alter table add 增加多个字段 外键约束 table_user( ( 1 , 1 ) not null , , last_updated_by nvarchar ( 15 ), last_updated_date datetime , constraint user_pk primary key ( user_id )); table_user add department_id ,company_id ,temp_col nvarchar
alter table add 增加多个字段 外键约束
table_user( (1,1) not null, , last_updated_by nvarchar(15), last_updated_date datetime,constraint user_pk primary key (user_id));table_user add department_id ,company_id ,temp_col nvarchar(10);table_user (department_id) references table_department(department_id) ,constraint user_company_fk foreign key(company_id) references table_company(company_id) ;table_user drop column temp_col;
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