[英]Error SQLCODE -138 when doing a trigger in DB2
I get the following error trying to create a stored procedure in DB2 我在尝试在DB2中创建存储过程时遇到以下错误
Error report:
DB2 SQL error: SQLCODE: -138, SQLSTATE: 22011, SQLERRMC: null
My trigger is the following one: 我的触发器是以下触发器:
CREATE TRIGGER INSERT_SERIALNUMBER
AFTER INSERT ON LASERM
REFERENCING NEW ROW AS NROW
FOR EACH ROW MODE DB2SQL
BEGIN
DECLARE ARTICLECODE CHAR(30);
DECLARE POS INT;
SET POS = LOCATE('-', NROW.PROGRAMNAME);
IF POS > 0 THEN
SET ARTICLECODE = SUBSTR(NROW.PROGRAMNAME, 0, POS);
ELSE
SET ARTICLECODE = NROW.PROGRAMNAME;
END IF;
CALL SP_INSERT_SERIALNUMBER(ARTICLECODE, NROW.PCBCODE);
END
According to the DB2 SQLCodes list, -138 根据DB2 SQLCodes列表,-138
-138 THE SECOND OR THIRD ARGUMENT OF THE SUBSTR OR SUBSTRING FUNCTION IS OUT OF RANGE
What I want to do is to substract a string from another when it finds a "-". 我想做的就是在找到“-”时从另一个字符串中减去一个字符串。 For example, the code is "ART00001-A" and I would like to get just "ART00001". 例如,代码为“ ART00001-A”,而我只想获取“ ART00001”。
I'm not an expert in DB2 SQL syntax, so please,thanks in advance if you see the problem in that code. 我不是DB2 SQL语法方面的专家,因此,如果您看到该代码中的问题,请先感谢。
DB2中的字符串位置是基于一个的,但是您要指示一个从位置0开始的子字符串。只需使用:
SET ARTICLECODE = SUBSTR(NROW.PROGRAMNAME, 1, POS);
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