PHP-MYSQL |  mysqli_fetch_assoc() VS  mysqli_fetch_array()

mysqli_fetch_assoc() function fetch a result row as an associative array where as mysqli_fetch_array() function fetch a result row as an associative array, a numeric array, or both.

PHP-MYSQL |  Fetch Recoards From MySql table

There are 4 ways:

1. mysqli_fetch_row() - Get a result row as an enumerated array
2. mysqli_fetch_array() - Fetch a result row as an associative array, a numeric array, or both
3. mysqli_fetch_object() - Fetch a result row as an object
4. mysqli_fetch_assoc() - Fetch a result row as an associative array

PHP | Find the number of rows in a result set

Bellow code is use for the same

$sql = "SELECT * FROM table1";
$result = mysql_query($sql, $db_link);
$num_rows = mysql_num_rows($result);
echo $num_rows;

There are 5 different types of storage engine present in MySql.

1. MyISAM
2. Heap
3. Merge
4. INNO DB
5. ISAM

MyISAM is the default storage engine for MySQL

MySQL | Find last insert id in the table

By using the MySQL function mysqli_insert_id() we can retrieve the last inserted id in the database table.