Count value from database - sql

Question

I have below data.
ID UserID Grade
1 1 A
2 1 A
3 1 a
4 1 a
5 1 b
6 1 C
7 1 c
8 1 b
9 2 b
10 2 C
11 1 b
12 2 A
I want below results.
RunningNumber UserID Result Count
1 1 a 4
2 1 b 1
3 1 c 2
4 1 b 2
5 2 b 1
6 2 c 1
7 2 a 1
The result will count column Grade (case insensitive) and must be group by UserID.

Answer 1

Use as below
SELECT UserID, Grade, COUNT(ID) AS Count
FROM Table1
GROUP BY UserID,Grade;
Updated
SELECT ROW_NUMBER()
OVER (ORDER BY Grade) AS RunningNumber ,
UserID, Grade, COUNT(ID) AS Count
FROM Table1
GROUP BY UserID,Grade;

Answer 2

Just use Group by & count
SELECT ID ,UserID,Grade
COUNT(ID) FROM Tabel
GROUP BY Grade,UserID;

Answer 3

You can use DENSE_RANK for the RunningNumber, COUNT(*)OVER for the count per ID and ROW_NUMBER to take only the first row:
WITH CTE AS
(
SELECT
RunningNumber = DENSE_RANK() OVER (ORDER BY UserID, Grade),
UserID, Result = Grade,
[Count] = COUNT(*) OVER (PARTITION BY UserID, Grade),
RowNum = ROW_NUMBER() OVER (PARTITION BY UserID, Grade ORDER BY ID)
FROM dbo.TableName
)
SELECT RunningNumber, UserID, Result, [Count]
FROM CTE
WHERE RowNum = 1
Demo

Answer 4

$query_not="SELECT count(status) AS sum FROM `user_leave_details`WHERE (status='2' Or status='3') AND user_id_no='$user_id_no'";
$result=mysqli_query($bd,$query_not);
while($arr=mysqli_fetch_array($result))
{
$sum=$arr['sum'];
}
connect.php
<?php
$mysql_hostname = "localhost";
$mysql_user = "root";
$mysql_password = "";
$mysql_database = "";
$bd=mysqli_connect($mysql_hostname,$mysql_user,$mysql_password,$mysql_database);
?>