ODBC Driver

CUBRID ODBC driver supports ODBC version 3.52. It also ODBC core and some parts of Level 1 and Level 2 API. Because CUBRID ODBC driver has been developed based on the ODBC Spec 3.x, backward compatibility is not completely ensured for programs written based on the ODBC Spec 2.x.

CUBRID ODBC driver is written based on CCI API, but it’s not affected by CCI_DEFAULT_AUTOCOMMIT exceptionally.

Note

ODBC is not affected by CCI_DEFAULT_AUTOCOMMIT is from 9.3 version. In the previous versions, you should set CCI_DEFAULT_AUTOCOMMIT as OFF.

Data Type Mapping Between CUBRID and ODBC

The following table shows the data type mapping relationship between CUBRID and ODBC.

CUBRID Data Type ODBC Data Type
CHAR SQL_CHAR
VARCHAR SQL_VARCHAR
STRING SQL_LONGVARCHAR
BIT SQL_BINARY
VARYING BIT SQL_VARBINARY
NUMERIC SQL_NUMERIC
INT SQL_INTEGER
SHORT SQL_SMALLINT
FLOAT SQL_FLOAT
DOUBLE SQL_DOUBLE
BIGINT SQL_BIGINT
DATE SQL_TYPE_DATE
TIME SQL_TYPE_TIME
TIMESTAMP SQL_TYPE_TIMESTAMP
DATETIME SQL_TYPE_TIMESTAMP
OID SQL_CHAR(32)
SET, MULTISET, SEQUENCE SQL_VARCHAR(MAX_STRING_LENGTH)

Configuring and Environment ODBC

Requirements

  • CUBRID 2008 R4.4 (8.4.4) or later (32-bit or 64-bit)

Configuring CUBRID ODBC Driver

CUBRID ODBC driver is automatically installed upon CUBRID installation. You can check whether it is properly installed in the [Control Panel] > [Administrative Tools] > [Data Source (ODBC)] > [Drivers] tab.

../_images/image77.png

Choosing 32-bit ODBC driver on 64-bit Windows

To run 32-bit application, 32-bit ODBC driver is required. If you have to choose 32-bit ODBC driver on 64-bit Windows, run C:WINDOWSSysWOW64odbcad32.exe .

Microsoft Windows 64-bit platform support the environment to run 32-bit application on 64-bit environment, which is called WOW64 (Windows-32-on-Windows-64). This environment maintains its own copy of the registry that is only for 32-bit applications.

Configuring DNS

After you check the CUBRID ODBC driver installed, configure DSN as a database where the applications are trying to connect. To configure, click the [Add] button in the ODBC Data Source Administrator dialog box. Then, the following dialog box will appear. Select “CUBRID Driver” and then click the [Finish] button.

../_images/image78.png

In the [Config CUBRID Data Sources] dialog box, enter information as follows:

../_images/image79.png
  • DSN : The name of a source data
  • DB Name : The name of a database to be connected
  • DB User : The name of a database user
  • Password : The password of a database user
  • Server Address : The host address of a database. The value should be either localhost or the IP address of other server.
  • Server Port : The number of a broker port. You can check the CUBRID broker port number in the cubrid_broker.conf file. The default value is 33,000. To verify the port number, check the BROKER_PORT value in the cubrid_broker.conf file or enter the cubrid service status in the command prompt. The result will be displayed as follows:
../_images/image80.png
  • FETCH_SIZE : A value configures the number of records fetched from server whenever the cci_fetch () function of CCI library (which CUBRID ODBC driver internally uses) is called.

After you filled out every field, click the [OK] button. You will notice that data source is added in the [User Data Sources] as shown below.

../_images/image81.png

Connecting to a Database Directly without DSN

It is also possible to connect to a CUBRID database directly in the application source code by using the connecting string. Below shows the example of connection string.

conn = "driver={CUBRID Driver};server=localhost;port=33000;uid=dba;pwd=;db_name=demodb;"

Note

Make sure that your database is running before you try to connect to a CUBRID database. Otherwise, you will receive an error indicating that ODBC call has failed. To start the database called demodb, enter cubrid server start demodb in the command prompt.

