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O aplicativo de exemplo ODBC C/C++ acessa um banco de dados SQL

Aplica-se a: SQL Server Banco de Dados SQL do Azure

Esse aplicativo de exemplo C/C++ demonstra como usar as APIs ODBC para se conectar a um banco de dados SQL e acessá-lo.

Entre outubro de 2013 e julho de 2019, esse aplicativo de exemplo ODBC C++ foi baixado 47.300 vezes. Em julho de 2019, essa fonte de aplicativo foi movida da Galeria de Códigos da Microsoft para esta página da Web.

a. ReadMe.txt

Environment Where Tested
===============================
Visual Studio 2012
Win32
Windows Server 2012 R2
Windows 8.1


ODBC Sample
===============================
This sample demonstrates how to use ODBC APIs to Connect to and access database.


Sample Language Implementations
===============================
C++


Files:
=============================================
odbcsql.sln
odbcsql.vcxproj
odbcsql.cpp


To build the sample using the command prompt:
=============================================
     1. Open the Command Prompt window and navigate to the Odbcsql directory.
     2. Type msbuild odbcsql.sln.


To build the sample using Visual Studio (preferred method):
===========================================================
     1. Open File Explorer and navigate to the Odbcsql directory.
     2. Double-click the icon for the odbcsql.sln file to open the file in Visual Studio.
     3. In the Build menu, select Build Solution. The application will be built in the default \Debug or \Release directory.


To run the sample:
==================
     1. Navigate to the directory that contains the new executable, using the command prompt or File Explorer.
     2. Type Odbcsql.exe at the command line, or double-click the icon for Odbcsql.exe to launch it from File Explorer.
     3. Select the ODBC DSN to connect to. Follow the message of the sample application to input SQL query.

B. código odbcsql.cpp

/*******************************************************************************
/* ODBCSQL: a sample program that implements an ODBC command line interpreter.
/*
/* USAGE:   ODBCSQL DSN=<dsn name>   or
/*          ODBCSQL FILEDSN=<file dsn> or
/*          ODBCSQL DRIVER={driver name}
/*
/*
/* Copyright(c) Microsoft Corporation.   This is a WDAC sample program and
/* is not suitable for use in production environments.
/*
/******************************************************************************/
/* Modules: 
/*      Main                Main driver loop, executes queries.
/*      DisplayResults      Display the results of the query if any
/*      AllocateBindings    Bind column data
/*      DisplayTitles       Print column titles
/*      SetConsole          Set console display mode
/*      HandleError         Show ODBC error messages
/******************************************************************************/

#include <windows.h>
#include <sql.h>
#include <sqlext.h>
#include <stdio.h>
#include <conio.h>
#include <tchar.h>
#include <stdlib.h>
#include <sal.h>


/*******************************************/
/* Macro to call ODBC functions and        */
/* report an error on failure.             */
/* Takes handle, handle type, and stmt     */
/*******************************************/

#define TRYODBC(h, ht, x)   {   RETCODE rc = x;\
                                if (rc != SQL_SUCCESS) \
                                { \
                                    HandleDiagnosticRecord (h, ht, rc); \
                                } \
                                if (rc == SQL_ERROR) \
                                { \
                                    fwprintf(stderr, L"Error in " L#x L"\n"); \
                                    goto Exit;  \
                                }  \
                            }
/******************************************/
/* Structure to store information about   */
/* a column.
/******************************************/

typedef struct STR_BINDING {
    SQLSMALLINT         cDisplaySize;           /* size to display  */
    WCHAR               *wszBuffer;             /* display buffer   */
    SQLLEN              indPtr;                 /* size or null     */
    BOOL                fChar;                  /* character col?   */
    struct STR_BINDING  *sNext;                 /* linked list      */
} BINDING;



/******************************************/
/* Forward references                     */
/******************************************/

void HandleDiagnosticRecord (SQLHANDLE      hHandle,
                 SQLSMALLINT    hType,
                 RETCODE        RetCode);

void DisplayResults(HSTMT       hStmt,
                    SQLSMALLINT cCols);

void AllocateBindings(HSTMT         hStmt,
                      SQLSMALLINT   cCols,
                      BINDING**     ppBinding,
                      SQLSMALLINT*  pDisplay);


void DisplayTitles(HSTMT    hStmt,
                   DWORD    cDisplaySize,
                   BINDING* pBinding);

void SetConsole(DWORD   cDisplaySize,
                BOOL    fInvert);

