On the Stage tab, select Stage variables, and then click Add stage variable +. Enter the variable name, initial derivation value, SQL type, extended information (if variable contains Unicode data), precision, scale, and an optional description. Variable names must begin with an alphabetic chara...
datastage面试300题 1. What are the Environmental variables in Datastage? 2. Check for Job Errors in datastage 3. What are Stage Variables, Derivations and Constants? 4. What is Pipeline Parallelism?5. Debug stages in PX6. How do you remove duplicates in dataset 7. What is the difference...
Evaluate each stage variable initial value For each input row to process: Evaluate each stage variable derivation value (unless empty) Evaluate each loop variable initial value While the evaluated loop condition is true:...
在Constraint及Derivation中可以使用Job parameters及Stage Variables,Job parameter是全局的,而Stage Variable只局限于此Stage。 Transformer的执行顺序: Transformer有stage variables、derivations和constraints,他们的执行顺序是怎样的? 1、先执行stage variables,即先计算Stage变量的值; 2、接着是constraints(link),可以使用S...
lock table 'table_name' in share mode APT_DBNAME environment variable in DataStage The APT_DBNAME environment variable specifies the name of the database if you choose to leave out the Database option forDb2stages. If the APT_DBNAME environment variable is not defined as well, the Db2.BDFT...
Datastage dsenv参数TZ=”GMT—8" GMT—8表示的就是北京时间 3.25 DATASTAGE +oracle10g客户端连接windows平台下oracle10G数据库失败,报plug_in初始化失败。 答: 原因:未将ETL账户加入到DBA权限组中.加入以后就解决了。 3.26 在使用Sequence File Stage,,给CHAR型等固定长度的字段赋空值时会报错。 例如在往一个...
To define a loop variable: In theLoop variablesfield, clickAdd loop variable +. Enter the variable name, initial value, SQL type, extended information (if variable contains Unicode data), precision, scale, and an optional description. Variable names must ...
1.2.3Parallel Job中如何使用Project的Environment Variable (1)在Project Properties中设定Environment Variables; (2)在Job Properties的Parameters选项卡中Add Environment Variable即可。也可以先新建Parameter Set,在Parameter Set定义中引用Environment Variable,然后Job引用Parameter Set。
3.1.10 Join Stage 功能说明: 将多个表连接后输出 DataStage EE 开发指南 3.1.11 LookUp Stage 和 Join Stage 的区别 LookUp Stage 将数据读入到内存中,所以效率很高,但是占用了较多的物理 DataStage EE 开发指南 内存。所以当 reference data 比较小的时候,我们推荐用 LookUp Stage;当 reference data 比较大的...
36、ctor 查看日志ControlS toting J ab le$tO1.InfoErwironment variable settings: (.)InfoPaallel iob inrtiatedIrifoPnllel iob default NLS map ASCL_G02312t defau* locale OFFInfomain_piograiic Ascential Data6tage(tm) Enterpnise E dition 7.5l2 (.Infomam_piogrant orchgeneral: loaded(.Info...