ODBC Programming

Configuring Connection String

When you are programming CUBRID ODBC, write the connection strings as follows:

Category Example Description
Driver CUBRID Driver Unicode Driver name
UID PUBLIC User ID
PWD xxx Password
FETCH_SIZE 100 Fetch size
PORT 33000 The broker port number
SERVER 127.0.0.1 The IP address or the host name of a CUBRID broker server
DB_NAME demodb Database name
DESCRIPTION cubrid_test Description
CHARSET utf-8 Character set

The following shows the result of using connection strings above.

"DRIVER={CUBRID Driver Unicode};UID=PUBLIC;PWD=xxx;FETCH_SIZE=100;PORT=33000;SERVER=127.0.0.1;DB_NAME=demodb;DESCRIPTION=cubrid_test;CHARSET=utf-8"

If you use UTF-8 unicode, install a driver for unicode and input the driver name in the connection string as “Driver={CUBRID Driver Unicode}”. Unicode is only supported in 9.3.0.0002 or higher version of CUBRID ODBC driver.

Note

  • Because a semi-colon (;) is used as a separator in URL string, it is not allowed to use a semi-colon as parts of a password (PWD) when specifying the password in connection strings.
  • The database connection in thread-based programming must be used independently each other.
  • In autocommit mode, the transaction is not committed if all results are not fetched after running the SELECT statement. Therefore, although in autocommit mode, you should end the transaction by executing COMMIT or ROLLBACK if some error occurs during fetching for the resultset.

ASP Sample Program

In the virtual directory where the ASP sample program runs, right-click “Default Web Site” and click [Properties].

../_images/image82.png

In the picture above, if you select (All Unassigned) from the [IP Address] dropdown list under [Web Site Identification], it is recognized as localhost. If you want to see the sample program through a specific IP address, make an IP address recognize a directory as a virtual directory and register the IP address in the registration information.

Create the below code as cubrid.asp and store it in a virtual directory.

<HTML>
    <HEAD>
     <meta http-equiv="Content-Type" content="text/html; charset=EUC-KR">
       <title>CUBRID Query Test Page</title>
  </HEAD>

 <BODY topmargin="0" leftmargin="0">

 <table border="0" width="748" cellspacing="0" cellpadding="0">
   <tr>
     <td width="200"></td>
     <td width="287">
       <p align="center"><font size="3" face="Times New Roman"><b><font color="#FF0000">CUBRID</font>Query Test</b></font></td>
     <td width="200"></td>
   </tr>
 </table>

 <form action="cubrid.asp" method="post" >
 <table border="1" width="700" cellspacing="0" cellpadding="0" height="45">
   <tr>
     <td width="113" valign="bottom" height="16" bgcolor="#DBD7BD" bordercolorlight="#FFFFCC"><font size="2">SERVER IP</font></td>
     <td width="78"  valign="bottom" height="16" bgcolor="#DBD7BD" bordercolorlight="#FFFFCC"><font size="2">Broker PORT</font></td>
     <td width="148" valign="bottom" height="16" bgcolor="#DBD7BD" bordercolorlight="#FFFFCC"><font size="2">DB NAME</font></td>
     <td width="113" valign="bottom" height="16" bgcolor="#DBD7BD" bordercolorlight="#FFFFCC"><font size="2">DB USER</font></td>
     <td width="113" valign="bottom" height="16" bgcolor="#DBD7BD" bordercolorlight="#FFFFCC"><font size="2">DB PASS</font></td>
     <td width="80" height="37" rowspan="4" bordercolorlight="#FFFFCC" bgcolor="#F5F5ED">
       <p><input type="submit" value="Run" name="B1" tabindex="7"></p></td>
   </tr>
   <tr>
     <td width="113" height="1" bordercolorlight="#FFFFCC" bgcolor="#F5F5ED"><font size="2"><input type="text" name="server_ip" size="20" tabindex="1" maxlength="15" value="<%=Request("server_ip")%>"></font></td>
     <td width="78"  height="1" bordercolorlight="#FFFFCC" bgcolor="#F5F5ED"><font size="2"><input type="text" name="cas_port" size="15" tabindex="2" maxlength="6" value="<%=Request("cas_port")%>"></font></td>
     <td width="148" height="1" bordercolorlight="#FFFFCC" bgcolor="#F5F5ED"><font size="2"><input type="text" name="db_name" size="20" tabindex="3" maxlength="20" value="<%=Request("db_name")%>"></font></td>
     <td width="113" height="1" bordercolorlight="#FFFFCC" bgcolor="#F5F5ED"><font size="2"><input type="text" name="db_user" size="15" tabindex="4" value="<%=Request("db_user")%>"></font></td>
     <td width="113" height="1" bordercolorlight="#FFFFCC" bgcolor="#F5F5ED"><font size="2"><input type="password" name="db_pass" size="15" tabindex="5" value="<%=Request("db_pass")%>"></font></td>
   </tr>
   <tr>
     <td width="573" colspan="5" valign="bottom" height="18" bordercolorlight="#FFFFCC" bgcolor="#DBD7BD"><font size="2">QUERY</font></td>
   </tr>
   <tr>
     <td width="573" colspan="5" height="25" bordercolorlight="#FFFFCC" bgcolor="#F5F5ED"><textarea rows="3" name="query" cols="92" tabindex="6"><%=Request("query")%></textarea></td>
   </tr>
 </table>
 </form>
 <hr>

