在oracle9i中,我建立了主键constraint PK_AA primary key (COL_NAME),是否同时已创建COL_NAME的聚集索引,即是否等同于constraint PK_AA primary key (COL_NAME) CLUSTERED?
如果此主键不需要建立COL_NAME的聚集索引,是否只要constraint PK_AA primary key (COL_NAME) UNCLUSTERED?
立马给分
如果此主键不需要建立COL_NAME的聚集索引,是否只要constraint PK_AA primary key (COL_NAME) UNCLUSTERED?
立马给分
http://topic.csdn.net/t/20060819/16/4961330.html
create cluster C_AA(
COL_NAME NVARCHAR2
);
是这样吗