/*****************************************/
/* Some constants                        */
/*****************************************/


#define DISPLAY_MAX 50          // Arbitrary limit on column width to display
#define DISPLAY_FORMAT_EXTRA 3  // Per column extra display bytes (| <data> )
#define DISPLAY_FORMAT      L"%c %*.*s "
#define DISPLAY_FORMAT_C    L"%c %-*.*s "
#define NULL_SIZE           6   // <NULL>
#define SQL_QUERY_SIZE      1000 // Max. Num characters for SQL Query passed in.

#define PIPE                L'|'

SHORT   gHeight = 80;       // Users screen height

int __cdecl wmain(int argc, _In_reads_(argc) WCHAR **argv)
{
    SQLHENV     hEnv = NULL;
    SQLHDBC     hDbc = NULL;
    SQLHSTMT    hStmt = NULL;
    WCHAR*      pwszConnStr;
    WCHAR       wszInput[SQL_QUERY_SIZE];

    // Allocate an environment

    if (SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &hEnv) == SQL_ERROR)
    {
        fwprintf(stderr, L"Unable to allocate an environment handle\n");
        exit(-1);
    }

    // Register this as an application that expects 3.x behavior,
    // you must register something if you use AllocHandle

    TRYODBC(hEnv,
            SQL_HANDLE_ENV,
            SQLSetEnvAttr(hEnv,
                SQL_ATTR_ODBC_VERSION,
                (SQLPOINTER)SQL_OV_ODBC3,
                0));

    // Allocate a connection
    TRYODBC(hEnv,
            SQL_HANDLE_ENV,
            SQLAllocHandle(SQL_HANDLE_DBC, hEnv, &hDbc));

    if (argc > 1)
    {
        pwszConnStr = *++argv;
    }
    else
    {
        pwszConnStr = L"";
    }

    // Connect to the driver.  Use the connection string if supplied
    // on the input, otherwise let the driver manager prompt for input.

    TRYODBC(hDbc,
        SQL_HANDLE_DBC,
        SQLDriverConnect(hDbc,
                         GetDesktopWindow(),
                         pwszConnStr,
                         SQL_NTS,
                         NULL,
                         0,
                         NULL,
                         SQL_DRIVER_COMPLETE));

    fwprintf(stderr, L"Connected!\n");

    TRYODBC(hDbc,
            SQL_HANDLE_DBC,
            SQLAllocHandle(SQL_HANDLE_STMT, hDbc, &hStmt));

    wprintf(L"Enter SQL commands, type (control)Z to exit\nSQL COMMAND>");

    // Loop to get input and execute queries

    while(_fgetts(wszInput, SQL_QUERY_SIZE-1, stdin))
    {
        RETCODE     RetCode;
        SQLSMALLINT sNumResults;

        // Execute the query

        if (!(*wszInput))
        {
            wprintf(L"SQL COMMAND>");
            continue;
        }
        RetCode = SQLExecDirect(hStmt,wszInput, SQL_NTS);

        switch(RetCode)
        {
        case SQL_SUCCESS_WITH_INFO:
            {
                HandleDiagnosticRecord(hStmt, SQL_HANDLE_STMT, RetCode);
                // fall through
            }
        case SQL_SUCCESS:
            {
                // If this is a row-returning query, display
                // results
                TRYODBC(hStmt,
                        SQL_HANDLE_STMT,
                        SQLNumResultCols(hStmt,&sNumResults));

                if (sNumResults > 0)
                {
                    DisplayResults(hStmt,sNumResults);
                }
                else
                {
                    SQLLEN cRowCount;

                    TRYODBC(hStmt,
                        SQL_HANDLE_STMT,
                        SQLRowCount(hStmt,&cRowCount));

                    if (cRowCount >= 0)
                    {
                        wprintf(L"%Id %s affected\n",
                                 cRowCount,
                                 cRowCount == 1 ? L"row" : L"rows");
                    }
                }
                break;
            }

        case SQL_ERROR:
            {
                HandleDiagnosticRecord(hStmt, SQL_HANDLE_STMT, RetCode);
                break;
            }

        default:
            fwprintf(stderr, L"Unexpected return code %hd!\n", RetCode);

