Question

我尝试使用记录计数从oracle sql表中获取数据。我试过跟随，

SELECT  *,
        (COUNT(BRAND_ID) AS TOTAL) 
FROM    
(
    SELECT  BRAND_ID, 
            BRAND_CODE,      
            BRAND_TITLE 
    FROM    BRAND 
    WHERE   ACTIVE = '1' 
    ORDER BY BRAND_TITLE ASC 
    OFFSET 10 ROWS 
    FETCH NEXT 10 ROWS ONLY 
) BRAND 
LEFT JOIN 
((
    SELECT  PRODUCT_ID, 
            PRODUCT_SKU_ID, 
            PRODUCT_WEB_ID, 
            PRODUCT_TITLE, 
            PRODUCT_SALES_PRICE, 
            PRODUCT_REGULAR_PRICE, 
            PRODUCT_RATING 
    FROM    PRODUCT 
    WHERE   
    (
        PRODUCT_TYPE='B' 
    OR  PRODUCT_TYPE='R' 
    ) 
    AND AVAILABILITY='1' 
)  PRDUCT ) ON BRAND.BRAND_CODE= PRDUCT.BRAND_CODE

当我执行此操作时，我收到以下错误，

错误：ORA-00923：找不到FROM关键字

我该如何解决这个问题。

提前致谢！

Answer 1

我猜您应该从第一行的*中删除select statement。试试下面的一个。

SELECT  (COUNT(BRAND_ID) AS TOTAL) 
FROM    
(
    SELECT  BRAND_ID, 
            BRAND_CODE,      
            BRAND_TITLE 
    FROM    BRAND 
    WHERE   ACTIVE = '1' 
    ORDER BY BRAND_TITLE ASC 
    OFFSET 10 ROWS 
    FETCH NEXT 10 ROWS ONLY 
) BRAND 
LEFT JOIN 
((
    SELECT  PRODUCT_ID, 
            PRODUCT_SKU_ID, 
            PRODUCT_WEB_ID, 
            PRODUCT_TITLE, 
            PRODUCT_SALES_PRICE, 
            PRODUCT_REGULAR_PRICE, 
            PRODUCT_RATING 
    FROM    PRODUCT 
    WHERE   
    (
        PRODUCT_TYPE='B' 
    OR  PRODUCT_TYPE='R' 
    ) 
    AND AVAILABILITY='1' 
)  PRDUCT ) ON BRAND.BRAND_CODE= PRDUCT.BRAND_CODE

Answer 2

您在select语句中使用了aggreagte函数。因此，您无法简单地为其他列调用Select *。

首先，您应为为easy eas选择的内部列提供别名。
然后选择外部SELECT
由于select中的一列使用了agg功能，因此Group By应该由Select中的其他列完成。

这里为了方便我给列名称为c2，c3 ....重命名就像你想要的那样。如果没有给出别名，您可以指定列的指定。

 SELECT c2,c3,c4,c5,c6,c7,c8,c9,c10,
            COUNT(BRAND_ID) AS TOTAL 
    FROM    
    (
        SELECT  BRAND_ID ,
                BRAND_CODE AS c2,      
                BRAND_TITLE AS c3
        FROM    BRAND 
        WHERE   ACTIVE = '1' 
        ORDER BY BRAND_TITLE ASC 
        OFFSET 10 ROWS 
        FETCH NEXT 10 ROWS ONLY 
    ) BRAND 
    LEFT JOIN 
    ((
        SELECT  PRODUCT_ID AS c4, 
                PRODUCT_SKU_ID AS c5, 
                PRODUCT_WEB_ID AS c6, 
                PRODUCT_TITLE AS c7, 
                PRODUCT_SALES_PRICE AS c8, 
                PRODUCT_REGULAR_PRICE AS c9, 
                PRODUCT_RATING  AS c10
        FROM    PRODUCT 
        WHERE   
        (
            PRODUCT_TYPE='B' 
        OR  PRODUCT_TYPE='R' 
        ) 
        AND AVAILABILITY='1' 
    )  PRDUCT ) ON BRAND.BRAND_CODE= PRDUCT.BRAND_CODE
    Group By c2,c3,c4,c5,c6,c7,c8,c9,c10

Answer 3

我没有12c，所以无法测试，但也许这就是你所追求的？

SELECT  *
FROM    
(
    SELECT  BRAND_ID, 
            BRAND_CODE,      
            BRAND_TITLE 
    FROM    (select b.*,
                    count(brand_id) over () total
             from   BRAND b
    WHERE   ACTIVE = '1' 
    ORDER BY BRAND_TITLE ASC 
    OFFSET 10 ROWS 
    FETCH NEXT 10 ROWS ONLY 
) BRAND 
LEFT JOIN 
((
    SELECT  PRODUCT_ID, 
            PRODUCT_SKU_ID, 
            PRODUCT_WEB_ID, 
            PRODUCT_TITLE, 
            PRODUCT_SALES_PRICE, 
            PRODUCT_REGULAR_PRICE, 
            PRODUCT_RATING 
    FROM    PRODUCT 
    WHERE   
    (
        PRODUCT_TYPE='B' 
    OR  PRODUCT_TYPE='R' 
    ) 
    AND AVAILABILITY='1' 
)  PRDUCT ) ON BRAND.BRAND_CODE= PRDUCT.BRAND_CODE;

在过滤行之前，它使用分析查询来获取整个表中所有brand_id的计数。我不确定你是否想要每个brand_id（count(*) over (partititon by brand_id)或者不同brand_ids（count(distinct brand_id) over ()）的计数，所以你必须使用count函数来获取你得到的结果。

错误：ORA-00923：未找到FROM关键字

3 个答案: