Doubt n Oracle. How to use joins

Please tell me how to do this

Date. Column1. Value
Apr20. 11. 50
Apr20. 12. 40
Apr20. 13. 30
Alr21. 11. 66
Apr21. 12. 77

Output
Date.. 11(name). 12. 13
Apr20. 50. 40. 30
Apr21. 66. 77. Null


How to do this