When you have a wet basement, there are so many different things that can be fixed that you feel overwhelmed. It's a good idea to hire a specialist such as a civil engineer to get access to the situation and provide you with a plan of action.
Without a general plan, you will likely find a mixed solution that doesn't solve your water problem. This is very similar to treating the symptoms of disease regardless of the cause of the problem.
Repairing cracked or leaky basement wall repairs in a foundation can be a very daunting task, but it will only get worse if left unchecked. Small cracks become big cracks and the damage can spread throughout the house. In the end, the foundation received the rest of the house!
If you see a water leak in the corner where the floor meets the wall, you have several options for securing it. One solution is to install special diversion plates that catch leaking water and direct it away from the basement.
A more drastic, but permanent, way to dry out a basement is to dig up the soil around the house, waterproof the walls, and repair the cracks. It is possible to apply a liquid solution to the walls, sealing them with water. This rubber mortar penetrates real cement and provides excellent waterproofing.
You can also install waterproof panels on the walls and keep water away from the house. This works best when there is no other way to replace the water from entering the house.