更新Postgres SQL

Question

Postgres sql无法识别B关系。

任何人都知道如何使这个查询有效吗？

UPDATE B SET fator = A.fator
FROM 
(select initial_date, end_date,entity_id, sum(fator) fator
                                from table1 
                                    where initial_date>=(select min(data) from iberia.lcs_wyipi_aux_produtividade_incentivos)
                                                and end_date<=(select max(data) from iberia.lcs_wyipi_aux_produtividade_incentivos)
                            GROUP BY initial_date, end_date, entity_id) A JOIN table2 B on
                                                     A.entity_id=B.entity_id and B.data>=A.initial_date and B.data<=A.end_date

  

[错误]错误：关系“b”不存在   第1行：更新B设置fator = A.fator

Answer 1

如果您要更新table2，则无需将“from”表加入其中。此外，如果在B关键字后面提到表格，则应设置别名UPDATE。

UPDATE table2 as B SET fator = A.fator
FROM (
    select initial_date, end_date,entity_id, sum(fator) fator from table1 
    where initial_date >= ( select min(data) from iberia.lcs_wyipi_aux_produtividade_incentivos )
      and end_date <= ( select max(data) from iberia.lcs_wyipi_aux_produtividade_incentivos )
    GROUP BY initial_date, end_date, entity_id
) as A
where B.entity_id = A.entity_id
  and B.data >= A.initial_date
  and B.data <= A.end_date
;

Answer 2

我不是100％确定这会有效，但我认为如果你将源包装在子查询中，它会做你想要的：

for ( var i = 1; i < 8; i++ ) {
   $( '.row' + i ).mouseenter(function(e){
      $( '.row' + i ).addClass('deepskyblue');
   }).mouseleave(function(e){
      $( '.row' + i ).removeClass('deepskyblue');
   }).on('click',function(e){
      e.preventDefault();
      clickedRow = e.currentTarget.className;
   });

}

唯一担心的是，根据您描述的标准，似乎似乎可能加入的子查询可能会产生您尝试在with A as ( select initial_date, end_date, entity_id, sum(fator) fator from table1 where initial_date >= (select min(data) from iberia.lcs_wyipi_aux_produtividade_incentivos) and end_date <= (select max(data) from iberia.lcs_wyipi_aux_produtividade_incentivos) GROUP BY initial_date, end_date, entity_id ) UPDATE table2 B SET fator = A.fator FROM A where A.entity_id = B.entity_id and B.data between A.initial_date and A.end_date 中更新的多个值。如果不是这样，那应该可行。如果是，您需要一些方法来缩小要更新的记录。