07-19-2013
Mr Don,
First step:
1. Need to sort based on column 1 and column 6
2. For every line in the input file where the 1st field and the 6th field are the same, print the 1st field, the 6th field, and the sum of the values in the 3rd field
i think if we already sort the date (column1) and column6 then the output should be in order
thanks
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LEARN ABOUT PHP
fbsql_fetch_field
FBSQL_FETCH_FIELD(3) 1 FBSQL_FETCH_FIELD(3)
fbsql_fetch_field - Get column information from a result and return as an object
SYNOPSIS
object fbsql_fetch_field (resource $result, [int $field_offset])
DESCRIPTION
Used in order to obtain information about fields in a certain query result.
PARAMETERS
o $
result -A result identifier returned by fbsql_query(3) or fbsql_db_query(3).
o $field_offset
- The numerical offset of the field. The field index starts at 0. If not specified, the next field that wasn't yet retrieved by
fbsql_fetch_field(3) is retrieved.
RETURN VALUES
Returns an object containing field information, or FALSE on errors.
The properties of the object are:
o name - column name
o table - name of the table the column belongs to
o max_length - maximum length of the column
o not_null - 1 if the column cannot be
NULL
o type - the type of the column
EXAMPLES
Example #1
fbsql_fetch_field(3) example
<?php
fbsql_connect($host, $user, $password)
or die("Could not connect");
$result = fbsql_db_query("database", "select * from table")
or die("Query failed");
# get column metadata
$i = 0;
while ($i < fbsql_num_fields($result)) {
echo "Information for column $i:<br />
";
$meta = fbsql_fetch_field($result);
if (!$meta) {
echo "No information available<br />
";
}
echo "<pre>
max_length: $meta->max_length
name: $meta->name
not_null: $meta->not_null
table: $meta->table
type: $meta->type
</pre>";
$i++;
}
fbsql_free_result($result);
?>
SEE ALSO
fbsql_field_seek(3).
PHP Documentation Group FBSQL_FETCH_FIELD(3)