1. Database Access with SQL
Relational Databases consist of tables
SQL provides command based access to information in a table
SQL commands are case-insensitive (case doesn’t matter)
Some tables have a Primary key that will auto-increment when new items are added
Products Categories in a Grocery Store
Products in a Grocery Store
More info at:

2. Basic SQL Queries Selecting column information from a table
SELECT column1, column2....columnN FROM table_name
Selecting column information that meets a condition
SELECT column1, column2....columnN FROM table_name WHERE Item1 = Value1
Selecting column information that meets multiple conditions
SELECT column1, column2....columnN FROM table_name WHERE Item1 = Value1 {AND|OR} Item2 = Value2

3. More SQL Queries Select everything matching a condition
SELECT * FROM table_name WHERE Item1 = Value1
Select items using a wildcard
SELECT * FROM table_name WHERE Title LIKE ‘%match%’
Will match anything containing the string “match”

4. Modifying the Database
Remove (delete) information from a table
DELETE FROM table_name WHERE Item1 = Value1
Insert new items (a row)
INSERT INTO table_name (Item1, Item2, …) VALUES (Value1, Value2, …)
Modify stored data
UPDATE table_name SET Item1=Value1, Item2=Value2 WHERE Item3=Value3…