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Top Forums Shell Programming and Scripting sum numbers in multiple files Post 302216975 by joeyg on Monday 21st of July 2008 04:34:36 PM
Old 07-21-2008
Question continuing with my last notes

Code:
DirA
 out.0
  contains 118 rows, each with a number
 out.1
  contains 118 rows, each with a number
 ...
DirB
 repeats

Code:
inside DirA
 open out.0
  add up all rows in the file, get a number 31543
  write that to a temp file call DirA_sums
 open out.1
  add up all rows in the file, get a number 19548
  write that to a temp file call DirA_sums
  DirA_sums now contains 31543 19548
 continue through all of the files
inside DirB
 process the out.? files in same manner

continue through DirK (11th directory)

After the above, I would have eleven files, each containing 118 numbers (which are the sums from the files within the directory)

Do I got that right?
 

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MAXDB_STMT_AFFECTED_ROWS(3)						 1					       MAXDB_STMT_AFFECTED_ROWS(3)

maxdb_stmt_affected_rows - Returns the total number of rows changed, deleted, or inserted by the last executed statement

       Procedural style

SYNOPSIS
int maxdb_stmt_affected_rows (resource $stmt) DESCRIPTION
Object oriented style int$maxdb_stmt->affected_rows () maxdb_stmt_affected_rows(3) returns the number of rows affected by INSERT, UPDATE, or DELETE query. If the last query was invalid or the number of rows can not determined, this function will return -1. RETURN VALUES
An integer greater than zero indicates the number of rows affected or retrieved. Zero indicates that no records where updated for an UPDATE/DELETE statement, no rows matched the WHERE clause in the query or that no query has yet been executed. -1 indicates that the query has returned an error or the number of rows can not determined. EXAMPLES
Example #1 Object oriented style <?php $maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB"); /* check connection */ if (maxdb_connect_errno()) { printf("Connect failed: %s ", maxdb_connect_error()); exit(); } /* create temp table */ $maxdb->query("CREATE TABLE temp.mycity LIKE hotel.city"); $query = "INSERT INTO temp.mycity SELECT * FROM hotel.city WHERE state LIKE ?"; /* prepare statement */ if ($stmt = $maxdb->prepare($query)) { /* Bind variable for placeholder */ $code = 'N%'; $stmt->bind_param("s", $code); /* execute statement */ $stmt->execute(); printf("rows inserted: %d ", $stmt->affected_rows); /* close statement */ $stmt->close(); } /* close connection */ $maxdb->close(); ?> Example #2 Procedural style <?php $link = maxdb_connect("localhost", "MONA", "RED", "DEMODB"); /* check connection */ if (maxdb_connect_errno()) { printf("Connect failed: %s ", maxdb_connect_error()); exit(); } /* create temp table */ maxdb_query($link, "CREATE TABLE temp.mycity LIKE hotel.city"); $query = "INSERT INTO temp.mycity SELECT * FROM hotel.city WHERE state LIKE ?"; /* prepare statement */ if ($stmt = maxdb_prepare($link, $query)) { /* Bind variable for placeholder */ $code = 'N%'; maxdb_stmt_bind_param($stmt, "s", $code); /* execute statement */ maxdb_stmt_execute($stmt); printf("rows inserted: %d ", maxdb_stmt_affected_rows($stmt)); /* close statement */ maxdb_stmt_close($stmt); } /* close connection */ maxdb_close($link); ?> The above example will output something similar to: rows inserted: 4 SEE ALSO
maxdb_stmt_num_rows(3), maxdb_prepare(3). PHP Documentation Group MAXDB_STMT_AFFECTED_ROWS(3)
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