Question

早上好！

我正在尝试将两个查询组合成一个表。（请参阅下面的代码）

`CREATE TABLE Layer_Loss
(
    dYear            INT     NOT    NULL,
    EventNum     INT     NOT NULL,
    Loss             INT     NULL,
    Rec_L1           BIGINT  NULL,
    Rec_L2           BIGINT  NULL,
    Rec_L3           BIGINT  NULL,
    Cap_CML_L1   BIGINT  NULL,
    Cap_CML_L2   BIGINT  NULL,
    Cap_CML_L3   BIGINT  NULL,


)
INSERT INTO Layer_Loss (dYear,EventNum, Loss, Rec_L1, Rec_L2, Rec_L3, Capped_CML_L1, Capped_CML_L2, Capped_CML_L3)


WITH c AS (SELECT Row_number() OVER (ORDER BY dYear) AS rownum,* 
    FROM Layer_Loss_Capped2)
SELECT *
    FROM
    (
    SELECT dYear, ROW_NUMBER() OVER (Partition by dYear Order by dYear) as Event_Number, Loss
    , 'Recovery_L1'=CASE
    WHEN Loss<10000000 THEN 0
    WHEN Loss<30000000 THEN 20000000-(30000000-Loss) 
    ELSE 20000000 
    END
    , 'Recovery_L2'=CASE
    WHEN Loss<30000000 THEN 0
    WHEN Loss<60000000 THEN 30000000-(60000000-Loss) 
    ELSE 30000000 
    END
    , 'Recovery_L3'=CASE
    WHEN Loss<60000000 THEN 0
    WHEN Loss<100000000 THEN 40000000-(100000000-Loss) 
    ELSE 40000000 
    END
    , (SELECT *, 'Capped_CML_L1'=CASE 
            WHEN d.CML_L1>40000000 THEN 4000000 
            ELSE d.CML_L1
            END
    , (SELECT *, 'Capped_CML_L2'=CASE 
            WHEN d.CML_L2>60000000 THEN 6000000 
            ELSE d.CML_L1
            END
    , (SELECT *, 'Capped_CML_L3'=CASE 
            WHEN d.CML_L1>80000000 THEN 8000000 
            ELSE d.CML_L1
            END
    FROM
    (
    SELECT a.dYear, a.EventNum, a.Loss, a.Rec_L1, SUM(b.Rec_L1) AS CML_L1, SUM(b.Rec_L2) AS  CML_L2, SUM(b.Rec_L3) as CML_L3
    FROM c a
    LEFT JOIN c b ON a.dYear = b.dYear AND b.rownum <= a.rownum 
    GROUP BY a.dYear, a.rownum, a.EventNum, a.Rec_L1, a.Loss
    ) AS d
    ) AS e
    FROM ['04_AIR_StdHU_DS_noSS_ByTerr$']
    ) AS a

DROP TABLE Layer_Loss`

我有它，以便关于'Recovery_L1'，'Recovery_L2'和'Recovery_L3'的查询是关于表“Layer_Loss”的，我称之为“Rec_L1”，“Rec_L2”和“Rec_L3”。当我尝试添加导致“Capped_CML_L1”，“Capped_CML_L2”和“Capped_CML_L3”的查询时，我收到以下错误：

“Msg 156，Level 15，State 1，Line 14 关键字“WITH”附近的语法不正确。消息319，第15级，状态1，第14行关键字'with'附近的语法不正确。如果此语句是公用表表达式，xmlnamespaces子句或更改跟踪上下文子句，则必须以分号结束前一个语句。“

我已尝试移动'WITH'子句，但结果却相同。

此外，这不是我的最终结果。我的下一步是将前一行中的当前行从“Capped_CML_L1”，“Capped_CML_L2”和“Capped_CML_L3”列中减去称为“Inc_Rec_L1”，“Inc_Rec_L2”和“Inc_Rec_L3”的列。我正在考虑使用光标，但我之前从未使用过光标，所以如果您对此有任何建议，那也会很棒！

