得到错误（11,5）：PL / SQL：ORA-00932：不一致的数据类型：预期NUMBER得CLOB

Question

这是我程序的片段。 ** Context_value是Clob ** Order_id是int

SELECT 
    company.id,
    total_amount_sum,
    balance_move_sum
FROM company
LEFT JOIN (SELECT SUM(total_amount) total_amount_sum, company_id
           FROM sales
           GROUP BY company_id
           ) sales ON company.id = sales.company_id 
LEFT JOIN (SELECT SUM(balance_move) balance_move_sum, company_id
           FROM moves
           GROUP BY company_id
           ) moves ON company.id = moves.company_id

错误是 错误（11,5）：PL / SQL：忽略SQL语句 错误（11,5）：PL / SQL：ORA-00932：不一致的数据类型：预期NUMBER获得CLOB

Answer 1

您必须使用XMLTYPE（）将context_value转换为数据类型XMLtype，如图所示。

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