DataStage Enterprise Edition 开发指南v1.0

Stage.......................................................................................................................17
3.1.14 Data Set Stage .....................................................................................................................18
3.1.15 File Set Stage.......................................................................................................................20
3.1.16 Lookup File Set Stage .........................................................................................................21
3.1.17 Oracle Enterprise Stage.......................................................................................................24
3.1.18 Aggregator Stage.................................................................................................................26
3.1.19 Remove Duplicates Stage....................................................................................................28
3.1.20 Compress Stage...................................................................................................................29
3.1.21 Expand Stage.......................................................................................................................30
3.1.22 Difference Stage..................................................................................................................31
3.1.23 Compare Stage ....................................................................................................................34
3.1.24 Switch Stage........................................................................................................................35
3.1.25 Column Import Stage ..........................................................................................................37
3.1.26 Column Export Stage ..........................................................................................................39
3.2 常用数据库的连接.....................................................................................................................41
3.2.1 Oracle数据库连接................................................................................................................41
4. 高级应用..........................................................................................................................................43
4.1 DATASTAGE BASIC接口.............................................................................................................43
4.2 自定义STAGE TYPE .....................................................................................................................43
4.2.1 Wrapped Stage ......................................................................................................................43
4.2.2 Build Stage...........................................................................................................................43
4.2.3 Custom Stage ........................................................................................................................43
4.3 性能调优 ....................................................................................................................................43
4.3.1 优化策略..............................................................................................................................44
5. 开发经验技巧汇总...........................................................................................................................46
5.1.1 问题.....................................................................................................................................46