File updation on matching key Post: 302975220

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Top Forums UNIX for Dummies Questions & Answers File updation on matching key Post 302975220 by Don Cragun on Thursday 9th of June 2016 01:20:17 PM

06-09-2016

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I'm glad you got it to work. If you'd like to show us how you changed the code to perform the rounding you wanted, we might be able to offer suggestions for alternative ways to do it. (And, having your completed solution in the thread helps others who may have a similar problem in the future if they can see how you solved the problem.)

If field 8 always 6 characters? Or, can the length of that field vary from file to file too? (Making that field variable length isn't complicated, if the length varies.)

Can the original value in field 8 ever appear as the value of field 2, 3, 4, 5, 6, or 7 in any of your input files? (As long as the 1st field is always left aligned and the aren't any empty fields in your input files, it wouldn't be too hard to be sure that field 8 is modified in the output and not an earlier field with the same contents. But, the code is faster and simpler as provided in RudiC's suggestion if this isn't a concern for your input files.)

Don Cragun

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px_put_data_bytes

PX_PUT_DATA_BYTES(3)					     Library Functions Manual					      PX_PUT_DATA_BYTES(3)

NAME

       PX_put_data_bytes -- Put value into a bytes data field

SYNOPSIS

       #include <paradox.h>

       void PX_put_data_bytes(pxdoc_t *pxdoc, char *data, int len, char *value)

DESCRIPTION

       Simply  copies  a  sequence of bytes into a data field as it stored in the database file. You should use this function instead of accessing
       the record data directly.

       data points to start of the data field in the record. It must be calculated by summing up all field length before the field to  operate	on
       and add it to the base pointer of the record.

       This function is similar to PX_put_data_alpha(3) without recoding.  It is mostly used to store field data of Type pxfBytes.

SEE ALSO

       PX_put_data_byte(3), PX_put_data_short(3), PX_put_data_long(3), PX_put_data_double(3), PX_put_data_alpha(3)

AUTHOR

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

															      PX_PUT_DATA_BYTES(3)

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