1. A method for in-memory cache data profiling, comprising: executing an Extract Transfer Load (ETL) process in which data is first moved from a source database of a source application to a target database of a target application during which movement the data is extracted from the source database into a persistency comprising a staging area, an alignment area and a preload area, then transformed to a model that is common to both the source and target databases, and finally cleansed and loaded into the target database so as to initially populate a data warehouse; performing baseline data profiling on the extracted data in the persistency during ETL in order to produce baseline data profiling results; and, subsequent to the ETL, receiving in an enterprise service bus (ESB) updates to the source database and placing the updates in a cache memory on the ESB, determining whether multi-record profiling or only single record profiling has been selected for profiling cached updates, on condition that multi-record profiling is selected, performing data profiling on the updates in the cache on the ESB and determining current data profiling results for the cached updates and, comparing the current data profiling results for the cached updates to the baseline data profiling results, but otherwise performing single record profiling on the updates without comparing the current data profiling results for the cached updates to the baseline data profiling results, and triggering an action if a threshold disparity is detected based upon the current data profiling results.