Name                                Size  
 Parent Directory                      -   
 1. Introduction/                      -   
 2.  Employees Management System/      -   
 3. Hierarchical Queries/              -   
 4. Working with numbers/              -   
 5. Date Arithmetic/                   -   
 6. Advances Searching/                -   
 7. Window Functions/                  -   
 8. Metadata Queries/                  -   
 9. International Debt Analysis/       -   
 10. Stocks Markets Analysis/          -   
 11. Congratulations and Thank You!/   -   

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