</BODY>
</HTML>

<%
    ' get DSN and SQL statement.
    strIP = Request( "server_ip" )
    strPort = Request( "cas_port" )
    strUser = Request( "db_user" )
    strPass = Request( "db_pass" )
    strName = Request( "db_name" )
    strQuery = Request( "query" )

if strIP = "" then
   Response.Write "Input SERVER_IP."
        Response.End ' exit if no SERVER_IP's input.
    end if
    if strPort = "" then
       Response.Write "Input port number."
        Response.End ' exit if no Port's input.
    end if
    if strUser = "" then
       Response.Write "Input DB_USER."
        Response.End ' exit if no DB_User's input.
    end if
    if strName = "" then
       Response.Write "Input DB_NAME"
        Response.End ' exit if no DB_NAME's input.
    end if
    if strQuery = "" then
       Response.Write "Input the query you want"
        Response.End ' exit if no query's input.
    end if
 ' create connection object.
  strDsn = "driver={CUBRID Driver};server=" & strIP & ";port=" & strPort & ";uid=" & strUser & ";pwd=" & strPass & ";db_name=" & strName & ";"
' DB connection.
Set DBConn = Server.CreateObject("ADODB.Connection")
       DBConn.Open strDsn
    ' run SQL.
    Set rs = DBConn.Execute( strQuery )
    ' show the message by SQL.
    if InStr(Ucase(strQuery),"INSERT")>0 then
        Response.Write "A record is added."
        Response.End
    end if

    if InStr(Ucase(strQuery),"DELETE")>0  then
        Response.Write "A record is deleted."
        Response.End
    end if

    if InStr(Ucase(strQuery),"UPDATE")>0  then
        Response.Write "A record is updated."
        Response.End
    end if
%>
<table>
<%
    ' show the field name.
    Response.Write "<tr bgColor=#f3f3f3>"
    For index =0 to ( rs.fields.count-1 )
        Response.Write "<td><b>" & rs.fields(index).name & "</b></td>"
    Next
    Response.Write "</tr>"
    ' show the field value
    Do While Not rs.EOF
        Response.Write "<tr bgColor=#f3f3f3>"
        For index =0 to ( rs.fields.count-1 )
            Response.Write "<td>" & rs(index) & "</td>"
        Next
        Response.Write "</tr>"

        rs.MoveNext
    Loop
%>
<%
    set  rs = nothing
%>
</table>

You can check the result of the sample program by connecting to http://localhost/cubrid.asp. When you execute the ASP sample code above, you will get the following output. Enter an appropriate value in each field, enter the query statement in the Query field, and click [Run]. The query result will be displayed at the lower part of the page.

../_images/image83.png

ODBC API

For ODBC API, see ODBC API Reference ( http://msdn.microsoft.com/en-us/library/windows/desktop/ms714562%28v=vs.85%29.aspx ) on the MSDN page. See the table below to get information about the list of functions, ODBC Spec version, and compatibility that CUBRID supports.

