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bcp_readfmt

Reads a data file format definition from the specified format file.


RETCODE bcp_readfmt (
        HDBC hdbc,
        LPCTSTR szFormatFile);

hdbc

Is the bulk copy-enabled ODBC connection handle.

szFormatFile

Is the path and file name of the file containing the format values for the data file.

SUCCEED or FAIL.

After bcp_readfmt reads the format values, it makes the appropriate calls to bcp_columns and bcp_colfmt. There is no need for you to parse a format file and make these calls.

To persist a format file, call bcp_writefmt. Calls to bcp_readfmt can reference saved formats. For more information, see bcp_init.

Alternately, the bulk-copy utility (bcp) can save user-defined data formats in files that can be referenced by bcp_readfmt. For more information about the bcp utility and the structure of bcp data format files, see Working with Format Files.

ms130971.note(en-US,SQL.90).gifNote:
The format file must have been produced by version 4.2 or later of the bcp utility.

Example

// Variables like henv not specified.
HDBC      hdbc;
DBINT      nRowsProcessed;

// Application initiation, get an ODBC environment handle, allocate the
// hdbc, and so on.
... 

// Enable bulk copy prior to connecting on allocated hdbc.
SQLSetConnectAttr(hdbc, SQL_COPT_SS_BCP, (SQLPOINTER) SQL_BCP_ON,
   SQL_IS_INTEGER);

// Connect to the data source, return on error.
if (!SQL_SUCCEEDED(SQLConnect(hdbc, _T("myDSN"), SQL_NTS,
   _T("myUser"), SQL_NTS, _T("myPwd"), SQL_NTS)))
   {
   // Raise error and return.
   return;
   }

// Initialize bulk copy. 
if (bcp_init(hdbc, _T("myTable"), _T("myData.csv"),
   _T("myErrors"),    DB_IN) == FAIL)
   {
   // Raise error and return.
   return;
   }

if (bcp_readfmt(hdbc, _T("myFmtFile.fmt")) == FAIL)
   {
   // Raise error and return.
   return;
   }

if (bcp_exec(hdbc, &nRowsProcessed) == SUCCEED)
   {
   printf("%ld rows copied to SQL Server\n", nRowsProcessed);
   }

// Carry on.

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