Question

如果我通过TADOCommand.execute发送此SQL语句：

WITH tab_temp
     AS (SELECT 1 AS id, 'trl' AS cd_used FROM DUAL
         UNION ALL
         SELECT 1 AS id, 'upf' AS cd_used FROM DUAL
         UNION ALL
         SELECT 2 AS id, 'upf' AS cd_used FROM DUAL
         UNION ALL
         SELECT 3 AS id, 'trl' AS cd_used FROM DUAL
         UNION ALL
         SELECT 3 AS id, 'trl' AS cd_used FROM DUAL)
  SELECT t.id,
         LISTAGG (t.cd_used, '') WITHIN GROUP (ORDER BY t.cd_used DESC)
            "cd_used"
    FROM (SELECT DISTINCT
                 id,
                 CASE
                    WHEN COUNT (DISTINCT cd_used) OVER (PARTITION BY id) = 1
                    THEN
                       cd_used || 'Only'
                    ELSE
                       cd_used
                 END
                    cd_used
            FROM tab_temp) t
GROUP BY t.id;

它说：

CREATE TABLE Spice ( MODEL TEXT NOT NULL, PART TEXT NOT NULL PRIMARY KEY, SECTION TEXT NOT NULL, FOOTPRINT TEXT NOT NULL, NODELIST TEXT NOT NULL );

但如果我将SECTION重命名为SECTION2，它就可以了。我试着引用它＆＃34; SECTION＆＃34;和＆＃39;部分＆＃39;但它出现在名称中。我应该以某种方式定义引号或转义字符？我使用MS Access，我可以创建一个名为SECTION的字段！

Answer 1

以下对我来说很好：

  AdoCommand1.CommandText :=
  'CREATE TABLE Spice ( MODEL TEXT NOT NULL, PART TEXT NOT NULL PRIMARY KEY, [SECTION] TEXT NOT NULL, FOOTPRINT TEXT NOT NULL, NODELIST TEXT NOT NULL );';
  AdoCommand1.Execute;

请注意SECTION周围的方括号，这可以避免在大多数情况下SQL关键字和对象名称之间发生冲突。

Answer 2

Section是SQL中的保留字，因此您不应该使用它来命名对象。有关单词的完整列表，请参阅以下链接。

https://msdn.microsoft.com/en-us/library/ms189822.aspx

如何在MS Access中创建名为SECTION的数据库表字段？

2 个答案: