oracle 怎么在不用拼接函数的情况下,将两段查询结果拼接成一个 json - V2EX
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SSSLC77
V2EX    Java

oracle 怎么在不用拼接函数的情况下,将两段查询结果拼接成一个 json

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  •   SSSLC77 Aug 17, 2022 1814 views
    This topic created in 1351 days ago, the information mentioned may be changed or developed.

    如题,编译器用的是 plsql,oracle 怎么在不用拼接函数的情况下,将两段查询结果手动拼接成一个 json

    5 replies    2022-08-17 13:46:26 +08:00
    SSSLC77
        1
    SSSLC77  
    OP
       Aug 17, 2022
    有没有熟悉 oracle 的大佬啊,求助
    28Sv0ngQfIE7Yloe
        2
    28Sv0ngQfIE7Yloe  
       Aug 17, 2022 via iPhone
    方便说说为什么不能用拼接函数吗
    OOKAMI
        3
    OOKAMI  
       Aug 17, 2022
    不知道你的两段查询结果是怎么个结构,可以考虑使用 json_object 对查询结果进行转换

    ```
    SELECT json_object('uid' VALUE UID,
    'age' VALUE age,
    'name' VALUE NAME,
    'birthday' VALUE birthday)
    FROM user_table

    UNION

    SELECT json_object('uid' VALUE sys_guid(),
    'age' VALUE 11,
    'name' VALUE 'aaa',
    'birthday' VALUE SYSDATE - 11)
    FROM dual
    UNION
    SELECT json_object('uid' VALUE sys_guid(),
    'age' VALUE 22,
    'name' VALUE 'bbb',
    'birthday' VALUE SYSDATE - 22)
    FROM dual
    ```

    相关资料: https://docs.oracle.com/en/database/oracle/oracle-database/12.2/sqlrf/JSON_OBJECT.html#GUID-1EF347AE-7FDA-4B41-AFE0-DD5A49E8B370
    SSSLC77
        4
    SSSLC77  
    OP
       Aug 17, 2022
    @Morii 一开始想用那个拼接函数的,但供应商说不能这样弄,叫我们手动拼接 json,我也整不明白
    SSSLC77
        5
    SSSLC77  
    OP
       Aug 17, 2022
    @OOKAMI 这个办法是过了,但是我们需要开启一个对外服务的接口,有没有办法将转换后的 json 映射到网页上
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