Here is the step-by-step process of building a data catalog.Accessing and Indexing Metadata of DatabasesThe first step for building a data catalog is collecting the data’s metadata. The catalog crawls the company’s databases and brings the metadata (not the actual data) to the data catalog. Data catalogs then use this metadata to identify the data tables, the columns of the tables, files, and databases.Profiling to See the Data StatisticsThe next step is to profile the data to help data consumers view and understand the data quickly. These profiles are informative summaries that explain the data. For example, the profile of a database often includes the number of tables, files, row counts, etc. For a table, the profile may include column description, top values in a column, null count of a column, distinct count, maximum value, minimum value, and much more.Building or Loading Existing Business GlossaryThe third step is to build a business glossary or upload an existing one into the dat...
