Desktop Functions:

   Smart Device Functions:

Show Recent Changes
Subscribe (RSS)
Misc. Pages
Helpful Tools
Suggested Reading
Website TODO List
Support Forum
Download Visual Studio Add-In

Terms of Use
Privacy Policy
SQLBindCol (odbc32)
Bind a buffer to a column of the result set.

C# Signature:

[DllImport("odbc32.dll", CallingConvention=CallingConvention.Cdecl)]
static extern short SQLBindCol(HandleRef StatementHandle, short ColumnNumber, short
TargetType, HandleRef TargetValue, int BufferLength, out IntPtr StrLen_or_Ind);

VB Signature:

<DllImport("odbc32.dll", CallingConvention:=CallingConvention.Cdecl)>
Shared Function SQLBindCol(ByVal StatementHandle As HandleRef, ByVal ColumnNumber As _
Short, ByVal TargetType As Short, ByVal TargetValue As HandleRef, ByVal BufferLength As _
IntPtr, <Out> ByRef StrLen_or_Ind As IntPtr) As Short

User-Defined Types:




Tips & Tricks:

Sample Code:


//****Show the user a list of all tables in a database****
            //Initialize pointers
            IntPtr environmentHandle = IntPtr.Zero;
            IntPtr dbcHandle = IntPtr.Zero;
            IntPtr stmtHandle = IntPtr.Zero;
            IntPtr temp = IntPtr.Zero;
            //Allocate some space to hold mapped table names
            IntPtr szTableName = Marshal.AllocHGlobal(256);
            short strLength = 0;
            //We will use a DSN in our connection string
            string connectionString = "DSN=SomeDSN; Uid=myun; Pwd=mypwd;";
            StringBuilder completedConnString = new StringBuilder(1024);

            //Allocate an environment handle to use
            SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, out environmentHandle);
            //Set the environment attribute SQL_ATTR_ODBC_VERSION to the latest version of ODBC driver
            SQLSetEnvAttr(environmentHandle.ToInt32(), SQL_ATTR_ODBC_VERSION, new IntPtr(SQL_OV_ODBC3), 0);
            //Allocate a database connection handle, using the environment handle we allocated earlier
            SQLAllocHandle(SQL_HANDLE_DBC, environmentHandle.ToInt32(), out dbcHandle);

            //Connect to the DB, the completed connection string will be passed back
            short retcode = SQLDriverConnect(dbcHandle, IntPtr.Zero, connectionString, 256, completedConnString, 1024, out strLength, SQL_DRIVER_COMPLETE);

            //Allocate a statment handle
            SQLAllocHandle(SQL_HANDLE_STMT, dbcHandle.ToInt32(), out stmtHandle);
            //Bind the 3rd column (Table Name) in the statement's return data to szTableName
            SQLBindCol(stmtHandle, 3, SQL_C_CHAR, szTableName, 256, out temp);

            //Get a list of the tables (no views) in the current DB
            SQLTables(stmtHandle, null, 0, null, 0, null, 0, "TABLE", -3);

            //Loop thru returned data
            StringBuilder str = new StringBuilder();
            while(SQLFetch(stmtHandle) != SQL_NO_DATA)
            }//end while

            //Free resources and disconnect
            SQLFreeStmt(stmtHandle, SQL_CLOSE);
            SQLFreeHandle(SQL_HANDLE_DBC, dbcHandle);                        


Alternative Managed API:

Do you know one? Please contribute it!

SQLBindCol on MSDN

Please edit this page!

Do you have...

  • helpful tips or sample code to share for using this API in managed code?
  • corrections to the existing content?
  • variations of the signature you want to share?
  • additional languages you want to include?

Select "Edit This Page" on the right hand toolbar and edit it! Or add new pages containing supporting types needed for this API (structures, delegates, and more).

Access directly from VS:
Terms of Use
Edit This Page
Find References
Show Printable Version