今天发现了一个显示ORACLE语法的好网站。内容太多，就不一一摘录了，记在这里，也方便自己查找。
http://www.ss64.com/ora/
目录如下：
An A-Z Index of Oracle SQL Commands (version 9.2)
ANALYZE
AUDIT
CALL
Cluster - CREATE CLUSTER
- ALTER CLUSTER
- DROP CLUSTER
COMMENT
COMMIT
CONNECT
CONSTRAINT - Add / Enable
Context - CREATE CONTEXT
- DROP CONTEXT
Controlfile - CREATE CONTROLFILE
Database - CREATE DATABASE
- ALTER DATABASE
DELETE
DESCRIBE
Dimension - CREATE DIMENSION
- ALTER DIMENSION
- DROP DIMENSION
Directory - CREATE DIRECTORY
- DROP DIRECTORY
EXEC
EXECUTE IMMEDIATE
EXPLAIN PLAN
Function - CREATE FUNCTION
- ALTER FUNCTION
- DROP FUNCTION
GRANT
Index - CREATE INDEX
- ALTER INDEX
- DROP INDEX
Indextype - CREATE INDEXTYPE
- DROP INDEXTYPE
INSERT
INTERSECT
Java - CREATE JAVA
- ALTER JAVA
- DROP JAVA
Library - CREATE LIBRARY
- DROP LIBRARY
Link - CREATE DATABASE LINK
- DROP DATABASE LINK
LOCK TABLE
Mview - CREATE MATERIALIZED VIEW
- ALTER MATERIALIZED VIEW
- DROP MATERIALIZED VIEW
- CREATE MATERIALIZED VIEW LOG
- ALTER MATERIALIZED VIEW LOG
- DROP MATERIALIZED VIEW LOG
MINUS
NOAUDIT
Operator - CREATE OPERATOR
- DROP OPERATOR
Outline - CREATE OUTLINE
- ALTER OUTLINE
- DROP OUTLINE
Package - CREATE PACKAGE/BODY
- ALTER PACKAGE
- DROP PACKAGE
Pfile - CREATE PFILE
Procedure - CREATE PROCEDURE
- ALTER PROCEDURE
- DROP PROCEDURE
Profile - CREATE PROFILE
- ALTER PROFILE
- DROP PROFILE
RECOVER
RENAME
Resource - ALTER RESOURCE COST
REVOKE
RMAN - Recovery Manager
Role - CREATE ROLE
- SET ROLE
- ALTER ROLE
- DROP ROLE
ROLLBACK
Rollback - CREATE ROLLBACK SEGMENT
- ALTER ROLLBACK SEGMENT
- DROP ROLLBACK SEGMENT
SAVEPOINT
Schema - CREATE SCHEMA
SELECT
Sequence - CREATE SEQUENCE