55. 54
Each of the tables created will contain the additional information related to thetriggers used for data auditing compared to the original
object verification.
56. 55
Database Backup and Revision
Due to a system error I had to uninstall postgres server and reinstall the server. As result I had to back up the entire library database
using PgAdmin 111 application which the task easier to conduct
58. 57
Once the database has been restored, I continued working on the database development and made few adjustments. A new column
catalog_id was added to referenced back to BookCatalog table. This will make it easier to know the number of books available in the
inventory by catalog_id number. Library_ID column was added to BookCatalog table. This will make it easier for each library to
maintain their own catalog. Finally the RentalsCheckout table a new column catalog_id was added to aid employees determine the
type of books processed.
76. 75
Objects Verification
In the following demonstrations I would use Sybase Central to view each objects definition and later use the system stored procedure to display the same information in non-graphical format
using Sybase interactive SQL
78. 77
In the following demonstration below I would use the system stored procedure to retrieve the table structures relating to specific tables in the database which is equivalent to Oracle select * from user_tables where
table_name = customer ,SQL Server sp_hep procedure like Exec sp_help ‘customer’,PostgreSQL d table_name+, Oracle and MYSQL Describe Object_Name for examples