1. CS SQL

2. The Structured Query Language (SQL)
Composed of two categories:
Data Definition
create database
create table
drop database
Data Manipulation
used to manipulate the data
select
delete
update

3. Data Definition
CREATE TABLE - allows you to create a table definition in a database
CREATE DATABASE - allows you to create a database
DROP TABLE - removes a table from a database
ALTER TABLE - modifies the definition of a table in a database

4. Create Table Example 1: Example 2: CREATE TABLE CUSTOMER(
LAST_NAME     varchar2(30) not null,
STATE_CD          varchar(2),
SALES                 number);
Example 2:
CREATE TABLE PRODUCTS(
NAME              VARCHAR2(30) NOT NULL,
DESCRIPTION    VARCHAR2(300),
PRICE             NUMBER(4,2) )
TABLESPACE     PRODUCTSPACE
STORAGE(INITIAL 25K NEXT 25K MINEXTENTS 1);

5. Alter Table
Add column ALTER TABLE CUSTOMER ADD TAX_EXEMPT_ID       VARCHAR2(20);
Drop column
ALTER TABLE CUSTOMER
DROP COLUMN SALES;

6. Data Manipulation Language
SELECT - query the database
select * from customer where id > 1001
INSERT - adds new rows to a table.
Insert into customer values (1009, ‘John Doe’)
DELETE - removes a specified row
delete from customer where amount = 100
UPDATE - modifies an existing row
update customers set amount = 10 where id > 1003

7. Select Get all data from table Get column Distribute data from table
SELECT * FROM TABLE
Get column Distribute data from table
SELECT DISTRIBUTE FROM TABLE
Get all data where….
SELECT * FROM TABLE WHERE NAME IS 'BUTCH GREWE'

8. Insert
Add following entry to table…order of data fields MUST be the same as when created table
INSERT INTO TABLE VALUES ('JAMES BOND', '1 EIFFEL TOWER', 'PARIS', 'FRANCE','SPY SOFTWARE')

9. Delete
Remove entries where….
DELETE FROM TABLE WHERE AGE=10

10. Describe
Get meta-data
DESCRIBE  TABLE