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px_set_blob_file(3) [debian man page]

PX_SET_BLOB_FILE(3)					     Library Functions Manual					       PX_SET_BLOB_FILE(3)

NAME

       PX_set_blob_file -- Associate blob file with database

SYNOPSIS

       #include <paradox.h>

       int PX_set_blob_file(pxdoc_t *pxdoc, const char *filename)

DESCRIPTION

       Opens  or  creates  the	given blob file and associates it with the Paradox database. This function must be called before accessing records
       whose blob data is stored in a .MB file. It must also be called after opening or creating the paradox database. If the blob  data  is  con-
       tained in the record itself or can be stored in the record, this function may not be called.

       This  function  must  be called after opening or creating the database file, because it uses the same file open mode. If you call it before
       PX_open_file(3) or PX_create_file(3)	       it will quit with an error.

RETURN VALUE

       Returns a value < 0 in case of an error, otherwise 0.

SEE ALSO

       PX_open_file(3), PX_create_file(3)

AUTHOR

       This manual page was written by Uwe Steinmann uwe@steinmann.cx.

															       PX_SET_BLOB_FILE(3)

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PX_SET_BLOB_FILE(3)													       PX_SET_BLOB_FILE(3)

px_set_blob_file - Sets the file where blobs are read from

SYNOPSIS

       bool px_set_blob_file (resource	$pxdoc, string	$filename)

DESCRIPTION

	Sets  the  name  of  the  file	where  blobs are going to be read from or written into. Without calling this function, px_get_record(3) or
       px_retrieve_record(3) will only return data in blob fields if the data is part of the record and not stored in the blob file. Blob data	is
       stored in the record if it is small enough to fit in the size of the blob field.

	Calling  px_put_record(3),  px_insert_record(3),  or px_update_record(3) without calling px_set_blob_file(3) will result in truncated blob
       fields unless the data fits into the database file.

	Calling this function twice will close the first blob file and open the new one.

PARAMETERS

	      o $pxdoc
		- Resource identifier of the paradox database as returned by px_new(3).

	      o $filename
		- The name of the file. Its extension should be .MB.

RETURN VALUES

	Returns TRUE on success or FALSE on failure.

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