mysql select specific column(s) using sql command
mysql-select-specific-columns.php
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<h2>mysql select specific column(s) using sql command</h2>
<pre>
<?php
/*
--------------------------------------------------------------------------------
WE WANT TO SELECT DepartmentID and DepartmentName columns of departments table
by using sql command
--------------------------------------------------------------------------------
*/
$sql = "SELECT DepartmentID, DepartmentName FROM departments";
/*
--------------------------------------------------------------------------
you can filter duplicate rows by using DISTINCT keyword before a column
--------------------------------------------------------------------------
*/
$sql = "SELECT DISTINCT DepartmentID, DepartmentName FROM departments";
/*
-------------------------------------------
you can use this in php. just follow this:
-------------------------------------------
*/
mysql_connect('localhost', 'root', 'root');
mysql_select_db('hr');
mysql_query($sql);
/*
---------------------------------------------------------
provide your own data if you have differ than that of me
---------------------------------------------------------
*/
?>
</pre>
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