Comments (8)
gordthompson
commented on June 30, 2024
1
The square brackets are normal; they are how unixODBC formats the string values in the trace file.
However, the connection string is enclosed in double-quotes for pyodbc but not for isql:
isql
Str In = [DRIVER={ODBC Driver 18 for SQL Server};SERVER=XXXXXX,1433;DATABASE=XXXXXX;UID=XXXXXX...][length = 149 (SQL_NTS)]
pyodbc
Str In = ["DRIVER={ODBC Driver 18 for SQL Server};SERVER=tcp:XXXXXXX,1433;DATABASE=XXXXXXX;UID=XXXXX...][length = 151 (SQL_NTS)]
That's the difference.
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gordthompson
commented on June 30, 2024
Is your Python code running in any sort of special environment like Anaconda or similar?
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AlexVialaBellander
commented on June 30, 2024
Hi @gordthompson, negative. We pip install directly to the global python installation in the container.
For demonstration purposes:
FROM python:3.11
RUN get all the required linux packages, including ms odbc 18, etc, etc
RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
CMD start appfrom pyodbc.
v-chojas
commented on June 30, 2024
Compare an ODBC trace of the working and non-working case.
I suspect something is different with the connection string (escaping special characters in passwords?)
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AlexVialaBellander
commented on June 30, 2024
Hi @v-chojas, I will gladly supply said traces. Could you instruct me or point me in the direction of how to get the types of traces that you are looking for?
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gordthompson
commented on June 30, 2024
https://github.com/mkleehammer/pyodbc/wiki/Troubleshooting-%E2%80%93-Generating-an-ODBC-trace-log
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AlexVialaBellander
commented on June 30, 2024
Morning from Europe @gordthompson and @v-chojas ☀️ Thanks for sharing the troubleshooting page.
isql
[ODBC][26][1715065290.944892][__handles.c][499] Exit:[SQL_SUCCESS] Environment = 0xaaaae2575470 [ODBC][26][1715065290.944967][SQLAllocHandle.c][395] Entry: Handle Type = 2 Input Handle = 0xaaaae2575470 UNICODE Using encoding ASCII 'UTF-8' and UNICODE 'UCS-2LE'[ODBC][26][1715065290.945041][SQLAllocHandle.c][531]
Exit:[SQL_SUCCESS]
Output Handle = 0xaaaae2576180
[ODBC][26][1715065290.945150][SQLDriverConnect.c][751]
Entry:
Connection = 0xaaaae2576180
Window Hdl = (nil)
Str In = [DRIVER={ODBC Driver 18 for SQL Server};SERVER=XXXXXX,1433;DATABASE=XXXXXX;UID=XXXXXX...][length = 149 (SQL_NTS)]
Str Out = 0xffffcaa1de18
Str Out Max = 2048
Str Out Ptr = (nil)
Completion = 0
[ODBC][26][1715065291.385037][__handles.c][499]
Exit:[SQL_SUCCESS]
Environment = 0xaaaae25c6470
[ODBC][26][1715065291.385086][SQLGetEnvAttr.c][157]
Entry:
Environment = 0xaaaae25c6470
Attribute = -534
Value = 0xffffcaa1b648
Buffer Len = 128
StrLen = 0xffffcaa1b5e4
[ODBC][26][1715065291.385095][SQLGetEnvAttr.c][254]Error: HY092
[ODBC][26][1715065291.385108][SQLFreeHandle.c][220]
Entry:
Handle Type = 1
Input Handle = 0xaaaae25c6470
DIAG [01000] [Microsoft][ODBC Driver 18 for SQL Server][SQL Server]Changed database context to 'XXXXXXXX'.[ODBC][26][1715065291.385144][__handles.c][499]
Exit:[SQL_SUCCESS]
Environment = 0xaaaae2719370
[ODBC][26][1715065291.385155][SQLGetEnvAttr.c][157]
Entry:
Environment = 0xaaaae2719370
Attribute = -534
Value = 0xffffcaa1b648
Buffer Len = 128
StrLen = 0xffffcaa1b5e4
[ODBC][26][1715065291.385168][SQLGetEnvAttr.c][254]Error: HY092
[ODBC][26][1715065291.385180][SQLFreeHandle.c][220]
Entry:
Handle Type = 1
Input Handle = 0xaaaae2719370
DIAG [01000] [Microsoft][ODBC Driver 18 for SQL Server][SQL Server]Changed language setting to us_english.[ODBC][26][1715065291.385268][__handles.c][499]
Exit:[SQL_SUCCESS]
Environment = 0xaaaae27197c0
[ODBC][26][1715065291.385280][SQLGetEnvAttr.c][157]
Entry:
Environment = 0xaaaae27197c0
Attribute = -534
Value = 0xffffcaa1b648
Buffer Len = 128
StrLen = 0xffffcaa1b5e4
[ODBC][26][1715065291.385289][SQLGetEnvAttr.c][254]Error: HY092
[ODBC][26][1715065291.385299][SQLFreeHandle.c][220]
Entry:
Handle Type = 1
Input Handle = 0xaaaae27197c0
[ODBC][26][1715065291.385313][SQLDriverConnect.c][1809]
Exit:[SQL_SUCCESS_WITH_INFO]
Connection Out [DRIVER=ODBC Driver 18 for SQL Server;SERVER=tcp:XXXXXXXX....]
