TeslaRel410/BORLAND/BDE/EXAMPLES/SNIPIT/UPSIZE.C

// BDE - (C) Copyright 1995 by Borland International

// Upsize.C
#include "snipit.h"

static const char szUPTblName[] = "customer";
static const char szUPTblType[] = szPARADOX;
static const char szSVTblName[] = "SrvrCustomer";

//=====================================================================
//  Function:
//          UpSize();
//
//  Description:
//          This example shows how to copy a local table to an SQL server.
//          This is done using the DbiBatchMove function.
//
//          The example will request that the user supply a server name
//          and password, and will then proceed to copy the "Customer"
//          Paradox table (and its primary index) to the table.
//
//  WARNING:
//          You must have write access to your server in order for this
//          example to work.
//=====================================================================
void
UpSize (void)
{
    hDBIDb      hDb;                // Handle to the server database
    hDBICur     hCur;               // Server cursor handle
    hDBIDb      hDbPX;              // Handle to the Paradox database
    hDBICur     hCurPX;             // Paradox cursor handle
    DBIResult   rslt;               // Return value of a given function call.
    UINT16      iLen;               // Length of the returned property
    CURProps    TblProps;           // Table properties
    pIDXDesc    pIdxDesc = NULL;    // Index pointer
    UINT16      i=0;                // Index counter
    CHAR        szIndex[DBIMAXNAMELEN]; // Temporary index name
    UINT16      iIndexNum = 1;      // Index number on the server table

    BATTblDesc  BatTblDesc = {
                            NULL,
                            "",
                            "",
                            { NULL },
                            { NULL }
                         };

    Screen("*** Copying a local table to an SQL Server ***\r\n");

    BREAK_IN_DEBUGGER();

    Screen("    Initializing IDAPI...");
    if (InitAndConnect2(&hDb) != DBIERR_NONE)
    {
        Screen("\r\n*** End of Example ***");
        return;
    }

    // Get the type of the server.
    rslt = DbiGetProp((hDBIObj)hDb, dbDATABASETYPE,
                      (pCHAR)BatTblDesc.szTblType, sizeof(DBINAME), &iLen);
    ChkRslt(rslt, "Get Prop");

    if (! strcmp(BatTblDesc.szTblType, "STANDARD"))
    {
        Screen("    This example only works on remote SQL databases");
        CloseDbAndExit(&hDb);
        Screen("\r\n*** End of Example ***");
        return;
    }

    // Open a standard database for the local table.
    rslt = DbiOpenDatabase(NULL, NULL, dbiREADWRITE, dbiOPENSHARED,
                           NULL, 0, NULL, NULL, &hDbPX);
    if (ChkRslt(rslt, "OpenDatabase") != DBIERR_NONE)
    {
        CloseDbAndExit(&hDb);
        Screen("\r\n*** End of Example ***");
        return;
    }

    Screen("    Setting the database directory for the standard database...");
    rslt = DbiSetDirectory(hDbPX, (pCHAR) szTblDirectory);
    ChkRslt(rslt, "SetDirectory");

    Screen("    Open the %s %s table which will be copied to the\r\n"
           "        %s server...", szUPTblName, szUPTblType,
           BatTblDesc.szTblType);

    rslt = DbiOpenTable(hDbPX, (pCHAR) szUPTblName, (pCHAR) szUPTblType,
                        NULL, NULL, 0, dbiREADWRITE, dbiOPENSHARED,
                        xltFIELD, FALSE, NULL, &hCurPX);
    if (ChkRslt(rslt, "OpenTable") != DBIERR_NONE)
    {
        DbiCloseDatabase(&hDbPX);
        CloseDbAndExit(&hDb);
        Screen("\r\n*** End of Example ***");
        return;
    }

    rslt = DbiSetToBegin(hCurPX);
    ChkRslt(rslt, "SetToBegin");

    Screen("\r\n    Copying the %s table to the server...",
           szUPTblName);

    BatTblDesc.hDb = hDb;
    strcpy(BatTblDesc.szTblName, (pCHAR)szSVTblName);
    
    rslt = DbiBatchMove(NULL, hCurPX, &BatTblDesc, NULL, batCOPY, NULL,
                        NULL, NULL, NULL, NULL, NULL, NULL,
                        NULL, NULL, NULL, NULL, TRUE, TRUE,
                        NULL, TRUE);
    if(ChkRslt(rslt, "Batch Move") != DBIERR_NONE)
    {
        rslt = DbiCloseCursor(&hCurPX);
        ChkRslt(rslt, "CloseCur");
        DbiCloseDatabase(&hDbPX);
        CloseDbAndExit(&hDb);
        Screen("\r\n*** End of Example ***");
        return;
    }

    Screen("    Open the %s %s table...", szSVTblName, BatTblDesc.szTblType);
    rslt = DbiOpenTable(hDb, (pCHAR) szSVTblName,
                        (pCHAR)BatTblDesc.szTblType, NULL, NULL, 0,
                        dbiREADWRITE, dbiOPENEXCL, xltFIELD, FALSE, NULL,
                        &hCur);             
    if (ChkRslt(rslt, "OpenTable") != DBIERR_NONE)
    {
        rslt = DbiDeleteTable(hDb,(pCHAR) szSVTblName,
                              (pCHAR)BatTblDesc.szTblType);
        ChkRslt(rslt, "DeleteTable");
        rslt = DbiCloseCursor(&hCurPX);
        ChkRslt(rslt, "CloseCur");
        DbiCloseDatabase(&hDbPX);
        CloseDbAndExit(&hDb);
        Screen("\r\n*** End of Example ***");
        return;
    }

    //  Allocate a buffer for the index descriptors.
    rslt = DbiGetCursorProps(hCurPX, &TblProps);
    ChkRslt(rslt, "GetCursorProps");

    pIdxDesc = (pIDXDesc)malloc(TblProps.iIndexes * sizeof(IDXDesc));
    if ((pIdxDesc == NULL) && (TblProps.iIndexes != 0))
    {
        rslt = DbiCloseCursor(&hCur);
        ChkRslt(rslt, "CloseCur");
        rslt = DbiDeleteTable(hDb,(pCHAR) szSVTblName,
                              (pCHAR)BatTblDesc.szTblType);
        ChkRslt(rslt, "DeleteTable");
        rslt = DbiCloseCursor(&hCurPX);
        ChkRslt(rslt, "CloseCur");
        DbiCloseDatabase(&hDbPX);
        CloseDbAndExit(&hDb);
        Screen("\r\n*** End of Example ***");
        return;
    }

    // Check if there are indexes on the table.
    if (TblProps.iIndexes != 0)
    {
        rslt = DbiGetIndexDescs(hCurPX, pIdxDesc);
        ChkRslt(rslt, "Get Index Descs");
    }

    Screen("    Add the Unique indexes found in the original table to "
           "the %s table...", szSVTblName);

    for ( i = 0; i < TblProps.iIndexes; i++)
    {
        // Only add the index if it is unique - such as a Paradox primary
        //   index or certain dBASE indexes.
        if (pIdxDesc[i].bUnique == TRUE)
        {
            // Initialize index descriptor.
            pIdxDesc[i].bPrimary = FALSE;
            pIdxDesc[i].bUnique = TRUE;
            pIdxDesc[i].bDescending = FALSE;
            pIdxDesc[i].bMaintained = TRUE;
            pIdxDesc[i].bSubset = FALSE;
            pIdxDesc[i].bExpIdx = FALSE;
            pIdxDesc[i].iBlockSize = 0;
            pIdxDesc[i].iRestrNum = 0;
            pIdxDesc[i].iIndexId = iIndexNum;
            strcpy(pIdxDesc[i].szTagName, "");
            memset(szIndex, 0, DBIMAXNAMELEN);
            wsprintf(szIndex, "Index%u",iIndexNum);
            strcpy(pIdxDesc[i].szName, szIndex);
            
            rslt = DbiAddIndex(hDb, hCur, (pCHAR)szSVTblName,
                               (pCHAR)BatTblDesc.szTblType, &pIdxDesc[i],
                               NULL);
            ChkRslt(rslt, "Add Index");
            iIndexNum++;
        }
    }

    memset(&TblProps, 0, sizeof(CURProps));
    rslt = DbiGetCursorProps(hCur, &TblProps);
    ChkRslt(rslt, "GetCursorProps");

    rslt = DbiSetToBegin(hCur);
    ChkRslt(rslt, "SetToBegin");

    Screen("\r\n    Displaying the first 10 records of the %s %s table...",
           szSVTblName, BatTblDesc.szTblType);
    DisplayTable(hCur, 10);

    Screen("\r\n    Close the %s table...", szUPTblName);
    rslt = DbiCloseCursor(&hCurPX);
    ChkRslt(rslt, "CloseCur");

    Screen("    Close the %s table...", szSVTblName);
    rslt = DbiCloseCursor(&hCur);
    ChkRslt(rslt, "CloseCur");

    Screen("    Delete the %s table...", szSVTblName);
    rslt = DbiDeleteTable(hDb,(pCHAR) szSVTblName,
                          (pCHAR)BatTblDesc.szTblType);
    ChkRslt(rslt, "DeleteTable");

    Screen("    Close the databases and exit IDAPI...");
    DbiCloseDatabase(&hDbPX);
    CloseDbAndExit(&hDb);

    free(pIdxDesc);

    Screen("\r\n*** End of Example ***");
}