SQLite as a Result File Format in OMNeT++format ● Vector Recording performance: 2-2.5x slower (net writing speed) ● Read performance: Depends on the complexity of the query, but it can be optimized by adding indexes after recording the database the data inside R. (R already has SQLite access library) Possible drawbacks: ● Speed ○ vector recording performance is about 2-2.5x slower than text-based file format ○ in actual simulations, our experience0 码力 | 21 页 | 1.08 MB | 1 年前3- SQLite in Androidjava#1335 A single table to represent all types of media files: Each row can be an image, audio, video, or playlist _id _data _size title … 1 a.jpg 10000 a 2 b.bmp 20000 b 3 c.mp3 320000 c 4 d.avi image0.jpg 102400 profile select only images Views in Media Provider files images audio_meta video artists albums audio 31
Views in Media Provider CREATE VIEW IF NOT EXISTS audio
0 码力 | 40 页 | 707.67 KB | 1 年前3共 2 条- 1