创建表
-- 合并行 group_concat(list, separeator ',') drop table if exists table1; create table table1( company_name varchar(20) not null, person_name varchar(20) not null, person_position varchar(20) not null ); insert into table1(company_name, person_name, person_position) values ('bonc','chen','manager'); insert into table1(company_name, person_name, person_position) values ('bonc','yu','manager'); insert into table1(company_name, person_name, person_position) values ('baidu','sun','inv'); insert into table1(company_name, person_name, person_position) values ('baidu','zhou','manager');图示：
合并行
select t.company_name, group_concat(t.name_position separator '||') as name_position from ( -- 合并字段列 concat select company_name, concat(person_name,'@',person_position) as name_position from table1 ) t group by company_name;图示：
