Cvi sql toolkit

Question

Hi
we are using CVI 2012 and the latest sql toolkit. We want to find and update data in a mysql database. But we have the problem that we always get an error message.
Here is our code:
    // initialisiert das SQL-Toolkit
    DBInit(DB_INIT_MULTITHREADED);
    DBInit(DB_INIT_SINGLETHREADED);
    sprintf(String, "DSN=SYSTEM_DATABASE; Server=127.0.0.1; Database=backup_demo8; UID=root; PWD=admin");
    hdbc = DBConnect(String);
    hmap = DBBeginMap(hdbc);
    rw = DBMapColumnToInt (hmap, "speed", &iSpeed, &iSpeedState);
    rw = DBMapColumnToChar(hmap, "datetime", 32, cDateTime, &cDateTimeStat, "");
    // Activate the map
    hstmt = DBActivateMap(hmap, "plots");
    // Find the record we want to update
    while((rw = DBFetchNext(hstmt)) == DB_SUCCESS)
        if(StrICmpWithoutSurrWhiteSpace(cDateTime, "05:37") == 0)
        break;
    iSpeed = 10;
    // Insert the record into the database
    rw = DBPutRecord(hstmt);
    rw = DBDeactivateMap(hmap);
    rw = DBDisconnect(hdbc);
When we call the DBPutRecord cmd we get the attached error message
Does anyone can help us?
thanks in advance
best regards
Oliver
Solved!
Go to Solution.
Attachments:
Errormessage.JPG ‏50 KB

Answer 1

Hi,
I found a solution meanwhile:
The map functions seem to be the problem.In a google research I found some remarks about similar problems.
By using the "normal" Activate SQL functions it is running.
Here is my solution:
    // initialisiert das SQL-Toolkit
    DBInit(DB_INIT_MULTITHREADED);
    DBInit(DB_INIT_SINGLETHREADED);
    sprintf(String, "DSN=SYSTEM_DATABASE; Server=127.0.0.1; Database=database_l01; UID=root; PWD=admin");
    hdbc = DBConnect(String);
    hsql = DBActivateSQL(hdbc, "SELECT * FROM `data_l01`");
    rw = DBBindColChar(hsql, SQL_TIME, 32, cTime, &cTimeStat, "");
    rw = DBBindColInt (hsql, SQL_SPEED, &iSpeed, &iSpeedState);
    // Find the record we want to update
    while((rw = DBFetchNext(hsql)) == DB_SUCCESS)
        if(StrICmpWithoutSurrWhiteSpace(cTime, "05:34") == 0)
        break;
    iSpeed = 15;
    // Insert the record into the database
    rw = DBPutRecord(hsql);
    rw = DBDeactivateSQL(hsql);
    rw = DBDisconnect(hdbc);
Thanks and kudos to me :-D
Oliver