├── Advanced
    └── README.md
└── Beginner
    └── README.md


/Advanced/README.md:
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https://raw.githubusercontent.com/rihemebh/SQL-Cheat-Sheets/HEAD/Advanced/README.md


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/Beginner/README.md:
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https://raw.githubusercontent.com/rihemebh/SQL-Cheat-Sheets/HEAD/Beginner/README.md


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