Question

以下查询：

SELECT a.vendor_id, a.crew_type_id, count(a.vendor_id) as `totalVendor` 
FROM tb_vendor_crew_type_details as a
WHERE a.market = 1
  AND a.crew_available > 0 
  AND a.crew_type_id IN (161, 183, 220, 221, 227)
Group by a.vendor_id
Having totalVendor >= 5

抛出错误：

SELECT list is not in GROUP BY clause and contains nonaggregated 
column 'scope_worker_dev.a.crew_type_id' which is not functionally 
dependent on columns in GROUP BY clause; this is incompatible with 
sql_mode=only_full_group_by 0.00037 sec

这可能是什么原因？我在查询中犯了什么错误？

Answer 1

假设根据您的选择陈述

拥有完整的分组

SELECT a.vendor_id,a.crew_type_id,count(a.vendor_id) as `totalVendor` 
FROM tb_vendor_crew_type_details as a WHERE a.market = 1  AND a.crew_available 
> 0 
AND a.crew_type_id 
IN ( 161,183,220,221,227)  Group by a.vendor_id, a.crew_type_id Having totalVendor >=5

Answer 2

在mysql中，如果sql_mode为only_full_group_by，则表示select子句中的列只应包含group by中的列或具有聚合函数的其他列。

就像您的查询和您想要做的一样，应该是这样的：

SELECT a.vendor_id, count(a.vendor_id) as `totalVendor` 
FROM tb_vendor_crew_type_details as a
WHERE a.market = 1 
AND a.crew_available > 0 
AND a.crew_type_id IN ( 161,183,220,221,227) 
Group by a.vendor_id Having totalVendor >= 5

或者使用group_concat在每个小组中连结crew_type_id：

SELECT a.vendor_id, group_concat(a.crew_type_id) as crew_type_ids, count(a.vendor_id) as `totalVendor` 
FROM tb_vendor_crew_type_details as a
WHERE a.market = 1
AND a.crew_available > 0 
AND a.crew_type_id IN ( 161,183,220,221,227) 
Group by a.vendor_id Having totalVendor >= 5

如果crew_type_id对您没有意义且没有修改您的查询，则可以从only_full_group_by删除sql_mode：

set @@global.sql_mode = replace(lower(@@global.sql_mode), 'only_full_group_by', '');

group by语句出错

2 个答案: