data warehousing

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    Entity Relationship Diagram – ERD and Cardinality Symbols Simple Explanations

    Understading cardinality notation and being able to explain them will go a long way in your database design and implementation. Here we look at a simple explanation of the symbols. (Credit to Data Warehousing for Business Intelligence by University of Colorado System on Coursera) Symbols in the above diagram and their meanings: – Oval: means 0 –…

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    Creating Oracle PL/SQL Tables for Intercollegiate Athletic Database – Data Warehousing

    Creating Oracle  tables for Intercollegiate Athletic Database. Part of Assignment one of Data Warehousing for Business Intelligence on Coursera

    After creating the tables lets insert values

      In case you want to change a constraint on a field, you can use a syntax examples as the following. ALTER TABLE FACILITY ADD CONSTRAINT UNQ_FAC UNIQUE (FACNAME)…