Question

我有一个存储过程，当我从MSSQL Server GUI调用时。它正确返回结果。但是当我从我的C ++代码调用相同的过程时，它执行正确但不给出输出参数结果。我尝试了存储过程简单地返回输出，而没有做任何其它成功但是下面给出的存储过程失败。我认为在执行存储过程时发生了一些错误。继承我的存储过程：

IF EXISTS (SELECT name FROM sysobjects 
     WHERE name = 'putFileinFTandJT' AND type = 'P')
DROP PROCEDURE putFileinFTandJT
GO
CREATE PROCEDURE putFileinFTandJT
/* Put incoming file in File Table & Job Table */

/* IN */ @input varchar(max), 
/* IN */ @flName varchar(max), 
/* IN */ @uid INT, 
/* IN */ @jbid INT,
/* OUT */@t INT  OUTPUT,
/* OUT */@t1 INT OUTPUT

AS
DECLARE @orgFileID INT = -1;
DECLARE @temp1 INT;
DECLARE @newFileID INT;
DECLARE @versionCnt INT = 0;

/* SET  autocommit = 0; */
EXEC getDirId @input,@temp1 OUTPUT ;
if @temp1 = -1 
    EXEC putDir @uid,@input,@temp1 OUTPUT;

select @orgFileID = FileID   from FileTable where DirID=@temp1 and FileName=@flName and VersionNumber = 0;
IF  @orgFileID = -1 
BEGIN
    set @orgFileID = 0;
    insert into FileTable(FileName,DirID,IsDirectory,UserID,VersionNumber,isduplicate) values(@flName,@temp1,0,@uid,0,0);
END 
ELSE
BEGIN
    select @versionCnt = count(*)   from VersionTable where FileID = @orgFileID;
    insert into FileTable(FileName,DirID,IsDirectory,UserID,VersionNumber,isduplicate) values(@flName,@temp1,0,@uid,@versionCnt + 1,0);
    SET @versionCnt = @versionCnt + 1;
END
select @newFileID = FileID   from FileTable where FileName = @flName and DirID = @temp1 and VersionNumber = @versionCnt;
insert into JobTable values(@jbid,@newFileID);
commit;
set @t = @newFileID;
set @t1 = @orgFileID;

GO

//编辑这是cpp代码

HWND desktopHandle = GetDesktopWindow(); 
SQLCHAR buff[255]={0};
int intval1=0,intval2=0,intval3 = 0,intval4,intval5;
     retcode = SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &henv);
     retcode = SQLSetEnvAttr(henv, SQL_ATTR_ODBC_VERSION,                     (SQLPOINTER*)SQL_OV_ODBC3,    0); 

     retcode = SQLAllocHandle(SQL_HANDLE_DBC, henv, &hdbc); 
      retcode = SQLSetConnectAttr(hdbc, SQL_LOGIN_TIMEOUT, (SQLPOINTER)5, 0);

     retcode = SQLDriverConnect(hdbc, desktopHandle, (SQLWCHAR*) L"Driver={SQL Server};Server=WIN-E9EO4VT0V8I;Database=connector;UID=sa;PWD=spsoft_123;Trusted_Connection=False;", SQL_NTS, NULL, 0, NULL, 0);
    retcode = SQLAllocHandle(SQL_HANDLE_STMT, hdbc, &hstmt);



   retcode = SQLPrepare(hstmt, (SQLWCHAR*)L"{call putFileinFTandJT(?,?,?,?,?,?,?)}" , SQL_NTS);


   retcode = SQLBindParameter(hstmt, 1, SQL_PARAM_INPUT, SQL_C_CHAR, SQL_VARCHAR, 100, 0, szQuote, 0, &cbValue2);
    retcode = SQLBindParameter(hstmt, 2, SQL_PARAM_INPUT, SQL_C_CHAR, SQL_VARCHAR, 50, 0, szQuote2, 0, &cbValue2);
retcode = SQLBindParameter(hstmt, 3, SQL_PARAM_INPUT, SQL_C_SLONG, SQL_INTEGER, 0, 0, &iuser , 0, &cbValue5);
retcode = SQLBindParameter(hstmt, 4, SQL_PARAM_INPUT, SQL_C_SLONG , SQL_INTEGER, 0, 0, &ibackup  , 0, &cbValue5);

retcode = SQLBindParameter(hstmt, 5, SQL_PARAM_OUTPUT, SQL_C_SLONG, SQL_INTEGER, 0, 0, &intval1, 0, &cbValue6);
retcode = SQLBindParameter(hstmt, 6, SQL_PARAM_OUTPUT, SQL_C_SLONG , SQL_INTEGER, 0, 0, &intval2, 0, &cbValue7);
retcode = SQLBindParameter(hstmt, 7, SQL_PARAM_OUTPUT, SQL_C_SLONG , SQL_INTEGER, 0, 0, &intval3, 0, &cbValue8);
retcode = SQLExecute(hstmt);
if(retcode==SQL_ERROR)
{
    SQLWCHAR sqlstate[1024];
SQLWCHAR message[1024];
if(SQL_SUCCESS == SQLGetDiagRec(SQL_HANDLE_STMT, hstmt, 1, sqlstate, NULL, message, 1024, NULL))
    std::cout<<"Message: "<<(wchar_t*)message<<"\nSQLSTATE: "<<sqlstate<<std::endl;
}

请帮忙，因为我没有得到任何想法。感谢

Answer 1

结果中是否还有其他结果计数？我不确定你正在使用哪个API，但是根据我的经验从SP调用中获取输出参数通常意味着遍历结果返回跳过最终RPC结果的结果计数。（您也可以尝试将set nocount on放入SP中。

MSSQL服务器存储过程从c ++调用时不返回输出参数

1 个答案: