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SELECT bi.id, 
       bi.location, 
       bi.expense_group, 
       bi.level, 
       bi.is_active, 
       bi.type, 
       full_name, 
       Sum(DISTINCT bl.amount)                                      AS 
       BudgetAmount, 
       Sum(DISTINCT Ifnull(( bl.amount * 6 ) - ( + bal1.amount + bal2.amount + 
                                                 bal3.amount 
                                                 + bal4.amount + bal5.amount + 
                                                 bal6.amount ), 0)) AS 
       Difference, 
       Sum(DISTINCT Ifnull(Round(( + bal1.amount + bal2.amount + bal3.amount 
                                   + bal4.amount + bal5.amount + bal6.amount ) / 
                                 6), 0) 
       )                                                            AS Average, 
       Sum(DISTINCT bal1.amount)                                    AS BAL1, 
       Sum(DISTINCT bal2.amount)                                    AS BAL2, 
       Sum(DISTINCT bal3.amount)                                    AS BAL3, 
       Sum(DISTINCT bal4.amount)                                    AS BAL4, 
       Sum(DISTINCT bal5.amount)                                    AS BAL5, 
       Sum(DISTINCT bal6.amount)                                    AS BAL6 
FROM   (SELECT * 
        FROM   budget_items 
        WHERE  bi.location IS NOT NULL) AS bi 
       LEFT JOIN budget_lines AS bl 
              ON bi.id = bl.budget_item_id 
                 AND bl.budget_id = 5983 
       LEFT JOIN balance_lines AS bal1 
              ON bi.id = bal1.budget_item_id 
                 AND bal1.balance_id = 28839 
       LEFT JOIN balance_lines AS bal2 
              ON bi.id = bal2.budget_item_id 
                 AND bal2.balance_id = 28633 
       LEFT JOIN balance_lines AS bal3 
              ON bi.id = bal3.budget_item_id 
                 AND bal3.balance_id = 26664 
       LEFT JOIN balance_lines AS bal4 
              ON bi.id = bal4.budget_item_id 
                 AND bal4.balance_id = 14500 
       LEFT JOIN balance_lines AS bal5 
              ON bi.id = bal5.budget_item_id 
                 AND bal5.balance_id = 10199 
       LEFT JOIN balance_lines AS bal6 
              ON bi.id = bal6.budget_item_id 
                 AND bal6.balance_id = 7204 
GROUP  BY bi.id 
ORDER  BY bi.position

ご覧のとおり、実際には 3 つのテーブルしかありませんが、それぞれの残高についてそのうちの 1 つにクエリを実行する必要があります。これには多くの時間がかかります。私の間違いはどこですか？

@Gordon Linoff の投稿に苦労した後、自分で修正しようとしました。@ゴードン・リノフはあなたが何を意味したのですか？

     SELECT bi.id, 
       bi.location, 
       bi.expense_group, 
       bi.level, 
       bi.is_active, 
       bi.type, 
       full_name, 
       (bl.bud_amount) AS BudgetAmount, 
       (coalesce(( bl.bud_amount * 6 ) - (bal.bal_amount1 + bal.bal_amount2 + bal.bal_amount3 + bal.bal_amount4 + bal.bal_amount5 + bal.bal_amount6),
                    0)) AS Difference, 
       (coalesce(Round(( bal.bal_amount1 + bal.bal_amount2 + bal.bal_amount3 + bal.bal_amount4 + bal.bal_amount5 + bal.bal_amount6 ) / 
                                 6), 0) 
           ) AS Average, 
       bal.bal_amount1                                    AS BAL1, 
       bal.bal_amount2                                    AS BAL2, 
       bal.bal_amount3                                    AS BAL3, 
       bal.bal_amount4                                    AS BAL4, 
       bal.bal_amount5                                    AS BAL5, 
       bal.bal_amount6                                    AS BAL6 
FROM (SELECT * 
      FROM   budget_items bi
      WHERE  bi.location IS NOT NULL
     ) AS bi

