stored-procedures - DB2 - 在存储过程中声明游标

Question

我在 WWW 上找到了这个“DECLARE CURSOR”声明：

CREATE OR REPLACE PROCEDURE "APART21C"."FIND_VALID_ARZTNRN"
(OUT NoOfRows BIGINT)
RESULT SETS 1
LANGUAGE SQL
SPECIFIC SQL140905135133600
BEGIN
  
  DECLARE myARZTNR CHAR(7);
  DECLARE END_TABLE INT DEFAULT 0
  ;
  DELETE FROM APART21C.TMP_LANR07_CHECK
  ;
  DECLARE C1 CURSOR FOR
  SELECT DISTINCT Arztnr 
  FROM APART21C.DMP_LEV_TMP
  ;
  DECLARE CONTINUE HANDLER FOR NOT FOUND
   SET END_TABLE = 1
  ;
  OPEN C1
  ;
  FETCH C1 INTO myARZTNR
  ;
  WHILE END_TABLE = 0 DO
  
        INSERT INTO APART21C.TMP_LANR07_CHECK
        SELECT * FROM TABLE(APART21C.CHECK_ARZTNR_BY_CHECKSUM(myARZTNR)) AS ARZTNRCHECK;
        SET NoOfRows = NoOfRows + 1;
        
        FETCH C1 INTO myARZTNR;
                
  END WHILE
  ;
  CLOSE C1
  ;
END

错误信息是

"DB2 SQL Error: SQLCODE=-104, SQLSTATE=42601, SQLERRMC=<cursor declaration>;;<SQL statement>"

需要你的帮助，请

我是 db2 的初学者，我在 MS SQL Server 方面有更多的经验。语句 " SELECT * FROM TABLE(..." 调用返回表的函数。

Answer 1

下面的代码有问题

为从 APART21C.DMP_LEV_TMP 选择 DISTINCT Arztnr 声明 C1 光标

我已更改如下并执行

DECLARE C1 CURSOR WITH HOLD FOR SELECT Arztnr FROM DMP_LEV_TMP;