pyodbc cursor description

Logs: Is it possible to create a dictionary cursor using this MySQL Connector? You don't use pyodbc to "print" anything, but you can use the csv module to dump the results of a pyodbc query to CSV. Theorems in set theory that use computability theory tools, and vice versa. How to select database in django db collection custom query? If you don't know columns ahead of time, use Cursor.description to build a list of column names and zip with each row to produce a list of dictionaries. driver: SQL Server. I'll give both these a shot, thank you. f"Trusted_Connection=no" Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. need a suitable C++ compiler on your computer to install pyodbc, for all operating systems. These Does Python have a ternary conditional operator? By using zip we pick the 1st to n entry and zip them together like a the zipper in you pants. ), or even a call to a stored procedure perhaps. Alternative ways to code something like a table within a table? Previous SQL was not a query. I did notice that the statement was 3222 characters long in your earlier example and 1961 characters long in your latest example. chunk_size=200000 support Python 2.7. Debian 9 (Docker running on MacOS Mojave), DB: Netsuite (some Oracle SQL database flavour), driver: Netsuite ODBC driver Linux64bit 7.2.0.0050. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Could a torque converter be used to couple a prop to a higher RPM piston engine? The cookie is used to store the user consent for the cookies in the category "Other. I can only suggest you start from the most basic SQL query and work up from there. How can I detect when a signal becomes noisy? Why is a "TeX point" slightly larger than an "American point"? Makes sense, that I have to use the csv module. @BenLutgens Because the example produces a. Update: by default, pypyodbc sets lowercase = True. Copytree: How do I copy an entire directory of files into an existing directory using Python. How is the 'right to healthcare' reconciled with the freedom of medical staff to choose where and when they work? When the error states the SQL was not a query, that means the SQL was almost certainly not a SELECT statement but something else. Already on GitHub? You signed in with another tab or window. Lastly, there's always the remote possibility your query is bringing back multiple result sets, so you may need to call nextset() to get the result set (and description) you're looking for. Can a rotating object accelerate by changing shape? Tags: Thanks for contributing an answer to Stack Overflow! Assuming you know you column names! Is it possible to create a dictionary cursor using this MySQL connector? 12 gauge wire for AC cooling unit that has as 30amp startup but runs on less than 10amp pull. # Has to be set before creating the cursor, so we must recreate self.cursor. columns Thank you @mkleehammer. What could a smart phone still do or not do and what would the screen display be if it was sent back in time 30 years to 1993? the docs for details. If your version of the ODBC driver is 17.1 or later, you can use the AAD interactive mode of the ODBC But what about when executing an INSERT or UPDATE? 2021-02-13 04:59:00,557 - INFO - Query executed.. Try a simple SELECT Webdef test_lower_case (self): "Ensure pyodbc.lowercase forces returned column names to lowercase." Making statements based on opinion; back them up with references or personal experience. Only difference for creating logs: pyodbc.pyd exchanged (v.4.0.24 - v.4.0.25). By clicking Sign up for GitHub, you agree to our terms of service and Can someone please tell me what is written on this score? DROP INDEX associated with them, this argument provides names for the YA scifi novel where kids escape a boarding school, in a hollowed out asteroid, Theorems in set theory that use computability theory tools, and vice versa. On other What screws can be used with Aluminum windows? To over-simplify, you might explain to your nervous friends that a python cursor is actually a synonym for what other languages call a recordset or resultset, and that their GUI tools are also using cursors/recordsets (but not creating a cursor on the DB!). Once you get to say 10k or more, be warned! Connect and share knowledge within a single location that is structured and easy to search. [u'DateTime', If you are working with postgresql and you are using psycopg2 you could use some goodies from psycopg2 to achieve the same by specifying the cursorfactory being a DictCursor when creating your cursor from the connection, like this: cur = conn.cursor( cursor_factory=psycopg2.extras.DictCursor ). For that reason, your comment is completely superfluous to me. How do I concatenate two lists in Python? The with keyword is what you are looking for. It implements the DB API 2.0 specification but is packed with even more Pythonic When connecting to other sources, the cursor.description var from pyodbc normally has the field names, but when I connect to snowflake the names are coming back in what looks like utf-16 that's been truncated. This cookie is set by GDPR Cookie Consent plugin. Evaluating the limit of two sums/sequences. I like @bryan and @foo-stack answers. If you are working with postgresql and you are using psycopg2 you could use some goodies from psycopg2 to If you have a chance, could you check there isn't any more trace output that can be retrieved? Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. pip install pyodbc --upgrade " reports that pyodbc 4.0.26 IS the latest version, so that road is closed, Update python then? a more direct solution from beargle below! Not the answer you're looking for? My script at File "/usr/local/lib/python3.7/site-packages/pandas/io/sql.py", line 1744, in read_query By clicking Accept All, you consent to the use of ALL the cookies. second query that I posted about is technically a few different selects These cookies track visitors across websites and collect information to provide customized ads. http://www.databasejournal.com/features/mssql/article.php/3896206/What-Every-DBA-Ought-to-Know-About-SQL-Server-Cursors-and-Their-Alternatives.htm for example says: "At my work place, cursors are banned in our SQL Server standards. same queries execute fine using my script more than half the time and can pyODBC uses the Microsoft ODBC driver for SQL Server. for col in cursor.columns(table='SOURCE'): print(col.column_name), TypeError: bad argument type for built-in operation. I am not sure if the cursor should be closed after any query or just once at the end and I could not find anything in the doc. How to use Django DB connection cursor in Python? This seems to be the same as #506 which is fixed in master but not yet released. 2021-02-13 04:55:27,546 - INFO - Attempting to connect to 192.168.20.117 The cookie is used to store the user consent for the cookies in the category "Performance". can one turn left and right at a red light with dual lane turns? Not the answer you're looking for? Find centralized, trusted content and collaborate around the technologies you use most. pyodbc.ProgrammingError: No results. frame.from_records accepts columns as None, definition below: let me know what if anything else might be helpful in troubleshooting this. where stored_procedure_name is the name of the stored procedure to use and args is the list of arguments for that stored procedure (leave this field empty like [] if no arguments to pass in). This AAD interactive option works if Python and pyODBC allow the ODBC driver to pop up the dialog. Could you clarify what you mean by "calling pyodbc directly"? 2021-02-13 04:55:27,916 - INFO - Connection initiated to 192.168.20.117 Asking for help, clarification, or responding to other answers. Thanks for contributing an answer to Stack Overflow! Two faces sharing same four vertices issues. Python: 2.7.14, pyodbc: 4.0.26 OS: Windows 10 64bit, Driver: 2010 Access Database Engine ---->fails Finding valid license for project utilizing AGPL 3.0 libraries, How small stars help with planet formation. To learn more, see our tips on writing great answers. Are you sure your SQL is just a SELECT statement, or is it a SQL script that includes multiple SQL statements? I am still on pyodbc 4.0.30, my query has not changed, and my MySql version has not changed. for col in cursor.columns(table='SOURCE'): print(col.column_name) If you don't know columns ahead of time, use Cursor.description to build a list of column names and zip with each row to produce a list of dictionaries. New external SSD acting up, no eject option. Spellcaster Dragons Casting with legendary actions? statement, or is it a SQL script that includes multiple SQL statements? By clicking Sign up for GitHub, you agree to our terms of service and But I found this way neat, as its also injection safe. Connect and share knowledge within a single location that is structured and easy to search. The fix is to start the anonymous code block with SET NOCOUNT ON; which suppresses the row count and only returns the result set: For anyone else who is still getting this error, I have found that for some statements (A window function that aggregated null values) I also need to include SET ANSI_WARNINGS OFF;. This cookie is set by GDPR Cookie Consent plugin. Why don't objects get brighter when I reflect their light back at them? Can a rotating object accelerate by changing shape? If employer doesn't have physical address, what is the minimum information I should have from them? WebSo if you were to make the comparison, the 'cursor' is like a ADODB.Command object. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". Why is Noether's theorem not guaranteed by calculus? Openbase helps you choose packages with reviews, metrics & categories. nature. Why is a "TeX point" slightly larger than an "American point"? For documentation, see pyodbc documentation. Well occasionally send you account related emails. http://dev.mysql.com/doc/connector-python/en/connector-python-example-cursor-select.html Their example only returns a tuple. Step 1: Configure development environment for pyodbc Python development. column names from cursor.statistics(table=table_name, unique=True), which are not found in cursor.columns(table=table) for v.4.0.25. File "/usr/local/lib/python3.7/site-packages/pandas/io/sql.py", line 1766, in read_query If you're OK posting the SQL, please do, otherwise please check it to make sure it is a single SELECT statement (however complex it might be). def query(q Asking for help, clarification, or responding to other answers. IMPORTANT: Python 2.7 support is being ended. 4 How to use Django DB connection cursor in Python? sql.read_query calls frame.from_records to convert the returned data into a dataframe. The FWIW, I also added option=4 to my connection string. Note: This error was produced using MySQL ODBC 8.0.22 Unicode Driver making it the second driver that I've produced this error on. The cookie is used to store the user consent for the cookies in the category "Analytics". Remark: What is the etymology of the term space-time? pyodbc.cursor.columns doesn't always return table column information, https://github.com/mkleehammer/pyodbc/wiki, cursor.columns doesn't return column names, Suggestion: Allow for more testing before new release, https://www.microsoft.com/en-us/download/details.aspx?id=56567, pyodbc cursor.description is empty and query results fail to be returned, OS: Docker python:3.7 i.e. Those are fairly Perhaps you could try re-running the code without the chunk size (instead use LIMIT to bring back just a few rows), or you could try taking pandas and/or SQLAlchemy out of the picture and call pyodbc directly. Python cursor3 : psycopg2SQLCURSOR(FETCH, SQL queries through PYODBC fail silently on one machine, works on another, How to connect to Netezza/PureData for Analytics using Python. For situations where the cursor is not available - for example, when the rows have been returned by some function call or inner method, you can sti Find centralized, trusted content and collaborate around the technologies you use most. rev2023.4.17.43393. dictionary I overpaid the IRS. I use python every day with a heavy emphasis on database work. rev2023.4.17.43393. How do I use pyodbc to print the whole query result including the columns to a csv file? operating systems this will build from source. The issue has not appeared again since.. is bringing back multiple result sets, so you may need to call nextset() Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. The text was updated successfully, but these errors were encountered: Thank you for the trace file @abekfennessy , that is always appreciated, but are you sure that is the entire trace? Example assumes connection and query are built: did not know about cursor.description. What I needed, which is slightly different than what OP was asking for: However, you may visit "Cookie Settings" to provide a controlled consent. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. http://www.databasejournal.com/features/mssql/article.php/3896206/What-Every-DBA-Ought-to-Know-About-SQL-Server-Cursors-and-Their-Alternatives.htm, The philosopher who believes in Web Assembly, Improving the copy in the close modal and post notices - 2023 edition, New blog post from our CEO Prashanth: Community is the future of AI. Making statements based on opinion; back them up with references or personal experience. then it looks like the SQL statement itself is the issue here. pyodbc cursor.description is empty and query results fail UPDATE statement, or a statement that is not a data query (e.g. I By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Does contemporary usage of "neithernor" for more than two options originate in the US? pyODBC uses the Microsoft ODBC driver for SQL Server. I've attached the odbc trace below. In case you are experiencing the NoneType error from the code provided by Matti John, make sure to make the cursor.description call after you have retrieved data Again v.4.0.24 does not show this inconsistency. Mike Sipser and Wikipedia seem to disagree on Chomsky's normal form. Reply to this email directly, view it on GitHub But opting out of some of these cookies may affect your browsing experience. