pyodbc

问题 I'm trying to process a very large query with pyodbc and I need to iterate over the rows without loading them all at once with fetchall(). Is there a good and principled way to do this? 回答1: Sure - use a while loop with fetchone . http://code.google.com/p/pyodbc/wiki/Cursor#fetchone row = cursor.fetchone() while row is not None: # do something row = cursor.fetchone() 回答2: you could also use cursor.fetchmany() if you want to batch up the fetches (defaults to 1 if you don't override it) http:/

问题 I've been trying to test various methods for making my code to run. To begin with, I have this list: member_list = [111,222,333,444,555,...] I tried to pass it into this query: query = pd.read_sql_query( """ select member id ,yearmonth from queried_table where yearmonth between ? and ? and member_id in ? """, db2conn, params = [201601, 201603, member_list]) However, I get an error that says: 'Invalid parameter type. param-index=2 param-type=list', 'HY105' So I looked around and tried using

问题 I need to send unicode to SQL Server with Python 2.7. I failed with pymssql. I'm now trying to get pypyodbc working (as opposed to pyodbc ), as it gives working unicode examples. The problem is that the connection string in the example doesn't look like anything I recognize. I looked at this, and, after a little trial and error, constructed this string: conn = pypyodbc.connect("DRIVER={SQL Server};SERVER='MyServer';UID='me';PWD='MyPassword';DATABASE='db'") Got back a DatabaseError focused on

问题 I tried a lot of examples from internet to include a MS Access connection to my python project without sucess I have my python project in Eclipse with Anaconda, and my code is: import win32com.client import pyodbc def ado(): ''' connect with com dispatch objs ''' conn = win32com.client.Dispatch(r'ADODB.Connection') DSN = ('PROVIDER = Microsoft.Jet.OLEDB.4.0;DATA SOURCE = ' + db + ';') conn.Open(DSN) rs = win32com.client.Dispatch(r'ADODB.Recordset') strsql = "select * from Empresas" rs.Open

问题 To run the normal school old python file in Apache Server. I had coded this way index.html <form action="/cgi-bin/hello_get.py" method="post"> First Name: <input type="text" name="first_name"> <br /> Last Name: <input type="text" name="last_name" /> <input type="submit" value="Submit" /> </form> hello_get.py #!C:/Users/Desktop/AppData/Local/Programs/Python/Python36-32/python # Import modules for CGI handling import cgi, cgitb import pyodbc # Create instance of FieldStorage form = cgi

问题 To anyone that can help, thank you in advance. I am running 64bit windows 10, 64bit office and 64bit python 3.7.2 Using pyodbc, I am trying to execute a Select statement such as this: "SELECT * FROM EconVars WHERE Year(ValueDate) = 1999" In order to do this, my code is as follows: existquery = """SELECT * FROM EconVars WHERE Year(ValueDate) = ?""" params = (1999,) cursor.execute(existquery,params) When I run this, I get the following error pyodbc.Error: ('HYC00', '[HYC00] [Microsoft][ODBC

问题 To anyone that can help, thank you in advance. I am running 64bit windows 10, 64bit office and 64bit python 3.7.2 Using pyodbc, I am trying to execute a Select statement such as this: "SELECT * FROM EconVars WHERE Year(ValueDate) = 1999" In order to do this, my code is as follows: existquery = """SELECT * FROM EconVars WHERE Year(ValueDate) = ?""" params = (1999,) cursor.execute(existquery,params) When I run this, I get the following error pyodbc.Error: ('HYC00', '[HYC00] [Microsoft][ODBC

问题 I am having a python application that uses mssql - instead of using pymssql, i was trying pyodbc. There seems to be no problems while running the application in a Windows local machine. While deploying the application in a dev env packaged as a container, I see the following errors. from pyodbc import Error 2017-04-14T13:58:28.858638588Z ImportError: Error loading shared library libodbc.so.2: No such file or directory (needed by /usr/local/lib/python3.5/site-packages/pyodbc.cpython-35m-x86_64

问题 I try to connect to MSSQL DB with python from Linux box ( Python 2.7 , Ubuntu 11.04 ) . Output that I receive is truncated to 500 characters. Please, see script and configs below. How it could be resolved? The problem I suppose in ODBC driver or near it. The code (pyodbc, pymssql): conn = pymssql.connect(host='my_remote_host', user='ro_user', password='password', database='current', as_dict=True) cur = conn.cursor() cur.execute(sql) for i in cur: print i conn.close() cnxn = pyodbc.connect

问题 I try to connect to MSSQL DB with python from Linux box ( Python 2.7 , Ubuntu 11.04 ) . Output that I receive is truncated to 500 characters. Please, see script and configs below. How it could be resolved? The problem I suppose in ODBC driver or near it. The code (pyodbc, pymssql): conn = pymssql.connect(host='my_remote_host', user='ro_user', password='password', database='current', as_dict=True) cur = conn.cursor() cur.execute(sql) for i in cur: print i conn.close() cnxn = pyodbc.connect