Update plsql_blocks.sql

Add trigger to increment assigned parcels on insert

Add SQL queries for updating, altering, and selecting

Add initial data for Customer, Employee, and more

Update create_tables.sql

Add files via upload

Delete diagrams/Schema_Diagram.png

Delete diagrams/ER_Diagram.png

Add files via upload

Create Schema_Diagram.png

Create ER_Diagram.png

Create plsql_blocks.sql

Delete sql/sql directory

Create plsql_blocks.sql

Create triggers.sql