SQL Guide : Getting started with SQL : Summary
  
Summary
This brief introduction to SQL and relational databases has explained the concepts that you need to start using SQL. You should now be able to answer the following questions:
What are tables, rows, and columns?
How do I create a table?
How do I put data into a table?
How do I update data in a table?
How do I delete data from a table?
How do I list data in a table?
How do I list related data in two different tables?
How do I ensure that multiple statements are executed together (so that all fail or all succeed as a group)?
See also
Getting started with SQL