在 oracle merge/insert 命令期间列名 CLUSTER & COMMENT 出现问题

Question

我有一个 table，其中两列具有名为 CLUSTER & COMMENT 的 oracle 保留关键字。我正在尝试使用 spring JDBC 中的合并命令，该命令抛出以下错误。

ORA-01747: 无效 user.table.column、table.column 或列规范

MERGE INTO TABLE DESTINATION 
USING ( SELECT  ? AS NAME, ? AS CLUSTER, ? AS COMMENT FROM DUAL) SOURCE 
ON (SOURCE.NAME = DESTINATION.NAME) 
WHEN MATCHED THEN 
UPDATE SET DESTINATION.CLUSTER = SOURCE.CLUSTER, DESTINATION.COMMENT = SOURCE.COMMENT
WHEN NOT MATCHED THEN 
INSERT (NAME, CLUSTER, COMMENT) 
VALUES (SOURCE.NAME, SOURCE.CLUSTER,SOURCE.COMMENT)

有人能帮我解决这个问题而不更改列名吗？

Answer 1

如果您打算使用 reserved words 作为标识符，那么您需要使用带引号的标识符（以及数据库中使用的确切大小写）：

MERGE INTO table_name DESTINATION 
USING (
  SELECT ? AS NAME,
         ? AS "CLUSTER",
         ? AS "COMMENT"
  FROM   DUAL
) SOURCE 
ON (SOURCE.NAME = DESTINATION.NAME) 
WHEN MATCHED THEN 
  UPDATE
  SET DESTINATION."CLUSTER" = SOURCE."CLUSTER",
      DESTINATION."COMMENT" = SOURCE."COMMENT"
WHEN NOT MATCHED THEN 
  INSERT (NAME, "CLUSTER", "COMMENT")
  VALUES (SOURCE.NAME, SOURCE."CLUSTER",SOURCE."COMMENT");

但是，更好的解决方案是将标识符更改为非保留字。

db<>fiddle here

在 oracle merge/insert 命令期间列名 CLUSTER & COMMENT 出现问题

Issue with column names CLUSTER & COMMENT during merge/insert command in oracle

oracle

spring

spring-jdbc

oracle11g