Question

我遇到了一些麻烦，在网上搜索时找不到合适的答案。我正在使用oracle apex 5.1.3，我正在写一些plsql用于全文搜索的报告，但似乎无法应用得分，我知道我犯了一个金发的错误，但我知道基本查询有效。

这是我的原始查询

SELECT VENUE_NAME, CITY, POSTCODE, score(1) + score(2) as score
FROM GAMEVENUE
WHERE
(
CONTAINS(VENUE_NAME, '$FUZZY(plymouth)', 1) > 0 
OR CONTAINS(CITY, '$FUZZY(plymouth)', 2) > 0 
OR CONTAINS(POSTCODE, 'plymouth') > 0
)
ORDER BY score DESC;

这就是问题所在，任何帮助都会很棒。

解析返回的查询结果为“ORA-06550：第9行，第11列：ORA-29908：缺少辅助运算符的主要调用”。如果您认为您的查询在语法上是正确的，请选中下面的“使用通用列名称”复选框以继续操作而不进行解析。

DECLARE

  l_query VARCHAR2 (4096);

BEGIN

  l_query := '
                select 
                "VENUE_ID",
                "VENUE_NAME",
                "CITY",
                "VENUE_NO",
                "POSTCODE",
                dbms_lob.getlength("THUMBNAIL") "THUMBNAIL",
                score(1) + score(2) as score
                 FROM   "GAMEVENUE" i';

  IF v('P2_REPORT_SEARCH') IS NOT NULL THEN
    l_query := l_query||' '||'
    where 
    (   
 contains(VENUE_NAME, ''$fuzzy('|| v('P2_REPORT_SEARCH') ||'), 1'') > 0 or
 contains(CITY, ''$fuzzy('|| v('P2_REPORT_SEARCH') ||'), 2'') > 0 or
 contains(POSTCODE, '''|| v('P2_REPORT_SEARCH') ||''') > 0 
    )
   ORDER BY score DESC';
  END IF;

  RETURN l_query;

END;

Answer 1

ORA-29908: missing primary invocation for ancillary operator

表示您实际上正在运行如下查询：

select 
            "VENUE_ID",
            "VENUE_NAME",
            "CITY",
            "VENUE_NO",
            "POSTCODE",
            dbms_lob.getlength("THUMBNAIL") "THUMBNAIL",
            score(1) + score(2) as score
             FROM   "GAMEVENUE" i

换句话说，您错过了WHERE子句，可能是因为这个IF语句：

IF v('P2_REPORT_SEARCH') IS NOT NULL THEN
  l_query := l_query||' '||'
  where ...

您可能想要做的是，如果没有添加where子句，请避免调用score()，例如

if v('P2_REPORT_SEARCH') is not null then
   l_selectscore := 'score(1) + score(2)';
else
   l_selectscore := 'null';
end if;

l_query := '
            select 
            "VENUE_ID",
            "VENUE_NAME",
            "CITY",
            "VENUE_NO",
            "POSTCODE",
            dbms_lob.getlength("THUMBNAIL") "THUMBNAIL",
            ' || l_select_score || ' as score
             FROM   "GAMEVENUE" i';

Apex报告全文搜索无法应用评分

1 个答案: