This document contains summaries of several SQL projects and scripts:
1. The Piggy Bank database project involves designing a database to track customer accounts and transactions. Stored procedures allow updating customer information and creating/updating accounts.
2. T-SQL queries were written to retrieve information from a library database such as loans, reservations and overdue books. Joins and UNION queries combine data from multiple tables.
3. A DBA project defines tasks like installing SQL Server, backup/recovery, security management and data transfer. Scripts create backups and snapshots, export/import data between servers using bcp and BULK INSERT.