感谢您的帮助！

编辑：

`CREATE TABLE Layer_Loss
(
    dYear            INT     NOT    NULL,
    EventNum     INT     NOT NULL,
    Loss             INT     NULL,
    Rec_L1           BIGINT  NULL,
    Rec_L2           BIGINT  NULL,
    Rec_L3           BIGINT  NULL,
    Cap_CML_L1   BIGINT  NULL,
    Cap_CML_L2   BIGINT  NULL,
    Cap_CML_L3   BIGINT  NULL,


)


;WITH c AS (SELECT Row_number() OVER (ORDER BY dYear) AS rownum,* 
    FROM Layer_Loss_Capped2)

INSERT INTO Layer_Loss (dYear,EventNum, Loss, Rec_L1, Rec_L2, Rec_L3, Capped_CML_L1, Capped_CML_L2, Capped_CML_L3)


SELECT *
    FROM
    (
    SELECT dYear, ROW_NUMBER() OVER (Partition by dYear Order by dYear) as Event_Number, Loss
    , 'Recovery_L1'=CASE
    WHEN Loss<10000000 THEN 0
    WHEN Loss<30000000 THEN 20000000-(30000000-Loss) 
    ELSE 20000000 
    END
    , 'Recovery_L2'=CASE
    WHEN Loss<30000000 THEN 0
    WHEN Loss<60000000 THEN 30000000-(60000000-Loss) 
    ELSE 30000000 
    END
    , 'Recovery_L3'=CASE
    WHEN Loss<60000000 THEN 0
    WHEN Loss<100000000 THEN 40000000-(100000000-Loss) 
    ELSE 40000000 
    END
    , (SELECT *, 'Capped_CML_L1'=CASE 
            WHEN d.CML_L1>40000000 THEN 4000000 
            ELSE d.CML_L1
            END
    , (SELECT *, 'Capped_CML_L2'=CASE 
            WHEN d.CML_L2>60000000 THEN 6000000 
            ELSE d.CML_L1
            END
    , (SELECT *, 'Capped_CML_L3'=CASE 
            WHEN d.CML_L1>80000000 THEN 8000000 
            ELSE d.CML_L1
            END
    FROM
    (
    SELECT a.dYear, a.EventNum, a.Loss, a.Rec_L1, SUM(b.Rec_L1) AS CML_L1, SUM(b.Rec_L2) AS  CML_L2, SUM(b.Rec_L3) as CML_L3
    FROM c a
    LEFT JOIN c b ON a.dYear = b.dYear AND b.rownum <= a.rownum 
    GROUP BY a.dYear, a.rownum, a.EventNum, a.Rec_L1, a.Loss
    ) AS d
    FROM ['04_AIR_StdHU_DS_noSS_ByTerr$']
) AS e
) AS f
) AS g
) AS a

DROP TABLE Layer_Loss`

当我输入上面编辑的代码时，我收到错误：消息156，第15级，状态1，第58行关键字“FROM”附近的语法不正确。

我希望稍后可以在另一个查询或表或游标中引用Capped_CML_L1，Capped_CML_L2和Capped_CML_L3。我希望它只是在'e'之下，但我不确定如何使用括号

Answer 1

必须通过;将

WITH与任何前面的命令分开。

当CTE在作为批处理一部分的语句中使用时，其前面的语句必须后跟分号。

此外，它必须是整个陈述的第一部分，无论是普通SELECT还是INSERT。尝试：

/* CREATE TABLE */

;WITH c AS (SELECT Row_number() OVER (ORDER BY dYear) AS rownum,* 
    FROM Layer_Loss_Capped2)
INSERT INTO Layer_Loss (dYear,EventNum, Loss, Rec_L1, Rec_L2, Rec_L3,
                  Capped_CML_L1, Capped_CML_L2, Capped_CML_L3)
SELECT *
    FROM
    (
    SELECT dYear, ROW_NUMBER() OVER ...

（还在WITH之前移动INSERT，意识到正在尝试的内容）

另见Transact SQL Syntax conventions：

; Transact-SQL语句终止符。虽然此版本的SQL Server中的大多数语句不需要分号，但在将来的版本中将需要使用分号。

其中一个主要原因是关键字WITH的预先使用会修改SELECT语句。通过坚持;，它使解析变得更容易。

从两个查询创建表，带有“WITH”子句的错误

1 个答案: