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Full Discussion: While-read and if-elif
Top Forums Shell Programming and Scripting While-read and if-elif Post 302700225 by pamu on Thursday 13th of September 2012 06:30:46 AM
Old 09-13-2012
Quote:
Originally Posted by RudiC
@pamu: I think this would be the most striking example:
Code:
$ [[ 21 > 3 ]] && echo gt || echo lt
lt
$ [[ 21 -gt 3 ]] && echo gt || echo lt
gt

21 interpreted as a string compares less than 3, while as an integer, it compares greater. This is valid for bash; maybe someone can comment on other shells.
That's good one.. it clears useless use of < and > while numeric comparison.. removed from numeric comparison...Smilie

As explained in my previous post < and > signs treats as string so they compare each digit by digit. such as..

Code:
$ [[ 211 > 12 ]] && echo gt || echo lt        # Here it compares 2 with 1 so 2 is greater than 1 as per sort pattern so gt.
gt

$ [[ 211 > 32 ]] && echo gt || echo lt         #Here it compares 2 with 3 so 3 is greater than 2 as per sort pattern so lt.
lt

Thanks Rudic...

Last edited by pamu; 09-13-2012 at 07:45 AM..
 

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MSSQL_FETCH_FIELD(3)													      MSSQL_FETCH_FIELD(3)

mssql_fetch_field - Get field information

SYNOPSIS
object mssql_fetch_field (resource $result, [int $field_offset = -1]) DESCRIPTION
mssql_fetch_field(3) can be used in order to obtain information about fields in a certain query result. PARAMETERS
o $result - The result resource that is being evaluated. This result comes from a call to mssql_query(3). o $field_offset - The numerical field offset. If the field offset is not specified, the next field that was not yet retrieved by this function is retrieved. The $field_offset starts at 0. RETURN VALUES
Returns an object containing field information. The properties of the object are: o name - column name. if the column is a result of a function, this property is set to computed#N, where #N is a serial number. o column_source - the table from which the column was taken o max_length - maximum length of the column o numeric - 1 if the column is numeric o type - the column type. EXAMPLES
Example #1 mssql_fetch_field(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 $query = mssql_query('SELECT * FROM [php].[dbo].[persons]'); // Construct table echo '<h3>Table structure for 'persons'</h3>'; echo '<table border="1">'; // Table header echo '<thead>'; echo '<tr>'; echo '<td>Field name</td>'; echo '<td>Data type</td>'; echo '<td>Max length</td>'; echo '</tr>'; echo '</thead>'; // Dump all fields echo '<tbody>'; for ($i = 0; $i < mssql_num_fields($query); ++$i) { // Fetch the field information $field = mssql_fetch_field($query, $i); // Print the row echo '<tr>'; echo '<td>' . $field->name . '</td>'; echo '<td>' . strtoupper($field->type) . '</td>'; echo '<td>' . $field->max_length . '</td>'; echo '</tr>'; } echo '</tbody>'; echo '</table>'; // Free the query result mssql_free_result($query); ?> SEE ALSO
mssql_field_seek(3). PHP Documentation Group MSSQL_FETCH_FIELD(3)
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