我会从你的问题和答案中学到很多东西。
但现在我迷失了
正如你在标题上看到的，我玩Ubuntu 12.04 LTS 64 + unixODBC 2.3.1 + Informix clientsdk 4.10 + node.js v0.10.20 ....
在我尝试使用unixODBC和Informix驱动程序连接node.js环境之前，每件事情都是正确的。
我对SQLServer没有任何问题。所以节点没问题，unixODBC也可以，SQLServer Driver也可以。 Informix Driver看起来也是对的，但是。
我可以$ isql -v MYDSN和查询数据库。
但是当节点App尝试连接崩溃时。
DSN非常简单，isql可以播放：
/usr/local/etc/odbc.ini
[NIFX]
Driver=/opt/IBM/informix/lib/cli/iclit09b.so
Server=explotacion
LogonID=informix
pwd=enterpass
Database=data
并且播放宽度isql看起来很好
$ isql NIFX
+---------------------------------------+
| Connected! |
| |
| sql-statement |
| help [tablename] |
| quit |
| |
+---------------------------------------+
SQL> SELECT COUNT(*) FROM PACIENTES
+------------------+
| |
+------------------+
| 414396 |
+------------------+
SQLRowCount returns -1
1 rows fetched
SQL>
my testifx.js for node look
var Database = require("odbc").Database,
db = new Database(),
cn="DSN=NIFX"
db.open(cn, function (err) {
if (err) return console.log(err);
db.query('SELECT COUNT(*) FROM PACIENTES', [], function (err, data) {
if (err) console.log(err);
console.log(data);
db.close(function () {
console.log('done');
});
});
});
结果......
$ node testifx
{ error: '[node-odbc] SQL_ERROR',
message: '[unixODBC][',
state: '0' }
$
任何人都可以帮助我。
odbc.ini的宽度有多大，或者可能会在连接字符串中加入其他参数（我在google空间找到所有托盘）
非常感谢。
谢谢迈克尔 抱歉，长日志。
我做了你说的话。 首先将日志跟踪到文件设置odbcinst.ini中的适当环境
[ODBC]
TraceFile = /home/srlopez/Dev/unixODBC.log
Trace = Yes
其次，运行 isql -v NIFX ，并播放单个命令 SELECT COUNT（*）FROM FSIGBLO 。 我只是按名称指示DSN。
完成正确，跟踪是：
[ODBC][7151][1380810414.400667][__handles.c][460]
Exit:[SQL_SUCCESS]
Environment = 0x63c750
[ODBC][7151][1380810414.400743][SQLAllocHandle.c][375]
Entry:
Handle Type = 2
Input Handle = 0x63c750
[ODBC][7151][1380810414.400773][SQLAllocHandle.c][493]
Exit:[SQL_SUCCESS]
Output Handle = 0x63d070
[ODBC][7151][1380810414.400803][SQLConnect.c][3700]
Entry:
Connection = 0x63d070
Server Name = [NIFX][length = 4 (SQL_NTS)]
User Name = [NULL]
Authentication = [NULL]
UNICODE Using encoding ASCII 'UTF8' and UNICODE 'UTF16LE'
[ODBC][7151][1380810414.803879][SQLConnect.c][4273]
Exit:[SQL_SUCCESS]
[ODBC][7151][1380810414.810623][SQLGetFunctions.c][151]
Entry:
Connection = 0x63d070
Id = SQLMoreResults
Supported = 0x6061d8
[ODBC][7151][1380810414.810759][SQLGetFunctions.c][186]
Exit:[SQL_SUCCESS]
Supported = 0x6061d8 -> 1
[ODBC][7151][1380810428.644512][SQLAllocHandle.c][540]
Entry:
Handle Type = 3
Input Handle = 0x63d070
[ODBC][7151][1380810428.644621][SQLAllocHandle.c][1081]
Exit:[SQL_SUCCESS]
Output Handle = 0x6b7aa0
[ODBC][7151][1380810428.644661][SQLPrepare.c][196]
Entry:
Statement = 0x6b7aa0
SQL = [SELECT COUNT(*) FROM FSIGBLO ][length = 29]
[ODBC][7151][1380810428.646046][SQLPrepare.c][371]
Exit:[SQL_SUCCESS]
[ODBC][7151][1380810428.646087][SQLExecute.c][187]
Entry:
Statement = 0x6b7aa0
[ODBC][7151][1380810428.646913][SQLExecute.c][348]
Exit:[SQL_SUCCESS]
[ODBC][7151][1380810428.646949][SQLNumResultCols.c][156]
Entry:
Statement = 0x6b7aa0
Column Count = 0x7fffc7b20e8e
[ODBC][7151][1380810428.646984][SQLNumResultCols.c][248]
Exit:[SQL_SUCCESS]
Count = 0x7fffc7b20e8e -> 1
[ODBC][7151][1380810428.647030][SQLNumResultCols.c][156]
Entry:
Statement = 0x6b7aa0
Column Count = 0x7fffc7b20bae
[ODBC][7151][1380810428.647057][SQLNumResultCols.c][248]
Exit:[SQL_SUCCESS]
Count = 0x7fffc7b20bae -> 1
[ODBC][7151][1380810428.647090][SQLColAttribute.c][293]
Entry:
Statement = 0x6b7aa0
Column Number = 1
Field Identifier = SQL_DESC_DISPLAY_SIZE
Character Attr = (nil)
Buffer Length = 0
String Length = (nil)
Numeric Attribute = 0x7fffc7b20a08
[ODBC][7151][1380810428.647129][SQLColAttribute.c][664]
Exit:[SQL_SUCCESS]
[ODBC][7151][1380810428.647156][SQLColAttribute.c][293]
Entry:
Statement = 0x6b7aa0
Column Number = 1
Field Identifier = SQL_DESC_LABEL
Character Attr = 0x7fffc7b20a10
Buffer Length = 301
String Length = (nil)
Numeric Attribute = (nil)
[ODBC][7151][1380810428.647192][SQLColAttribute.c][664]
Exit:[SQL_SUCCESS]
[ODBC][7151][1380810428.647218][SQLColAttribute.c][293]
Entry:
Statement = 0x6b7aa0
Column Number = 1
Field Identifier = SQL_DESC_LABEL
Character Attr = 0x7fffc7b20cf0
Buffer Length = 301
String Length = (nil)
Numeric Attribute = (nil)
[ODBC][7151][1380810428.647244][SQLColAttribute.c][664]
Exit:[SQL_SUCCESS]
[ODBC][7151][1380810428.647295][SQLNumResultCols.c][156]
Entry:
Statement = 0x6b7aa0
Column Count = 0x7fffc7b20bbe
[ODBC][7151][1380810428.647322][SQLNumResultCols.c][248]
Exit:[SQL_SUCCESS]
Count = 0x7fffc7b20bbe -> 1
[ODBC][7151][1380810428.647347][SQLFetch.c][162]
Entry:
Statement = 0x6b7aa0
[ODBC][7151][1380810428.648100][SQLFetch.c][348]
Exit:[SQL_SUCCESS]
[ODBC][7151][1380810428.648137][SQLColAttribute.c][293]
Entry:
Statement = 0x6b7aa0
Column Number = 1
Field Identifier = SQL_DESC_DISPLAY_SIZE
Character Attr = (nil)
Buffer Length = 0
String Length = (nil)
Numeric Attribute = 0x7fffc7b20a28
[ODBC][7151][1380810428.648164][SQLColAttribute.c][664]
Exit:[SQL_SUCCESS]
[ODBC][7151][1380810428.648189][SQLColAttribute.c][293]
Entry:
Statement = 0x6b7aa0
Column Number = 1
Field Identifier = SQL_DESC_LABEL
Character Attr = 0x7fffc7b20a30
Buffer Length = 301
String Length = (nil)
Numeric Attribute = (nil)
[ODBC][7151][1380810428.648218][SQLColAttribute.c][664]
Exit:[SQL_SUCCESS]
[ODBC][7151][1380810428.648254][SQLGetData.c][237]
Entry:
Statement = 0x6b7aa0
Column Number = 1
Target Type = 1 SQL_CHAR
Buffer Length = 301
