“Some sectors such as hospitality, aviation, travel and tourism were hit harder than the others. Sectors, such as pharma, FMCG, e-commerce and high-tech have experienced growth”, which is why their hiring plans and salary budgets for 2021 seem positive. At the executive level, the median ...
语法:一、单表查询的语法 SELECT 字段1,字段2... ...10000的岗位名、平均工资 mysql> select post,avg(salary) from employee group by post having avg(salary) > 10000;...10000且小于20000的岗位名、平均工资 mysql> select post,avg(salary) from employee group by post having 10000...