1. Poor Naming Standards

2. A. Database naming conventions
The following types of database objects are discussed here:
Tables
Columns (incl. Primary, Foreign and Composite Keys)
Indexes
Constraints
Views
Stored Procedures
Triggers

3. ALL DATABASE OBJECTS Limit the name to 30 characters
Use only letters or underscores
Try to use underscore characters as little as possible
Use a letter as the first character of the name
Avoid abbreviations
Avoid acronyms
Makes the name readable
Avoid using spaces in names even if the system allows it

4. 1. TABLES
Rule #1: Plural Names - This rule is applicable because tables are logical collections of one or more entities as records - just like collection classes are logical collections of one or more objects.
Example: Customers instead of Customer
UserRoles instead of UserRole