Sql insert into语句中不存在具有的子选择

以下几点效果很好：

SELECT ‘K’ CONCAT CHAR(PNR), FIRSTNAME, LASTNAME
FROM S654321.PERSON P 
WHERE NOT EXISTS(SELECT * 
                 FROM S654321.CUSTOMER C 
                 WHERE C.FIRSTNAME = P.FIRSTNAME AND C.LASTNAME = P.LASTNAME)

我想在插入中使用此选择作为子选择：

INSERT INTO S654321.CUSTOMER
VALUES(SELECT ‘K’ CONCAT CHAR(PNR), FIRSTNAME, LASTNAME
       FROM S654321.PERSON P 
       WHERE NOT EXISTS(SELECT * 
                        FROM S654321.CUSTOMER C 
                        WHERE C.FIRSTNAME = P.FIRSTNAME 
                              AND C.LASTNAME = P.LASTNAME))

但这句话行不通

客户具有以下结构：

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• KNR（客户编号）作为varchar在这种情况下不需要使用VALUES语句。试试这个

  INSERT INTO S654321.CUSTOMER (KNR, FIRSTNAME, LASTNAME)
  SELECT ‘K’ CONCAT CHAR(PNR), FIRSTNAME, LASTNAME
     FROM S654321.PERSON P 
     WHERE NOT EXISTS(SELECT * 
                      FROM S654321.CUSTOMER C 
                      WHERE C.FIRSTNAME = P.FIRSTNAME 
                            AND C.LASTNAME = P.LASTNAME)
  

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  由于您没有提供S654321.CUSTOMER的结构，因此很难理解