informatica tips_1

1.当Informatica的session的错误日志没有产生的可能原因有：

(1).Log directory full

(2).session is invalid

(3).execute permition on the database connection may need to be granted

2.当mapping出错的时候有以下几个定位错误的方法：

(1).Change target writer option from relational to flat file to better identify the problem.

(2).Use the debugger

(3).Use the 'create and add target' option to see output at that point in the mapping.(You can turn any transformation into a target and use the flat file writer to build the output of that transformation)

3.The load type of the target should be set to normal if the target table has keys,indexes defined on it at the physical database. This supplys to oracle tables with keys only.

4.To bulk loading oracle indexed tables choose non-parallel mode and disable the 'enable parallel mode' option in the connection or drop suspend indexes and rebuild them after the bulk loading is complete possiblely in pre-and-post SQL or using an stored procedure
transformation.

5.If you configure the session for roe error logging the Integration Services will write row errors to the error log instead of the session log. If you want the Integration Services to write the drop rows to the session log also can configure the session for
both data tracing