number     Created_Date      Closed_Date       Close_Notes
T1         8/10/2024          null              null    
T1         8/10/2024          8/11/2024         Completed Successfully
T2         8/11/2024          null              null    
T2         8/11/2024          8/13/2024         null
T2         8/11/2024          8/13/2024         Completed Successfully

It is time series data. We need output as below,

Expected output:
number     Created_Date      Closed_Date       Close_Notes
T1          8/10/2024        8/11/2024          Completed Successfully
T2          8/11/2024        8/13/2024          Completed Successfully

Query i tried,

SELECT
    Number,
    Close_Notes,
    min(Created_Date),
    max(Closed_Date)
  FROM
    SN_Change_Request group by Number