保留关键字为YashanDB所使用语法关键字的子集，相比普通的关键字，保留关键字不被允许作为名称标识符（例如表名称、列名称等），除非对其使用双引号。

通过查询V$RESERVED_WORDS视图可获得YashanDB所有的关键字信息。

A-G

ACCESS ADD ALL ALTER ANALYZE AND ANY AS ASC AUDIT

BETWEEN

CASE CHAR CHECK COLUMN COMMENT COMPRESS CONNECT CONNECT_BY_ISCYCLE CONNECT_BY_ISLEAF CONNECT_BY_ROOT CONSTRAINT CONSTRAINTS CREATE CURRENT

DATE DECIMAL DEFAULT DELETE DESC DISTINCT DROP

ELSE EXISTS

FALSE FLOAT FOR FROM

GRANT GROUP

H-N

HAVING HORDER

IDENTIFIED IF IMMEDIATE IN INCLUDE INCREMENT INDEX INSERT INTEGER INTERSECT INTO IS

LEVEL LIKE

MINUS MODIFY

NOAUDIT NOCOMPRESS NOT NOWAIT NULL NUMBER

O-T

OF OFFLINE ON ONLINE OR ORDER

PRIOR PUBLIC

RAW RENAME REVOKE RLIKE ROW ROWS

SELECT SELECTIVITY SESSION SET SMALLINT START SUCCESSFUL SYNONYM SYSDATE

TABLE THEN TO TRIGGER TRUE

U-Z

UNION UNIQUE UPDATE USER

VALIDATE VALUES VARCHAR VARCHAR2 VIEW

WHEN WHENEVER WHERE WITH WITHOUT

ZORDER