Target Value = 0x7fffc7b20d00
StrLen Or Ind = 0x7fffc7b20bb0
[ODBC][7151][1380810428.648358][SQLGetData.c][501]
Exit:[SQL_SUCCESS]
Buffer = [2]
Strlen Or Ind = 0x7fffc7b20bb0 -> 1
[ODBC][7151][1380810428.648453][SQLFetch.c][162]
Entry:
Statement = 0x6b7aa0
[ODBC][7151][1380810428.648485][SQLFetch.c][348]
Exit:[SQL_NO_DATA]
[ODBC][7151][1380810428.677380][SQLRowCount.c][173]
Entry:
Statement = 0x6b7aa0
Row Count = 0x7fffc7b20e48
[ODBC][7151][1380810428.677455][SQLRowCount.c][244]
Exit:[SQL_SUCCESS]
Row Count = 0x7fffc7b20e48 -> -1
[ODBC][7151][1380810428.677539][SQLMoreResults.c][162]
Entry:
Statement = 0x6b7aa0
[ODBC][7151][1380810428.678583][SQLMoreResults.c][317]
Exit:[SQL_NO_DATA]
[ODBC][7151][1380810428.678630][SQLFreeStmt.c][144]
Entry:
Statement = 0x6b7aa0
Option = 1
[ODBC][7151][1380810428.678661][SQLFreeHandle.c][381]
Entry:
Handle Type = 3
Input Handle = 0x6b7aa0
[ODBC][7151][1380810428.679476][SQLFreeHandle.c][491]
Exit:[SQL_SUCCESS]
[ODBC][7151][1380810430.715614][SQLDisconnect.c][208]
Entry:
Connection = 0x63d070
[ODBC][7151][1380810430.719032][SQLDisconnect.c][364]
Exit:[SQL_SUCCESS]
[ODBC][7151][1380810430.719070][SQLFreeHandle.c][284]
Entry:
Handle Type = 2
Input Handle = 0x63d070
[ODBC][7151][1380810430.719093][SQLFreeHandle.c][333]
Exit:[SQL_SUCCESS]
[ODBC][7151][1380810430.719116][SQLFreeHandle.c][219]
Entry:
Handle Type = 1
Input Handle = 0x63c750
然后运行节点test.js，此连接字符串cn ='NIFX' 将odbc.ini上的相同信息传递给环境isql和node。 跟踪是
[ODBC][7171][1380810558.770556][__handles.c][460]
Exit:[SQL_SUCCESS]
Environment = 0x1438f10
[ODBC][7171][1380810558.770647][SQLSetEnvAttr.c][189]
Entry:
Environment = 0x1438f10
Attribute = SQL_ATTR_ODBC_VERSION
Value = 0x3
StrLen = -5
[ODBC][7171][1380810558.770677][SQLSetEnvAttr.c][363]
Exit:[SQL_SUCCESS]
[ODBC][7171][1380810558.781819][SQLAllocHandle.c][375]
Entry:
Handle Type = 2
Input Handle = 0x1438f10
[ODBC][7171][1380810558.782068][SQLAllocHandle.c][493]
Exit:[SQL_SUCCESS]
Output Handle = 0x7fc6000008c0
[ODBC][7171][1380810558.782802][SQLSetConnectAttrW.c][332]
Entry:
Connection = 0x7fc6000008c0
Attribute = SQL_ATTR_LOGIN_TIMEOUT
Value = 0x7fc607ffee4c
StrLen = 4
[ODBC][7171][1380810558.782922][SQLSetConnectAttrW.c][616]
Exit:[SQL_SUCCESS]
[ODBC][7171][1380810558.782968][SQLDriverConnectW.c][290]
Entry:
Connection = 0x7fc6000008c0
Window Hdl = (nil)
Str In = [DSN=NIFX][length = 9]
Str Out = (nil)
Str Out Max = 0
Str Out Ptr = (nil)
Completion = 0
UNICODE Using encoding ASCII 'UTF8' and UNICODE 'UTF16LE'
**[ODBC][7171][1380810558.787449][SQLDriverConnectW.c][699]
Exit:[SQL_ERROR]**
[ODBC][7171][1380810558.787689][SQLGetDiagFieldW.c][792]
Entry:
Connection = 0x7fc6000008c0
Rec Number = 1
Diag Ident = 2
