You should specify what you mean. The second battle he ever won? The second battle of the Gallic Wars? The Second battle of Caesar's Civil War? Which one?
It the first case, Caesar first command an army when he was appointed governor of Hispania Ulterior (Further Spain) in 62 BC. There he fought in Lusitania. I do not have information about the battles he fought there.
In the second case, the second battle of the Gallic Wars was the battle of Bibracte against the Helvetii in the department of Saône-et-Loire in France in 58 BC
In the third case the second battle of Caesar's Civil War was the Battle of Dyrrachium in Albania in 48 BC.
Battle of Pharsalus When Caesar defeated his arch enemy Pompey
Julius Caesar defeated Vercingetorix .
The Union won the second battle at fort Mcallister
Julius Caesar won Pompey in battle When Pompey perceived that all was lost, he fled from the field in a state of the wildest excitement and consternation.
The South won the Second Battle of Bull Run, as it had won the First Battle of Bull Run. Although the North won the war, the South actually won the majority of battles.
british
Mughal Akabar
First battle, Parliamentarian victory The second battle was indecisive
The Battle of Munda (45 BC) in southern Spain was not a rebellion. It was the final battle of Caesar's Civil War, the war Caesar fought against the forces of the senate. The result was that Caesar won the battle and the war and went back to Rome, where he concentrated power in his hands.
There is no historical record of a second battle of the Adobe wall. The only battle known as the Battle of Adobe Walls took place in 1864 and was a victory for the Comanche, Kiowa, and Cheyenne warriors against the US Army.
You need more information in the question.
ward