SQL -some reupdated docs for match 243

SQL docs for batch 244

Batch 244 - SQL exercises    Table name is  &...  

Batch 244 - Aggregate functions

Orbitz: https://www.orbitz.com/   1) Ensure that on ori...  

SQL Intro doc

SQL docs - joins and constraints

Tables to be used for 1-3 questions: items_ordered customerid or...  

Batch 243 - SQL Aggregate functions , group by and having

Table Name: World   Column names:   name conti...