In this chapter, you have learned three new optimization techniques that can be performed to achieve optimal efficiency for file geodatabases. You worked with both spatial and attribute indexing, and you learned when to use each efficiently. You also learned that overusing indexing could cause a performance penalty if planned poorly. Then, you worked with compression, which helps drastically reduce the geodatabase size and save plenty of disk space. Finally, you learned how compacting can help speed up queries of a frequently edited geodatabase. The next chapter will discuss some scripting and programming techniques on how to manage and administer the geodatabase using the file geodatabase API.