The above mentioned instance maps the identify residence in a very towards the nameLength home in B by converting the string into the size using a change operate. Notice: The example shows a transformation function that is certainly only known as if A.identify has a price. Should the house is null the mapping is skipped.
useMapper: registers a selected mapper occasion that's used to transform referenced Java Bean sorts.
Be aware that with the very first syntax, if you specify REMAP_TABLE=A.B:C, then Import assumes that A is often a schema name, B would be the outdated desk title, and C is the new desk name. To work with the initial syntax to rename a partition that's staying promoted to your nonpartitioned table, you must specify a schema identify.
This Procedure usually takes two fields and performs the mapping by applying a specified function on the supply subject price. The end result is then made use of given that the location area value.
If there is a little insertion within the focus on assembly these types of that a element would remap to 2 places,
assets identify of supply and desired destination field are equal and mappers were registered that can perform the more info mandatory variety conversion (described afterwards).
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When using the set Procedure, it is possible to specify a functionality that provides the value to become established within the spot subject.
To implement the second syntax to rename a partition currently being promoted to a nonpartitioned table, You simply really need to qualify it Together with the aged desk identify. No schema identify is required.
Generics can not be employed with out limits: It is feasible to make a mapper for generic varieties, but because of the class literals made use of when declaring the mapping, the generic sort informations receives lost.
The REMAP_TABLE parameter will not operate if the table staying remapped has named constraints in exactly the same schema as well as constraints need to be designed if the desk is established.
Assuming the sphere names differ but you need to map fields for whose sort conversions a mapper was presently defined, you can sign up the mapper while in the mapping configuration and use it at the side of a reassign operation.