Oracle SQL偏移行号

Question

我正在尝试创建一个变量，它可以帮助我查找检查点行，然后查询该检查点之后的行。

起初，我在考虑使用ROWID，但因为ROWID的形式是非整数。这似乎有点不妥。

无论如何，一个必需的过程是创建一个行偏移未在甲骨文方便支持：

我不断收到

ORA-00904：“项目”“ID”：无效的标识符

该变量是来自表ITEM的ID列的Item_ID。

select ITEM.ID,ITEM.CREATEDDATE,ITEM.TYPEID, 
     CAT_DIC_AUTHOR.DISPLAYENTRY, 
     CAT_DIC_PUBLISHER.DISPLAYENTRY, 
     CAT_DIC_KEYWORD.ACCESSENTRY,CAT_DIC_KEYWORD.DISPLAYENTRY, 
     CAT_DIC_LANGUAGE.DISPLAYENTRY,CAT_DIC_LANGUAGE.NAMEVIET, 
     CAT_DIC_SH.DISPLAYENTRY, 
     CAT_DIC_ITEM_TYPE.ACCESSENTRY,CAT_DIC_ITEM_TYPE.TYPENAME 
from (select rownum r,ITEM.ID from ITEM) 

LEFT JOIN ITEM_AUTHOR 
    ON ITEM.ID=ITEM_AUTHOR.ITEMID 
LEFT JOIN CAT_DIC_AUTHOR 
    ON ITEM_AUTHOR.AUTHORID=CAT_DIC_AUTHOR.ID 
LEFT JOIN ITEM_PUBLISHER 
    ON ITEM.ID=ITEM_PUBLISHER.ITEMID 
LEFT JOIN CAT_DIC_PUBLISHER 
    ON ITEM_PUBLISHER.PUBLISHERID=CAT_DIC_PUBLISHER.ID 
LEFT JOIN ITEM_KEYWORD 
    ON ITEM.ID=ITEM_KEYWORD.ITEMID 
LEFT JOIN CAT_DIC_KEYWORD 
    ON ITEM_KEYWORD.KEYWORDID=CAT_DIC_KEYWORD.ID 
LEFT JOIN ITEM_LANGUAGE 
    ON ITEM.ID=ITEM_LANGUAGE.ITEMID 
LEFT JOIN CAT_DIC_LANGUAGE 
    ON ITEM_LANGUAGE.LANGUAGEID=CAT_DIC_LANGUAGE.ID 
LEFT JOIN ITEM_SH 
    ON ITEM.ID=ITEM_SH.ITEMID 
LEFT JOIN CAT_DIC_SH 
    ON ITEM_SH.SHID=CAT_DIC_SH.ID 
LEFT JOIN CAT_DIC_ITEM_TYPE 
    ON ITEM.TYPEID=CAT_DIC_ITEM_TYPE.ID 

where r>100 and r<=200 

Answer 1

尝试如下子查询后添加ITEM字：

select ITEM.ID,ITEM.CREATEDDATE,ITEM.TYPEID, 
     CAT_DIC_AUTHOR.DISPLAYENTRY, 
     CAT_DIC_PUBLISHER.DISPLAYENTRY, 
     CAT_DIC_KEYWORD.ACCESSENTRY,CAT_DIC_KEYWORD.DISPLAYENTRY, 
     CAT_DIC_LANGUAGE.DISPLAYENTRY,CAT_DIC_LANGUAGE.NAMEVIET, 
     CAT_DIC_SH.DISPLAYENTRY, 
     CAT_DIC_ITEM_TYPE.ACCESSENTRY,CAT_DIC_ITEM_TYPE.TYPENAME 
from (select rownum r,ITEM.ID,ITEM.TYPEID, ITEM.CREATEDDATE from ITEM) ITEM 

LEFT JOIN ITEM_AUTHOR 
    ON ITEM.ID=ITEM_AUTHOR.ITEMID 
LEFT JOIN CAT_DIC_AUTHOR 
    ON ITEM_AUTHOR.AUTHORID=CAT_DIC_AUTHOR.ID 
LEFT JOIN ITEM_PUBLISHER 
    ON ITEM.ID=ITEM_PUBLISHER.ITEMID 
LEFT JOIN CAT_DIC_PUBLISHER 
    ON ITEM_PUBLISHER.PUBLISHERID=CAT_DIC_PUBLISHER.ID 
LEFT JOIN ITEM_KEYWORD 
    ON ITEM.ID=ITEM_KEYWORD.ITEMID 
LEFT JOIN CAT_DIC_KEYWORD 
    ON ITEM_KEYWORD.KEYWORDID=CAT_DIC_KEYWORD.ID 
LEFT JOIN ITEM_LANGUAGE 
    ON ITEM.ID=ITEM_LANGUAGE.ITEMID 
LEFT JOIN CAT_DIC_LANGUAGE 
    ON ITEM_LANGUAGE.LANGUAGEID=CAT_DIC_LANGUAGE.ID 
LEFT JOIN ITEM_SH 
    ON ITEM.ID=ITEM_SH.ITEMID 
LEFT JOIN CAT_DIC_SH 
    ON ITEM_SH.SHID=CAT_DIC_SH.ID 
LEFT JOIN CAT_DIC_ITEM_TYPE 
    ON ITEM.TYPEID=CAT_DIC_ITEM_TYPE.ID 
where r>100 and r<=200