API Version Introduced Standards Compliance Support
SQLAllocHandle 3.0 ISO 92 YES
SQLBindCol 1.0 ISO 92 YES
SQLBindParameter 2.0 ODBC YES
SQLBrowseConnect 1.0 ODBC NO
SQLBulkOperations 3.0 ODBC YES
SQLCancel 1.0 ISO 92 YES
SQLCloseCursor 3.0 ISO 92 YES
SQLColAttribute 3.0 ISO 92 YES
SQLColumnPrivileges 1.0 ODBC NO
SQLColumns 1.0 X/Open YES
SQLConnect 1.0 ISO 92 YES
SQLCopyDesc 3.0 ISO 92 YES
SQLDescribeCol 1.0 ISO 92 YES
SQLDescribeParam 1.0 ODBC NO
SQLDisconnect 1.0 ISO 92 YES
SQLDriverConnect 1.0 ODBC YES
SQLEndTran 3.0 ISO 92 YES
SQLExecDirect 1.0 ISO 92 YES
SQLExecute 1.0 ISO 92 YES
SQLFetch 1.0 ISO 92 YES
SQLFetchScroll 3.0 ISO 92 YES
SQLForeignKeys 1.0 ODBC YES (2008 R3.1 or later)
SQLFreeHandle 3.0 ISO 92 YES
SQLFreeStmt 1.0 ISO 92 YES
SQLGetConnectAttr 3.0 ISO 92 YES
SQLGetCursorName 1.0 ISO 92 YES
SQLGetData 1.0 ISO 92 YES
SQLGetDescField 3.0 ISO 92 YES
SQLGetDescRec 3.0 ISO 92 YES
SQLGetDiagField 3.0 ISO 92 YES
SQLGetDiagRec 3.0 ISO 92 YES
SQLGetEnvAttr 3.0 ISO 92 YES
SQLGetFunctions 1.0 ISO 92 YES
SQLGetInfo 1.0 ISO 92 YES
SQLGetStmtAttr 3.0 ISO 92 YES
SQLGetTypeInfo 1.0 ISO 92 YES
SQLMoreResults 1.0 ODBC YES
SQLNativeSql 1.0 ODBC YES
SQLNumParams 1.0 ISO 92 YES
SQLNumResultCols 1.0 ISO 92 YES
SQLParamData 1.0 ISO 92 YES
SQLPrepare 1.0 ISO 92 YES
SQLPrimaryKeys 1.0 ODBC YES (2008 R3.1 or later)
SQLProcedureColumns 1.0 ODBC YES (2008 R3.1 or later)
SQLProcedures 1.0 ODBC YES (2008 R3.1 or later)
SQLPutData 1.0 ISO 92 YES
SQLRowCount 1.0 ISO 92 YES
SQLSetConnectAttr 3.0 ISO 92 YES
SQLSetCursorName 1.0 ISO 92 YES
SQLSetDescField 3.0 ISO 92 YES
SQLSetDescRec 3.0 ISO 92 YES
SQLSetEnvAttr 3.0 ISO 92 NO
SQLSetPos 1.0 ODBC YES
SQLSetStmtAttr 3.0 ISO 92 YES
SQLSpecialColumns 1.0 X/Open YES
SQLStatistics 1.0 ISO 92 YES
SQLTablePrivileges 1.0 ODBC YES (2008 R3.1 or later)
SQLTables 1.0 X/Open YES

Backward compatibility is not supported for some CUBRID functions. Refer to information in the mapping table below to change unsupported functions into appropriate ones.

ODBC 2.x Functions ODBC 3.x Functions
SQLAllocConnect SQLAllocHandle
SQLAllocEnv SQLAllocHandle
SQLAllocStmt SQLAllocHandle
SQLBindParam SQLBindParameter
SQLColAttributes SQLColAttribute
SQLError SQLGetDiagRec
SQLFreeConnect SQLFreeHandle
SQLFreeEnv SQLFreeHandle
SQLFreeStmt with SQL_DROP SQLFreeHandle
SQLGetConnectOption SQLGetConnectAttr
SQLGetStmtOption SQLGetStmtAttr
SQLParamOptions SQLSetStmtAttr
SQLSetConnectOption SQLSetConnectAttr
SQLSetParam SQLBindParameter
SQLSetScrollOption SQLSetStmtAttr
SQLSetStmtOption SQLSetStmtAttr
SQLTransact SQLEndTran