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In Select Query we use WHERE clause to select only data that matches a specified criteria. Syntax
SELECT column(s) FROM tablename WHERE column operator value Example:
Table Name(empinfo)
FirstName
| LastName
| Email
| DOB
| Steve
| Martin
| smart.steve@studiesinn.com
| 08-04-1988
| David
| Fernandas
| davidfernandas@studiesinn.com
| 04-16-1977
| Ajay
| Rathor
| ajayrathor@studiesinn.com
| 08-24-1986
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$con = mysql_connect("localhost:3306","adam","123456");
if (!$con)
{
die('Could not connect: ' . mysql_error());
} mysql_select_db("mydb", $con);
$result = mysql_query("SELECT * FROM empinfo where FirstName=’David’");
while($row = mysql_fetch_array($result))
{
echo $row['FirstName'] . " " . $row['LastName'] . “ “ $row[‘DOB’];
echo "
";
}
mysql_close($con);
?>
Output will be. David Fernandas 04-16-1977
Operator that can be used in where clause are as under
= Equal
!= Not equal
> Greater than
< Less than
>= Greater than or equal
<= Less than or equal
BETWEEN Between an inclusive range
LIKE Search for a pattern
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