db::Table

apply_range apply_seek begin_seek cancel clear_range close create edit field_desc get_database get_insert_flags get_remove_flags get_row_id get_table_id get_table_mode index_desc insert is_bof is_eof is_opened lock_row lock_row lock_row lock_row open operator= post refresh remove seek seek_first seek_last seek_next seek_prior set_insert_flags set_range_end set_range_start set_remove_flags set_sort_order Table Table ~Table

db_len_t db::CursorRowAccessor::write_blob ( int  field, db_len_t  offset, const void *  data, db_len_t  len   ) [virtual, inherited] Write an array of bytes to any position in a BLOB (Binary Large OBject) field. Because BLOBs can be arbitrarily large they must be written to in discrete sections. The byte array given by data will be stored at the offset position within the BLOB field. write_blob should be used when inserting a new BLOB or when updating any chunk of an existing BLOB without reducing that BLOB's size. write_blob will automatically increase the size of an existing BLOB if given the end of the blob as its offset Parameters: field  The index of the field that should be written to. Use find_field to obtain this index. (>=0, <# of fields) (required) offset  The offset into the BLOB where data will be written. (>=0) data  The byte array which will be written to the BLOB. len  The length of data in bytes. (>=0) Returns: Amount of data written to BLOB in bytes when successful, otherwise: DB_EFIELD If field is not within required range, or if field is not of type FIELD_TYPE_BLOB DB_EINVAL If data is NULL but len is positive, or offset < 0, or len < 0. DB_ESTATE If table not opened, or table not in DB_TABLE_BROWSING mode. Precondition: The table must be in DB_TABLE_BROWSING mode. The row must already be inserted before calling write_blob. See also: write_blob_final, read_blob, get_blob_size, truncate_blob Implements db::RowAccessor.