Data Warehousing
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Free Entity Relationship and Relational Schema Diagram Tool

ERDPLUS One tool I generally use when working on a projects, mini tasks and exploration is the ERDPLUS tool . It is quite simple and easy to use. It is a Free tool as well. Below are some diagrams I generated when i first got in contact with with tool. ERD DIAGRAMS: 1. 2.  A

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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)

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Create Oracle Database Table and Specify Some Constraints

The following are the main constraints which can be defined when you are creating a TABLE. I will be using the ORACLE DBMS . Primary key – The primary key of the table to be created. Foreign key – The primary key of some other table which is being referenced in this table to be

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