Check out example codes for "can't connect to local mysql server through socket". It will help you in understanding the concepts better.
Code Example 1
Solution #1: Check If MySQL Service is Runnning. Solution #2: Connect with 127.0. 0.1. Solution #3: Modify the my. cnf file. Solution #4: Verify mysql. sock Location. Solution #5: Change MySQL Folder Permission. Solution #6: Multiple MySQL Instances.
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