03-30-2009
Awk and sql field comparation help.
Hi, before my question let me excuse myself for the bad grammar and possible confusion (i am used to write in spanish)*
I need some help, i'm making a query:
SELECT empnmbr as empl, origin as addr, old_fields_value as prev_sta, new_fields_value as new_sta \
FROM webapplog$bdate, datachangelog$bdate \
WHERE datachangelog$bdate.webapplog_oid = webapplog$bdate.oid \
AND datachangelog$bdate.table_name = 'address'
ORDER BY WEBAPPLOG_OID
which returns answers like:
empl | addr | prev_sta | new_sta
23424|3030303| 17,1,2,3,4,5,6,7,8|17,2,2,3,4,5,6,7,9
12345|home ad| 18,1,5,1,6,1,16,15|18,2,4,1,6,1,16,19
What i need is to read every line of the answer, compare the differences between the third and fourth fields for every line, and mark in which position of those fields are the differences.
so the answer will be more like:
empl | addr | prev_sta | new_sta | position
23424|3030303| 1 |2 | 2
23424|3030303| 8 |9 | 9
12345|home ad| 1 |2 | 2
12345|home ad| 5 |4 | 3
12345|home ad| 15 |19 | 8
but i have no idea what to do here. Maybe passing each field to an array and comparing arrays? the third and fourth fields of the original query have always the same number of elements (25) but sometimes only a single element is different.
Please any hint is helpful
*Si a alguno de los miembros del foro le parece mas simple puedo escribir en espanol y quiza sea mas claro el caso
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LEARN ABOUT PHP
mssql_field_type
MSSQL_FIELD_TYPE(3) MSSQL_FIELD_TYPE(3)
mssql_field_type - Gets the type of a field
SYNOPSIS
string mssql_field_type (resource $result, [int $offset = -1])
DESCRIPTION
Returns the type of field no. $offset in $result.
PARAMETERS
o $result
- The result resource that is being evaluated. This result comes from a call to mssql_query(3).
o $offset
- The field offset, starts at 0. If omitted, the current field is used.
RETURN VALUES
The type of the specified field index on success or FALSE on failure.
EXAMPLES
Example #1
mssql_field_type(3) example
<?php
// Connect to MSSQL and select the database
mssql_connect('MANGOSQLEXPRESS', 'sa', 'phpfi');
mssql_select_db('php');
// Send a select query to MSSQL
$query = mssql_query('SELECT [name] FROM [php].[dbo].[persons]');
// Print the field type and length
echo ''' . mssql_field_name($query, 0) . '' is a type of ' .
strtoupper(mssql_field_type($query, 0)) .
'(' . mssql_field_length($query, 0) . ')';
// Free the query result
mssql_free_result($query);
?>
The above example will output something similar to:
SEE ALSO
mssql_field_length(3), mssql_field_name(3).
PHP Documentation Group MSSQL_FIELD_TYPE(3)