- 注意:此问题之前已过于简化;该问题已被追加,以更好地了解我的问题
我有一个公司的货运数据表,名为t_shipment。 (其中一些)标题是acc_num,type_of_business,contract_exception,payment_status等。将复数count()查询结果插入表
我需要为其他部门的工作侧做一个回顾表。所以我使用CREATE TABLE创建了一个新表ship_recap。
CREATE TABLE ship_recap
(vol_lumber(int), vol_oil(int);)
然后我需要回顾从t_shipment到ship_recap的相关数据。我用
INSERT INTO ship_recap (vol_lumber)
SELECT COUNT(acc_num) from t_shipment WHERE type_of_business = 'LMB' and (contract_exception = 'VALID' OR payment_status IS NOT NULL)
INSERT INTO ship_recap (vol_oil)
SELECT COUNT(acc_num) from t_shipment where type_of_business = 'OIL' and (contract_exception = 'VALID' OR payment_status IS NOT NULL);)
它跑,但结果却是:
____________________
|vol_lumber| vol_oil |
----------------------
| 150 | NULL |
| NULL | 230 |
----------------------
而是我想他们是:
____________________
|vol_lumber| vol_oil |
----------------------
| 150 | 230 |
----------------------
我尝试使用
INSERT INTO ship_recap (vol_lumber, vol_oil)
(SELECT COUNT(acc_num) from t_shipment WHERE type_of_business = 'LMB' and (contract_exception = 'VALID' OR payment_status IS NOT NULL),
SELECT COUNT(acc_num) from t_shipment where type_of_business = 'OIL' and (contract_exception = 'VALID' OR payment_status IS NOT NULL);)
而且相同逻辑的排列(例如,改变逗号分号或取出括号),但每次都会返回语法错误。
结果/回顾表可能有多达20个标题,其他查询也可能稍微复杂一点。 我需要一种方法来正确地将SELECT/COUNT-ed数据插入到概括表中,并将它们保存在一行中。
编辑:按照雷诺的建议,我想这
CREATE TABLE ship_recap (vol_OIL int,vol_LUM int,vol_BEV int,processed_OIL int,processed_LUM int,processed_BEV int);
INSERT INTO ship_recap (vol_OIL, vol_LUM, vol_BEV, processed_OIL, processed_LUM, processed_BEV)
SELECT
COUNT(IF(type_of_business = 'OIL' and process_date = '2016-05-12', 1, NULL)),
COUNT(IF(type_of_business = 'LUM' and process_date = '2016-05-12', 1, NULL)),
COUNT(IF(type_of_business = 'BEV' and process_date = '2016-05-12', 1, NULL)),
COUNT(IF(type_of_business = 'OIL' and process_date = '2016-05-12' and (contract_exception = ‘VALID’ OR payment_status IS NOT NULL), 1, NULL)),
COUNT(IF(type_of_business = 'LUM' and process_date = '2016-05-12' and (contract_exception = ‘VALID’ OR payment_status IS NOT NULL), 1, NULL)),
COUNT(IF(type_of_business = 'BEV' and process_date = '2016-05-12' and (contract_exception = ‘VALID’ OR payment_status IS NOT NULL), 1, NULL)) FROM t_shipment;
它的工作,一旦我纠正了缺少的参数和括号。
'SELECT SUM(水果= '苹果')苹果,SUM(水果= '香蕉')香蕉FROM MY_TABLE;'我不知道为什么你会存储这个派生的数据 – Strawberry