'Table aliases' diaporamas de présentation

Chapter 5

Chapter 5. Joins and Subqueries. Multiple-Table Queries (1/2).

921 views • 74 slides

F28DM: DATABASE MANAGEMENT SYSTEMS Queries in the Relational Model: SQL

F28DM: DATABASE MANAGEMENT SYSTEMS Queries in the Relational Model: SQL. TOPICS. SQL Basics with single table Multi-table queries Nested queries Aggregate functions Views and security. Employee Tables (From the Company ER diagram ). Employee. Project. Department. WorksOn. Location.

866 views • 71 slides

SQL Best Coding Practice in PeopleTools 7.x

SQL Best Coding Practice in PeopleTools 7.x. David Kurtz Go-Faster Consultancy Ltd. david@go-faster.co.uk www.go-faster.co.uk. Who are you?. Familiar with SQL not necessarily the DBA Might be Application developer Team Leader. So Where is all the SQL?. Views Scrollxxx() PeopleCode

582 views • 44 slides

324 views • 21 slides

Working with Tables: Join, Functions and Grouping

Working with Tables: Join, Functions and Grouping. Dr. Bernard Chen Ph.D. University of Central Arkansas Fall 2008. Group Functions. The group functions perform an operation on a group of rows and return one result. Sum () Finds sum of all values in a column, ignores null values. Avg ()

215 views • 14 slides