=2;PWD=3;TDS_Version=8.0;".format(server, database, uid, pwd))))
pd.read_sql(query, cnxn, chunksize=100)

parser = argparse.ArgumentParser(description='Connect to the ODBC and extract the tables')
parser.add_argument('-table', type=str)
args = parser.parse_args()

sql_path = os.path.join('..', 'SQL')
filename_base = args.table
sql_filename = os.path.join(sql_path, filename_base)

with open(os.path.join('..', '..', '..', 'configuration', 'connnection.json')) as f:
data = json.load(f)

query = obtain_query(sql_filename)
cnxn = conection(filename_base,
data[filename_base]['server'],
data[filename_base]['database'],
data[filename_base]['uid'],
data[filename_base]['pwd'])


However I receive the following error:



sqlalchemy.exc.ProgrammingError: (pyodbc.ProgrammingError) ('42000', "[42000] [Microsoft][ODBC SQL Server Driver][SQL Server]Incorrect syntax near 'L'. (102) (SQLExecDirectW); [42000] [Microsoft][ODBC SQL Server Driver][SQL Server]'.C.u.s.t.o.m.e.r.C.o.d.e.' is an invalid name because it contains a NULL character or an invalid unicode character. (1055)")


Here is an example of my table:



enter image description here



As you can see, I don't have null values or invalid characters since it's just numbers as text. I already checked and there is no null values or unicode characters.



The query I'm using is just a basic select:



SELECT
[Customer]
,[Account]
,[Country]
,[Metric1]
,[Metric2]
,[Metric3]
,[Metric4]
FROM
[Table1]






python sql sql-server sqlalchemy






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 15 '18 at 17:17







Daniel Zapata

















asked Nov 15 '18 at 16:34









Daniel ZapataDaniel Zapata

197113




197113












  • Can you show us the query you use?

    – Owen
    Nov 15 '18 at 16:38











  • @Owen I just added it to the description.

    – Daniel Zapata
    Nov 15 '18 at 16:47






  • 1





    OK, can you show the code you use to execute that query? I'm asking because the error is in the query itself. It looks like a column name is malformed (or possibly the table name).

    – Owen
    Nov 15 '18 at 16:50












  • @Owen Sure! I just updated the description with it

    – Daniel Zapata
    Nov 15 '18 at 17:18






  • 1





    The error is showing something that called CustomerCode (a column, perhaps) is being sent as C.u.s.t.o.m.e.r.C.o.d.e Print your query and have a look at it.

    – Owen
    Nov 15 '18 at 17:23

















  • Can you show us the query you use?

    – Owen
    Nov 15 '18 at 16:38











  • @Owen I just added it to the description.

    – Daniel Zapata
    Nov 15 '18 at 16:47






  • 1





    OK, can you show the code you use to execute that query? I'm asking because the error is in the query itself. It looks like a column name is malformed (or possibly the table name).

    – Owen
    Nov 15 '18 at 16:50












  • @Owen Sure! I just updated the description with it

    – Daniel Zapata
    Nov 15 '18 at 17:18






  • 1





    The error is showing something that called CustomerCode (a column, perhaps) is being sent as C.u.s.t.o.m.e.r.C.o.d.e Print your query and have a look at it.

    – Owen
    Nov 15 '18 at 17:23
















Can you show us the query you use?

– Owen
Nov 15 '18 at 16:38





Can you show us the query you use?

– Owen
Nov 15 '18 at 16:38













@Owen I just added it to the description.

– Daniel Zapata
Nov 15 '18 at 16:47





@Owen I just added it to the description.

– Daniel Zapata
Nov 15 '18 at 16:47




1




1





OK, can you show the code you use to execute that query? I'm asking because the error is in the query itself. It looks like a column name is malformed (or possibly the table name).

– Owen
Nov 15 '18 at 16:50






OK, can you show the code you use to execute that query? I'm asking because the error is in the query itself. It looks like a column name is malformed (or possibly the table name).

– Owen
Nov 15 '18 at 16:50














@Owen Sure! I just updated the description with it

– Daniel Zapata
Nov 15 '18 at 17:18





@Owen Sure! I just updated the description with it

– Daniel Zapata
Nov 15 '18 at 17:18




1




1





The error is showing something that called CustomerCode (a column, perhaps) is being sent as C.u.s.t.o.m.e.r.C.o.d.e Print your query and have a look at it.

– Owen
Nov 15 '18 at 17:23





The error is showing something that called CustomerCode (a column, perhaps) is being sent as C.u.s.t.o.m.e.r.C.o.d.e Print your query and have a look at it.

– Owen
Nov 15 '18 at 17:23












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