        }
        TRYODBC(hStmt,
                SQL_HANDLE_STMT,
                SQLFreeStmt(hStmt, SQL_CLOSE));

        wprintf(L"SQL COMMAND>");
    }

Exit:

    // Free ODBC handles and exit

    if (hStmt)
    {
        SQLFreeHandle(SQL_HANDLE_STMT, hStmt);
    }

    if (hDbc)
    {
        SQLDisconnect(hDbc);
        SQLFreeHandle(SQL_HANDLE_DBC, hDbc);
    }

    if (hEnv)
    {
        SQLFreeHandle(SQL_HANDLE_ENV, hEnv);
    }

    wprintf(L"\nDisconnected.");

    return 0;

}

/************************************************************************
/* DisplayResults: display results of a select query
/*
/* Parameters:
/*      hStmt      ODBC statement handle
/*      cCols      Count of columns
/************************************************************************/

void DisplayResults(HSTMT       hStmt,
                    SQLSMALLINT cCols)
{
    BINDING         *pFirstBinding, *pThisBinding;
    SQLSMALLINT     cDisplaySize;
    RETCODE         RetCode = SQL_SUCCESS;
    int             iCount = 0;

    // Allocate memory for each column

    AllocateBindings(hStmt, cCols, &pFirstBinding, &cDisplaySize);

    // Set the display mode and write the titles

    DisplayTitles(hStmt, cDisplaySize+1, pFirstBinding);


    // Fetch and display the data

    bool fNoData = false;

    do {
        // Fetch a row

        if (iCount++ >= gHeight - 2)
        {
            int     nInputChar;
            bool    fEnterReceived = false;

            while(!fEnterReceived)
            {
                wprintf(L"              ");
                SetConsole(cDisplaySize+2, TRUE);
                wprintf(L"   Press ENTER to continue, Q to quit (height:%hd)", gHeight);
                SetConsole(cDisplaySize+2, FALSE);

                nInputChar = _getch();
                wprintf(L"\n");
                if ((nInputChar == 'Q') || (nInputChar == 'q'))
                {
                    goto Exit;
                }
                else if ('\r' == nInputChar)
                {
                    fEnterReceived = true;
                }
                // else loop back to display prompt again
            }

            iCount = 1;
            DisplayTitles(hStmt, cDisplaySize+1, pFirstBinding);
        }

        TRYODBC(hStmt, SQL_HANDLE_STMT, RetCode = SQLFetch(hStmt));

        if (RetCode == SQL_NO_DATA_FOUND)
        {
            fNoData = true;
        }
        else
        {

            // Display the data.   Ignore truncations

            for (pThisBinding = pFirstBinding;
                pThisBinding;
                pThisBinding = pThisBinding->sNext)
            {
                if (pThisBinding->indPtr != SQL_NULL_DATA)
                {
                    wprintf(pThisBinding->fChar ? DISPLAY_FORMAT_C:DISPLAY_FORMAT,
                        PIPE,
                        pThisBinding->cDisplaySize,
                        pThisBinding->cDisplaySize,
                        pThisBinding->wszBuffer);
                }
                else
                {
                    wprintf(DISPLAY_FORMAT_C,
                        PIPE,
                        pThisBinding->cDisplaySize,
                        pThisBinding->cDisplaySize,
                        L"<NULL>");
                }
            }
            wprintf(L" %c\n",PIPE);
        }
    } while (!fNoData);

    SetConsole(cDisplaySize+2, TRUE);
    wprintf(L"%*.*s", cDisplaySize+2, cDisplaySize+2, L" ");
    SetConsole(cDisplaySize+2, FALSE);
    wprintf(L"\n");

Exit:
    // Clean up the allocated buffers

    while (pFirstBinding)
    {
        pThisBinding = pFirstBinding->sNext;
        free(pFirstBinding->wszBuffer);
        free(pFirstBinding);
        pFirstBinding = pThisBinding;
    }
}

/************************************************************************
/* AllocateBindings:  Get column information and allocate bindings
/* for each column.
/*
/* Parameters:
/*      hStmt      Statement handle
/*      cCols       Number of columns in the result set
/*      *lppBinding Binding pointer (returned)
/*      lpDisplay   Display size of one line
/************************************************************************/

void AllocateBindings(HSTMT         hStmt,
                      SQLSMALLINT   cCols,
                      BINDING       **ppBinding,
                      SQLSMALLINT   *pDisplay)
{
    SQLSMALLINT     iCol;
    BINDING         *pThisBinding, *pLastBinding = NULL;
    SQLLEN          cchDisplay, ssType;
    SQLSMALLINT     cchColumnNameLength;

    *pDisplay = 0;

    for (iCol = 1; iCol <= cCols; iCol++)
    {
        pThisBinding = (BINDING *)(malloc(sizeof(BINDING)));
        if (!(pThisBinding))
        {
            fwprintf(stderr, L"Out of memory!\n");
            exit(-100);
        }

        if (iCol == 1)
        {
            *ppBinding = pThisBinding;
        }
        else
        {
            pLastBinding->sNext = pThisBinding;
        }
        pLastBinding = pThisBinding;


        // Figure out the display length of the column (we will
        // bind to char since we are only displaying data, in general
        // you should bind to the appropriate C type if you are going
        // to manipulate data since it is much faster...)

        TRYODBC(hStmt,
                SQL_HANDLE_STMT,
                SQLColAttribute(hStmt,
                    iCol,
                    SQL_DESC_DISPLAY_SIZE,
                    NULL,
                    0,
                    NULL,
                    &cchDisplay));


        // Figure out if this is a character or numeric column; this is
        // used to determine if we want to display the data left- or right-
        // aligned.

        // SQL_DESC_CONCISE_TYPE maps to the 1.x SQL_COLUMN_TYPE.
        // This is what you must use if you want to work
        // against a 2.x driver.

        TRYODBC(hStmt,
                SQL_HANDLE_STMT,
                SQLColAttribute(hStmt,
                    iCol,
                    SQL_DESC_CONCISE_TYPE,
                    NULL,
                    0,
                    NULL,
                    &ssType));

        pThisBinding->fChar = (ssType == SQL_CHAR ||
                                ssType == SQL_VARCHAR ||
                                ssType == SQL_LONGVARCHAR);

        pThisBinding->sNext = NULL;

        // Arbitrary limit on display size
        if (cchDisplay > DISPLAY_MAX)
            cchDisplay = DISPLAY_MAX;

        // Allocate a buffer big enough to hold the text representation
        // of the data.  Add one character for the null terminator

        pThisBinding->wszBuffer = (WCHAR *)malloc((cchDisplay+1) * sizeof(WCHAR));

        if (!(pThisBinding->wszBuffer))
        {
            fwprintf(stderr, L"Out of memory!\n");
            exit(-100);
        }

        // Map this buffer to the driver's buffer.   At Fetch time,
        // the driver will fill in this data.  Note that the size is
        // count of bytes (for Unicode).  All ODBC functions that take
        // SQLPOINTER use count of bytes; all functions that take only
        // strings use count of characters.

        TRYODBC(hStmt,
                SQL_HANDLE_STMT,
                SQLBindCol(hStmt,
                    iCol,
                    SQL_C_TCHAR,
                    (SQLPOINTER) pThisBinding->wszBuffer,
                    (cchDisplay + 1) * sizeof(WCHAR),
                    &pThisBinding->indPtr));


        // Now set the display size that we will use to display
        // the data.   Figure out the length of the column name

        TRYODBC(hStmt,
                SQL_HANDLE_STMT,
                SQLColAttribute(hStmt,
                    iCol,
                    SQL_DESC_NAME,
                    NULL,
                    0,
                    &cchColumnNameLength,
                    NULL));

        pThisBinding->cDisplaySize = max((SQLSMALLINT)cchDisplay, cchColumnNameLength);
        if (pThisBinding->cDisplaySize < NULL_SIZE)
            pThisBinding->cDisplaySize = NULL_SIZE;

        *pDisplay += pThisBinding->cDisplaySize + DISPLAY_FORMAT_EXTRA;

    }

    return;

Exit:

    exit(-1);

    return;
}


/************************************************************************
/* DisplayTitles: print the titles of all the columns and set the
/*                shell window's width
/*
/* Parameters:
/*      hStmt          Statement handle
/*      cDisplaySize   Total display size
/*      pBinding        list of binding information
/************************************************************************/

void DisplayTitles(HSTMT     hStmt,
                   DWORD     cDisplaySize,
                   BINDING   *pBinding)
{
    WCHAR           wszTitle[DISPLAY_MAX];
    SQLSMALLINT     iCol = 1;

    SetConsole(cDisplaySize+2, TRUE);

    for (; pBinding; pBinding = pBinding->sNext)
    {
        TRYODBC(hStmt,
                SQL_HANDLE_STMT,
                SQLColAttribute(hStmt,
                    iCol++,
                    SQL_DESC_NAME,
                    wszTitle,
                    sizeof(wszTitle), // Note count of bytes!
                    NULL,
                    NULL));

        wprintf(DISPLAY_FORMAT_C,
                 PIPE,
                 pBinding->cDisplaySize,
                 pBinding->cDisplaySize,
                 wszTitle);
    }

Exit:

    wprintf(L" %c", PIPE);
    SetConsole(cDisplaySize+2, FALSE);
    wprintf(L"\n");

}


/************************************************************************
/* SetConsole: sets console display size and video mode
/*
/*  Parameters
/*      siDisplaySize   Console display size
/*      fInvert         Invert video?
/************************************************************************/

void SetConsole(DWORD dwDisplaySize,
                BOOL  fInvert)
{
    HANDLE                          hConsole;
    CONSOLE_SCREEN_BUFFER_INFO      csbInfo;

    // Reset the console screen buffer size if necessary

    hConsole = GetStdHandle(STD_OUTPUT_HANDLE);

    if (hConsole != INVALID_HANDLE_VALUE)
    {
        if (GetConsoleScreenBufferInfo(hConsole, &csbInfo))
        {
            if (csbInfo.dwSize.X <  (SHORT) dwDisplaySize)
            {
                csbInfo.dwSize.X =  (SHORT) dwDisplaySize;
                SetConsoleScreenBufferSize(hConsole, csbInfo.dwSize);
            }

            gHeight = csbInfo.dwSize.Y;
        }

        if (fInvert)
        {
            SetConsoleTextAttribute(hConsole, (WORD)(csbInfo.wAttributes | BACKGROUND_BLUE));
        }
        else
        {
            SetConsoleTextAttribute(hConsole, (WORD)(csbInfo.wAttributes & ~(BACKGROUND_BLUE)));
        }
    }
}


/************************************************************************
/* HandleDiagnosticRecord : display error/warning information
/*
/* Parameters:
/*      hHandle     ODBC handle
/*      hType       Type of handle (HANDLE_STMT, HANDLE_ENV, HANDLE_DBC)
/*      RetCode     Return code of failing command
/************************************************************************/

void HandleDiagnosticRecord (SQLHANDLE      hHandle,
                             SQLSMALLINT    hType,
                             RETCODE        RetCode)
{
    SQLSMALLINT iRec = 0;
    SQLINTEGER  iError;
    WCHAR       wszMessage[1000];
    WCHAR       wszState[SQL_SQLSTATE_SIZE+1];


    if (RetCode == SQL_INVALID_HANDLE)
    {
        fwprintf(stderr, L"Invalid handle!\n");
        return;
    }

    while (SQLGetDiagRec(hType,
                         hHandle,
                         ++iRec,
                         wszState,
                         &iError,
                         wszMessage,
                         (SQLSMALLINT)(sizeof(wszMessage) / sizeof(WCHAR)),
                         (SQLSMALLINT *)NULL) == SQL_SUCCESS)
    {
        // Hide data truncated..
        if (wcsncmp(wszState, L"01004", 5))
        {
            fwprintf(stderr, L"[%5.5s] %s (%d)\n", wszState, wszMessage, iError);
        }
    }
}

C. código odbcsql.sln

Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Version 16
VisualStudioVersion = 16.0.29230.47
MinimumVisualStudioVersion = 10.0.40219.1
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "odbcsql", "odbcsql.vcxproj", "{C5948D2C-C53D-4933-9AC5-48066AD6A560}"
EndProject
Global
  GlobalSection(SolutionConfigurationPlatforms) = preSolution
    Debug|x64 = Debug|x64
    Debug|x86 = Debug|x86
    Release|x64 = Release|x64
    Release|x86 = Release|x86
  EndGlobalSection
  GlobalSection(ProjectConfigurationPlatforms) = postSolution
    {C5948D2C-C53D-4933-9AC5-48066AD6A560}.Debug|x64.ActiveCfg = Debug|x64
    {C5948D2C-C53D-4933-9AC5-48066AD6A560}.Debug|x64.Build.0 = Debug|x64
    {C5948D2C-C53D-4933-9AC5-48066AD6A560}.Debug|x86.ActiveCfg = Debug|Win32
    {C5948D2C-C53D-4933-9AC5-48066AD6A560}.Debug|x86.Build.0 = Debug|Win32
    {C5948D2C-C53D-4933-9AC5-48066AD6A560}.Release|x64.ActiveCfg = Release|x64
    {C5948D2C-C53D-4933-9AC5-48066AD6A560}.Release|x64.Build.0 = Release|x64
    {C5948D2C-C53D-4933-9AC5-48066AD6A560}.Release|x86.ActiveCfg = Release|Win32
    {C5948D2C-C53D-4933-9AC5-48066AD6A560}.Release|x86.Build.0 = Release|Win32
  EndGlobalSection
  GlobalSection(SolutionProperties) = preSolution
    HideSolutionNode = FALSE
  EndGlobalSection
  GlobalSection(ExtensibilityGlobals) = postSolution
    SolutionGuid = {32894C74-C0AE-427F-969B-5F757A98EAFF}
  EndGlobalSection
EndGlobal

D. código odbcsql.vcxproj

<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <ItemGroup Label="ProjectConfigurations">
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      <Configuration>Debug</Configuration>
      <Platform>Win32</Platform>
    </ProjectConfiguration>
    <ProjectConfiguration Include="Debug|x64">
      <Configuration>Debug</Configuration>
      <Platform>x64</Platform>
    </ProjectConfiguration>
    <ProjectConfiguration Include="Release|Win32">
      <Configuration>Release</Configuration>
      <Platform>Win32</Platform>
    </ProjectConfiguration>
    <ProjectConfiguration Include="Release|x64">
      <Configuration>Release</Configuration>
      <Platform>x64</Platform>
    </ProjectConfiguration>
  </ItemGroup>
  <PropertyGroup Label="Globals">
    <VCTargetsPath Condition="'$(VCTargetsPath11)' != '' and '$(VSVersion)' == '' and '$(VisualStudioVersion)' == ''">$(VCTargetsPath11)</VCTargetsPath>
  </PropertyGroup>
  <PropertyGroup Label="Globals">
    <ProjectGuid>{C5948D2C-C53D-4933-9AC5-48066AD6A560}</ProjectGuid>
    <RootNamespace>odbcsql</RootNamespace>
    <Keyword>Win32Proj</Keyword>
    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
  </PropertyGroup>
  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
    <ConfigurationType>Application</ConfigurationType>
    <PlatformToolset>v142</PlatformToolset>
    <CharacterSet>Unicode</CharacterSet>
    <WholeProgramOptimization>true</WholeProgramOptimization>
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  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
    <ConfigurationType>Application</ConfigurationType>
    <PlatformToolset>v142</PlatformToolset>
    <CharacterSet>Unicode</CharacterSet>
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    <WholeProgramOptimization>true</WholeProgramOptimization>
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    <PlatformToolset>v142</PlatformToolset>
    <CharacterSet>Unicode</CharacterSet>
  </PropertyGroup>
  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
  <ImportGroup Label="ExtensionSettings">
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  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="PropertySheets">
    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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  <PropertyGroup Label="UserMacros" />
  <PropertyGroup>
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  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
    <OutDir>$(SolutionDir)$(Configuration)\</OutDir>
    <IntDir>$(Configuration)\</IntDir>
    <LinkIncremental>true</LinkIncremental>
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  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
    <OutDir>$(SolutionDir)$(Platform)\$(Configuration)\</OutDir>
    <IntDir>$(Platform)\$(Configuration)\</IntDir>
    <LinkIncremental>true</LinkIncremental>
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  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
    <OutDir>$(SolutionDir)$(Configuration)\</OutDir>
    <IntDir>$(Configuration)\</IntDir>
    <LinkIncremental>false</LinkIncremental>
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  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
    <OutDir>$(SolutionDir)$(Platform)\$(Configuration)\</OutDir>
    <IntDir>$(Platform)\$(Configuration)\</IntDir>
    <LinkIncremental>false</LinkIncremental>
  </PropertyGroup>
  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
    <ClCompile>
      <Optimization>Disabled</Optimization>
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Confira também

Baixar driver ODBC