SQL筆記：對比EXCEL輕鬆學習SQL數據分析第五章-【數據獲取】

#獲取全表
select * from dianjian0629
#獲取指定列
select fen_bu_chang_suo_,shi_fang_ren_,suo_shu_fen_bu_ from dianjian0629
#獲取指定行
select * from dianjian0629 limit 5 #獲取前5行
select * from dianjian0629 limit 2,6 #獲取從2行開始後的6行
#獲取滿足條件的行
select * from dianjian0629 where suo_shu_fen_bu_ = '傳感器管理分部' and shi_fang_ren_ = '吳曉麗'
select * from dianjian0629 where suo_shu_fen_bu_ = '傳感器管理分部' or shi_fang_ren_ = '王帥超'
#添加列
select fen_bu_chang_suo_,shi_fang_ren_,suo_shu_fen_bu_,jin_ji_cheng_dong_shuo_ming_, "急件" as label from dianjian0629 where jin_ji_cheng_dong_shuo_ming_ = '緊急'
#排序 asc升序，desc降序
select * from dianjian0629 order by fen_bu_chang_suo_ asc,cheng_nuo__jiao_qi_ DESC