学习文档
目 录
目 录..........................................................................................................................................................I
1. 引言.......................................................................................................................................................1
1.1. 编写目的........................................................................................................................................1
1.2. 帮助使用........................................................................................................................................1
2. 产品概述...............................................................................................................................................1
3. 简单 JOB 示例.....................................................................................................................................4
4. 常规应用.............................................................................................................................................25
4.1. 常用组件使用方法......................................................................................................................25
4.1.1. Sequential file.......................................................................................................................25
4.1.2. Annotation............................................................................................................................28
4.1.3. Change Capture Stage...........................................................................................................30
4.1.4. Copy Stage............................................................................................................................31
4.1.5. Filter Stage............................................................................................................................32
4.1.6. Funnel Stage.........................................................................................................................33
4.1.7. Tansformer Stage..................................................................................................................34
4.1.8. Sort Stage..............................................................................................................................35
4.1.9. LookUp Stage.......................................................................................................................36
4.1.10. Join Stage............................................................................................................................37
4.1.11. LookUp Stage 和 Join Stage的区别..................................................................................38
4.1.12. Merge Stage........................................................................................................................38
4.1.13. Modify Stage......................................................................................................................39
4.1.14. Data Set Stage.....................................................................................................................40
4.1.15. File Set Stage......................................................................................................................42
4.1.16. Lookup File Set Stage.........................................................................................................43
4.1.17. Oracle Enterprise Stage......................................................................................................46
4.1.18. Aggregator Stage................................................................................................................47
4.1.19. Remove Duplicates Stage...................................................................................................49
4.1.20. Compress Stage..................................................................................................................50
4.1.21. Expand Stage......................................................................................................................51
4.1.22. Difference Stage.................................................................................................................52
4.1.23. Compare Stage....................................................................................................................54
4.1.24. Switch Stage.......................................................................................................................55
4.1.25. Column Import Stage..........................................................................................................56
4.1.26. Column Export Stage..........................................................................................................58
5. 高级应用.............................................................................................................................................60
5.1. DATASTAGE BASIC接口.............................................................................................................60
5.2. 自定义STAGE TYPE.....................................................................................................................60
5.2.1. Wrapped Stage......................................................................................................................60
5.2.2. Build Stage............................................................................................................................65
5.2.3. Custom Stage........................................................................................................................73
5.3. 性能调优......................................................................................................................................73
5.3.1. 优化策略..............................................................................................................................73
5.3.2. 关键问题分析......................................................................................................................77
5.3.3. 并行度..................................................................................................................................78
版本:V0.1 - i -