2020-02-16 标签:sqlserver,聚集,索引,实例,create,database,myindexdemo,go,use,table,abc,a,int,n,ot,ull,b,char,10

create database myIndexDemo go use myIndexDemo go create table ABC ( A int not null, B char(10), C varchar(10) ) go insert into ABC select 1,'B','C' u