Diag Info Ptr = 0x7fffdc53aca8
Buffer Length = -6
String Len Ptr = 0x7fffdc53acae
[ODBC][7171][1380810558.787802][SQLGetDiagFieldW.c][812]
Exit:[SQL_SUCCESS]
[ODBC][7171][1380810558.787839][SQLGetDiagRecW.c][508]
Entry:
Connection = 0x7fc6000008c0
Rec Number = 1
SQLState = 0x7fffdc53aeb0
Native = 0x7fffdc53aca4
Message Text = 0x7fffdc53acb0
Buffer Length = 512
Text Len Ptr = 0x7fffdc53acae
[ODBC][7171][1380810558.787873][SQLGetDiagRecW.c][550]
Exit:[SQL_SUCCESS]
SQLState = H
Native = 0x7fffdc53aca4 -> -11060
Message Text = [[unixODBC][]
[ODBC][7171][1380810558.788053][SQLGetDiagRecW.c][508]
Entry:
Connection = 0x7fc6000008c0
Rec Number = 2
SQLState = 0x7fffdc53aeb0
Native = 0x7fffdc53aca4
Message Text = 0x7fffdc53acb0
Buffer Length = 512
Text Len Ptr = 0x7fffdc53acae
[ODBC][7171][1380810558.788174][SQLGetDiagRecW.c][550]
Exit:[SQL_SUCCESS]
SQLState = 0
Native = 0x7fffdc53aca4 -> -11005
Message Text = [[unixODBC][]
这些是我的结论。 使用unixODBC调用不同函数的节点。 isql 调用 SQLConnect.c 和节点调用 SQLDriverConnectW.c ，如下所示：
NODE 只是函数调用，直到连接
[ODBC][7171][1380810558.770556][__handles.c][460]
[ODBC][7171][1380810558.770647][SQLSetEnvAttr.c][189]
[ODBC][7171][1380810558.770677][SQLSetEnvAttr.c][363]
[ODBC][7171][1380810558.781819][SQLAllocHandle.c][375]
[ODBC][7171][1380810558.782068][SQLAllocHandle.c][493]
[ODBC][7171][1380810558.782802][SQLSetConnectAttrW.c][332]
[ODBC][7171][1380810558.782922][SQLSetConnectAttrW.c][616]
[ODBC][7171][1380810558.782968][SQLDriverConnectW.c][290]
Entry:
Connection = 0x7fc6000008c0
Window Hdl = (nil)
Str In = [DSN=NIFX][length = 9]
Str Out = (nil)
Str Out Max = 0
Str Out Ptr = (nil)
Completion = 0
UNICODE Using encoding ASCII 'UTF8' and UNICODE 'UTF16LE'
[ODBC][7171][1380810558.787449][SQLDriverConnectW.c][699]
Exit:[SQL_ERROR]
isql 只是函数调用，直到连接
[ODBC][7151][1380810414.400667][__handles.c][460]
[ODBC][7151][1380810414.400743][SQLAllocHandle.c][375]
[ODBC][7151][1380810414.400773][SQLAllocHandle.c][493]
[ODBC][7151][1380810414.400803][SQLConnect.c][3700]
Entry:
Connection = 0x63d070
Server Name = [NIFX][length = 4 (SQL_NTS)]
User Name = [NULL]
Authentication = [NULL]
UNICODE Using encoding ASCII 'UTF8' and UNICODE 'UTF16LE'
**[ODBC][7151][1380810414.803879][SQLConnect.c][4273]
Exit:[SQL_SUCCESS]**
如何解决这个问题？ 再次感谢。
桑蒂
答案 0 :(得分：0)
您可以启用ODBC呼叫跟踪。首先运行isql以获取有效呼叫的日志。然后对node.js执行相同的操作。比较它们应该会告诉你问题在哪里。
关于如何在Linux上启用Informix的ODBC跟踪，我有一个问题和答案：Tracing ODBC calls for Informix Client for Linux
修改
从日志中node.js似乎使用SQLDriverConnectW()以错误结尾：-11005。 Informix显示错误将此描述为“无效的连接字符串属性。”。
您可以使用与isql相同的连接字符串：
cn="NIFX"
如果它不起作用，你应该添加用户名/密码：
cn="Dsn=NIFX;Uid=myUsername;Pwd=myPassword;"
在Python中，我经常在表单中使用它：
dsn/user/password
您还可以尝试添加连接字符串更多信息，如下所示：http://www.connectionstrings.com/informix