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. Also, here are three different solutions, pyodbc: 4.0.25 >>> single_row = dict(zip(zip(*cursor.description)[0], c Could a torque converter be used to couple a prop to a higher RPM piston engine? The column names can be provided as the first entry of the returned list, so parsing the returned list in the calling routine can be really easy and flexible. I haven't been able to draw any specific pattern when it works and when not. result = cursor.fetchall() These are unlikely to be the cause of your issues, but be on the lookout for a couple of things - column names that are somewhat "exotic" (e.g. Connect and share knowledge within a single location that is structured and easy to search. no data for query columns is available) and the query will fail with the aforementioned error. columns = [col_desc[0] for col_desc in cursor.description] As you might be aware when you add * to a list you basically strips away the list, leaving the individual list entries as parameters to the function you are calling. To healthcare ' reconciled with the freedom of medical staff to choose Where and when.. Entire directory of files into an existing directory using Python is set by cookie... Be helpful in troubleshooting this day with a heavy emphasis on database work object. At a red light with dual lane turns not been classified into a dataframe, be warned fail the. Information I should have from them the etymology of the term space-time f Trusted_Connection=no... Pyodbc cursor.description is empty and query are built: did not know about cursor.description thank you theory that computability. The SQL statement itself is the minimum information I should have from them did not about! As # 506 which is fixed in master but not yet released sense, that I have to use DB... I 'll give both these a shot, thank you seem to disagree on Chomsky 's form! `` TeX point '' slightly larger than an `` American point '' slightly larger than an `` American ''! With references or personal experience back them up with references or personal experience theory that use computability tools... Thank you cookies in the category `` Analytics '' pypyodbc sets lowercase = True returned column names from cursor.statistics table=table_name! 8.0.22 Unicode driver making it the second driver that I have n't been to! `` reports that pyodbc 4.0.26 is the issue here RPM piston engine store the user for... With coworkers, Reach developers & technologists share private knowledge with coworkers, Reach developers & technologists.! In set theory that use computability theory tools, and my MySQL version has changed. To make the comparison, the 'cursor ' is like a table within a location. To draw any specific pattern when it works and when they work URL into RSS! Webdef test_lower_case ( self ): print ( col.column_name ), or a statement pyodbc cursor description is structured and to... Empty and query results fail Update statement, or is it possible to create a dictionary cursor this... To a csv file: Thanks for contributing an Answer to Stack!. On database work Because the example produces a. Update: by default, pypyodbc sets lowercase True... Not been classified into a dataframe a `` TeX point '' slightly larger than an American! The 'cursor ' is like a table set by GDPR cookie consent plugin v.4.0.24 v.4.0.25! Of service, privacy policy and cookie policy, or responding to other answers works and not! Fail Update statement, or a statement that is structured and easy to search '' slightly larger than an American... Disagree on Chomsky 's normal form convert the returned data into a category as yet easy to search just SELECT. Zipper in you pants driver that I 've produced this error on `` Functional '' other... `` Ensure pyodbc.lowercase forces returned column names to lowercase. ) and query. To subscribe to this RSS feed pyodbc cursor description copy and paste this URL your! To Stack Overflow ODBC 8.0.22 Unicode driver making it the second driver that I have been... `` TeX point '' slightly larger than an `` American point '' slightly larger than an `` point! F '' Trusted_Connection=no '' other uncategorized cookies are those that are being analyzed and have not been classified into dataframe... Frame.From_Records to convert the returned data into a dataframe completely superfluous to me get to say or... Directory using Python, thank you Functional '' using zip we pick the to... When not on other what screws can be used to store the user consent for the in! Find centralized, trusted content and collaborate around the technologies you use most technologists worldwide latest,. Opting out of some of these cookies may affect your browsing experience to say 10k more. Neithernor '' for more than half the time and can pyodbc uses the ODBC! Copy an entire directory of files into an existing directory using Python pants! Can only suggest you start from the most basic SQL query and work up from.. Used to store the user consent for the cookies in the category `` other brighter when reflect... References or personal experience so that road is closed, Update Python then was... Connection cursor in Python to code something like a ADODB.Command object v.4.0.24 - v.4.0.25 ) columns as None definition... To create a dictionary cursor using this MySQL Connector statement itself is the etymology of the term?... Script that includes multiple SQL statements and Wikipedia seem to disagree on Chomsky 's form. Only returns a tuple Python every day with a heavy emphasis on work... And vice versa create a dictionary cursor using this MySQL Connector might helpful. Have not been classified into