PHP SQLite delete record and get affected rows

SQLite

We will create the database and connection object.
$my_conn = new PDO('sqlite:my_student.sqlite3');
We will use $my_conn to execute our query.

By using delete query we will remove records.

We will add conditions to our DELETE query by using WHERE.

Deleting single record

By using record ID ( unique ) we will delete a record.
$my_conn = new PDO('sqlite:my_student.sqlite3');

// Set errormode to exceptions
$my_conn->setAttribute(PDO::ATTR_ERRMODE,PDO::ERRMODE_EXCEPTION);

$id=3;
$query="DELETE FROM student where id=:id";
$sql=$my_conn->prepare($query);
$sql->bindParam(':id',$id,PDO::PARAM_INT, 5);

if($sql->execute()){
echo "Successfully deleted  record ";
echo "<br><br>Number of rows deleted  : ".$sql->rowCount();
}
else{
print_r($sql->errorInfo()); // if any error is there it will be posted
$msg=" Database problem, please contact site admin ";
}
 
$my_conn = null;
Output is here
Successfully deleted record

Number of rows deleted : 1

Deleting more records

We will delete all rows of class equal to Four
$class='Four';
$query="DELETE FROM student where class=:class";
$sql=$my_conn->prepare($query);
$sql->bindParam(':class',$class,PDO::PARAM_STR, 15);

if($sql->execute()){
echo "Successfully deleted  records ";
echo "<br><br>Number of rows deleted  : ".$sql->rowCount();
}
else{
print_r($sql->errorInfo()); // if any error is there it will be posted
$msg=" Database problem, please contact site admin ";
}
 
$my_conn = null;
Output is here
Successfully deleted records

Number of rows deleted : 9

Deleting all records

There is no TRUNCATE command to delete all records in SQLite, so we will use DELETE command to remove all records from table.
$query="DELETE FROM student"; // Query to delete all records 
$sql=$my_conn->prepare($query);

if($sql->execute()){
echo "Successfully deleted  records ";
echo "<br><br>Number of rows deleted  : ".$sql->rowCount();
}
else{
print_r($sql->errorInfo()); // if any error is there it will be posted
$msg=" Database problem, please contact site admin ";
}
 
$my_conn = null;
Output ( balance records are deleted from student table)
Successfully deleted records

Number of rows deleted : 25
Download sample script for SQLite with instructions on how to use.

Check PHP pdo support for SQLite using phpinfo()

PHP SQLite PDO Functions


plus2net.com







Post your comments , suggestion , error , requirements etc here




We use cookies to improve your browsing experience. . Learn more
HTML MySQL PHP JavaScript ASP Photoshop Articles FORUM . Contact us
©2000-2020 plus2net.com All rights reserved worldwide Privacy Policy Disclaimer