     LEFT JOIN
     (select budget_item_id, Sum(case when budget_id = 5983 then amount end) AS bud_amount  
     from budget_lines
      group by budget_item_id
    ) AS bl
    on bl.budget_item_id = bi.id

     JOIN
     (select budget_item_id,
             IFNULL(Sum(case when balance_id = 28839 then  amount end), 0) AS bal_amount1, 
             IFNULL(Sum(case when balance_id = 28633 then  amount end), 0) AS bal_amount2, 
             IFNULL(Sum(case when balance_id = 26664 then  amount end), 0) AS bal_amount3, 
             IFNULL(Sum(case when balance_id = 14500 then  amount end), 0) AS bal_amount4,
             IFNULL(Sum(case when balance_id = 10199 then  amount end), 0) AS bal_amount5,
             IFNULL(Sum(case when balance_id = 7204 then  amount end), 0) AS bal_amount6 
      from balance_lines
      group by budget_item_id
    ) AS bal
    on bal.budget_item_id = bi.id
ORDER BY bi.location
4

1 に答える 1

5

いつでもsum(distinct . . . )問題があります。左外部結合でデカルト積を取得しており、同じ量の 2 つの行がある場合、全体的な結果は正確ではありません。

左の外部結合をすべて次のようなサブクエリに置き換えたいと思います。

select budget_item_id,
       Sum(case when budget_id = 5983 then  amount end) AS BAL, 
       Sum(case when budget_id = 28839 then  amount end) AS BAL1, 
       Sum(case when budget_id = 28633 then  amount end) AS BAL2, 
       Sum(case when budget_id = 26664 then  amount end) AS BAL3, 
       Sum(case when budget_id = 14500 then  amount end) AS BAL4,
       Sum(case when budget_id = 10199 then  amount end) AS BAL5,
       Sum(case when budget_id = 7204 then  amount end) AS BAL6 
from balance_lines
group by budget_item_id

残りのクエリを修正します。

ここでは、クエリを記述してみます。これには間違いなく構文エラーがあります。

SELECT bi.id, 
       bi.location, 
       bi.expense_group, 
       bi.level, 
       bi.is_active, 
       bi.type, 
       full_name, 
       (bl.bal) AS BudgetAmount, 
       (coalesce(( bl.bal * 6 ) - (bl.bal1 + bl.bal2 + bl.bal3 + bl.bal4 + bl.bal5 + bl.bal6),
                    0)) AS Difference, 
       (coalesce(Round(( bl.bal1 + bl.bal2 + bl.bal3 + bl.bal4 + bl.bal5 + bl.bal6 ) / 
                                 6), 0) 
           ) AS Average, 
       bl.bal1                                    AS BAL1, 
       bl.bal2                                    AS BAL2, 
       bl.bal3                                    AS BAL3, 
       bl.bal4                                    AS BAL4, 
       bl.bal5                                    AS BAL5, 
       bl.bal6                                    AS BAL6 
FROM (SELECT * 
      FROM   budget_items bi
      WHERE  bi.location IS NOT NULL
     ) bi left outer join
     (select budget_item_id,
             Sum(case when budget_id = 5983 then  amount end) AS BAL, 
             Sum(case when budget_id = 28839 then  amount end) AS BAL1, 
             Sum(case when budget_id = 28633 then  amount end) AS BAL2, 
             Sum(case when budget_id = 26664 then  amount end) AS BAL3, 
             Sum(case when budget_id = 14500 then  amount end) AS BAL4,
             Sum(case when budget_id = 10199 then  amount end) AS BAL5,
             Sum(case when budget_id = 7204 then  amount end) AS BAL6 
      from balance_lines
      group by budget_item_id
    ) bal
    on bal.budget_item_id = bi.id
ORDER  BY bi.position

予算項目テーブルの一意のキーであるとgroup by仮定して、outer を完全に削除したことに注意してください。bi.id

于 2013-01-14T22:58:51.153 に答える