Oracle added several enhancements to the sequence object in version 12c, including an “identity” column feature. Jonathan Lewis explains how to work with these new features. … Read more
Creating ETL process can pose so many challenges we will only fully discover them when really building the ETL. Before you complain about modelling, the example here has no relation to data warehouse modelling. The ETL in question was a migration from a data source to another. The need for executing multiple times was mainly … Read more
This article discusses three common problems DBAs are likely to encounter when columns have an identity property that will auto-increment its value when data is inserted. These problems are humorously referred to as the identity crisis.
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