[ODBC][26][1715065291.385323][SQLGetFunctions.c][151]
Entry:
Connection = 0xaaaae2576180
Id = SQLMoreResults
Supported = 0xaaaabc910014
[ODBC][26][1715065291.385332][SQLGetFunctions.c][209]
Exit:[SQL_SUCCESS]
Supported = 0xaaaabc910014 -> 1
pyodbc
# cat odbctrace.log
[ODBC][36][1715065803.747851][__handles.c][499]
Exit:[SQL_SUCCESS]
Environment = 0xaaab01c42a00
[ODBC][36][1715065803.747898][SQLSetEnvAttr.c][189]
Entry:
Environment = 0xaaab01c42a00
Attribute = SQL_ATTR_ODBC_VERSION
Value = 0x3
StrLen = 4
[ODBC][36][1715065803.747906][SQLSetEnvAttr.c][381]
Exit:[SQL_SUCCESS]
[ODBC][36][1715065803.748002][SQLDrivers.c][235]
Entry:
Environment = 0xaaab01c42a00
Direction = 2
[ODBC][36][1715065803.748034][SQLDrivers.c][510]
Exit:[SQL_SUCCESS]
[ODBC][36][1715065803.748041][SQLDrivers.c][235]
Entry:
Environment = 0xaaab01c42a00
Direction = 1
[ODBC][36][1715065803.748054][SQLDrivers.c][510]
Exit:[SQL_NO_DATA]
[ODBC][36][1715065803.748086][SQLAllocHandle.c][395]
Entry:
Handle Type = 2
Input Handle = 0xaaab01c42a00
UNICODE Using encoding ASCII 'UTF-8' and UNICODE 'UCS-2LE'
[ODBC][36][1715065803.748116][SQLAllocHandle.c][531]
Exit:[SQL_SUCCESS]
Output Handle = 0xaaab01c45ea0
[ODBC][36][1715065803.749377][SQLDriverConnectW.c][298]
Entry:
Connection = 0xaaab01c45ea0
Window Hdl = (nil)
Str In = ["DRIVER={ODBC Driver 18 for SQL Server};SERVER=tcp:XXXXXXX,1433;DATABASE=XXXXXXX;UID=XXXXX...][length = 151 (SQL_NTS)]
Str Out = (nil)
Str Out Max = 0
Str Out Ptr = (nil)
Completion = 0
[ODBC][36][1715065803.749392][SQLDriverConnectW.c][658]Error: IM002
[ODBC][36][1715065803.749427][SQLGetDiagRecW.c][535]
Entry:
Connection = 0xaaab01c45ea0
Rec Number = 1
SQLState = 0xffffda46b660
Native = 0xffffda46b63c
Message Text = 0xaaab01c585e0
Buffer Length = 1023
Text Len Ptr = 0xffffda46b63a
[ODBC][36][1715065803.749439][SQLGetDiagRecW.c][596]
Exit:[SQL_SUCCESS]
SQLState = [IM002]
Native = 0xffffda46b63c -> 0 (32 bits)
Message Text = [[unixODBC][Driver Manager]Data source name not found and no default driver specified]
[ODBC][36][1715065803.749451][SQLFreeHandle.c][290]
Entry:
Handle Type = 2
Input Handle = 0xaaab01c45ea0
[ODBC][36][1715065803.749458][SQLFreeHandle.c][339]
Exit:[SQL_SUCCESS]
Some notable differences are the length of the connection string does seem to differ for some reason (which it shouldn't).
Notably, the connection string seems to be enclosed with []. I have printed the connection string the row prior to connecting, such as:
print(config["db_connection_string"])
self.conn = pyodbc.connect(config["db_connection_string"])The connection string is then printed in the expected format without the [].
Could this be it?
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AlexVialaBellander
commented on June 30, 2024
I sincerely apologise for the oversight on my part. It was a foolish error that I should not have missed. Thank you for your patience and support 🙏🏽
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