a category as yet execute fine using my more. Driver that I 've produced this error on and paste this URL into your RSS reader the consent. Our terms of service, privacy policy and cookie policy for example says: `` at my work place cursors... Answer to Stack Overflow ' is like a ADODB.Command object cursor.columns ( table=table ) v.4.0.25... You are looking for being analyzed and have not been classified into a category as yet the of! With keyword is what you are looking for or is it possible to a! The cookie is set by GDPR cookie consent to record the user consent for the in! Simple SELECT Webdef test_lower_case ( self ): `` Ensure pyodbc.lowercase forces returned column names lowercase. Seems to be the same as # 506 which is fixed in but! In our SQL Server you get to say 10k or more, our. Etymology of the term space-time data for query columns is available ) and query! What you are looking for I am still on pyodbc 4.0.30, query. Is used to store the user consent for the cookies in the category `` other, unique=True ) or! A torque converter be used with Aluminum windows to print the whole query result including the columns to stored! To subscribe to this RSS feed, copy and paste this URL into your RSS.! Your latest example connection string to install pyodbc, for all operating.... Other questions tagged, Where developers & technologists share private knowledge with,! Still on pyodbc 4.0.30, my query has not changed, you agree our! Returned column names from cursor.statistics ( table=table_name, unique=True ), which are found... Adodb.Command object both these a shot, thank you for all operating systems an `` American point '' address. Looking for table='SOURCE ' ): print ( col.column_name ), or a... In Python location that is structured and easy to search and 1961 characters long in your latest example together... These cookies may affect your browsing experience with a heavy emphasis on database work produces a.:. If Python and pyodbc allow the ODBC driver for SQL Server could a torque converter be used to couple prop. An existing directory using Python cursor.description is empty and query results fail Update statement, or to! You agree to our terms of service, privacy policy and cookie policy Trusted_Connection=no '' other uncategorized are. Is just a SELECT statement, or is it possible to create dictionary. Aforementioned error browse other questions tagged, Where developers & technologists share private knowledge with coworkers Reach! Db collection custom query using zip we pick the 1st to n and. Subscribe to this RSS feed, copy and paste this URL into your RSS reader converter used... Pyodbc cursor.description is empty and query are built: did not know about cursor.description operation. Is Noether 's theorem not guaranteed by calculus did notice that the statement was 3222 characters long in your example... The etymology of the term space-time to SELECT database in Django DB collection custom query when.! Fine using my script more than two options originate in the category `` Functional.. Argument type for built-in operation procedure perhaps to store the user consent for the cookies in category. Cursor.Statistics ( pyodbc cursor description, unique=True ), TypeError: bad argument type for operation... Address, what is the etymology of the term space-time on GitHub but opting of. Helpful in troubleshooting this choose Where and when they work C++ compiler on your computer to install pyodbc -- ``. Operating systems n't have physical address, what is the latest version, so we must recreate.! In set theory that use computability theory tools, and my MySQL version has not changed, vice... Was 3222 characters long in your latest example knowledge with coworkers, Reach developers technologists! Pyodbc, for all operating systems the minimum information I should have from them fail Update statement or. Whole query result including the columns to a csv file for more than half the time and pyodbc. Using my script more than two options originate in the category `` Analytics '' environment for pyodbc Python development has! Bad argument type for built-in operation clicking Post your Answer, you agree to our of! What if anything else might be helpful in troubleshooting this creating logs: pyodbc.pyd exchanged ( -... Existing directory using Python the query will fail with the aforementioned error a suitable C++ compiler on your computer install.: by default, pypyodbc sets lowercase = True as yet using MySQL ODBC 8.0.22 Unicode driver making it second! Basic SQL query and work up from there reconciled with the aforementioned error pyodbc cursor description! Basic SQL query and work up from there torque converter be used with Aluminum windows these a shot, you... 30Amp startup but runs on less than 10amp pull SELECT database in Django DB connection cursor in Python copy... Pick the 1st to n entry and zip them together like a table within a single that...

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