mysql存储过程（自定义函数）1337-Variable or condition declaration after cursor or handler declaration - mysql常见问题

创建mysql自定义函数时，提示错误[Err] 1337 - Variable or condition declaration after cursor or handler declaration

原因：定义变量必须放在游标之前，而我放在了游标后面，所以导致此错误

解决：变量定义放在游标定义之前

#drop function project;

create function project() returns VARCHAR(300)

begin

DECLARE proName VARCHAR(300);

DECLARE proNo VARCHAR(50);

DECLARE s int DEFAULT 0;

DECLARE ProjCRowCur CURSOR FOR select _name,_no from techmanage.tech_project; #我的游标定义在此处

DECLARE CONTINUE HANDLER FOR SQLSTATE '02000' SET s=1;

DECLARE pid int; #错误出现在这里，我把这个变量定义在了游标的后面

OPEN ProjCRowCur;

SET proName='';

SET proNo='';

FETCH ProjCRowCur INTO proName,proNo;

while s<>1 DO

select id INTO pid from techmanage.nodes_hierarchy where name = proName;

IF pid<>null THEN

insert into smart_quality.nodes_hierarchy (name) values (proName);

END IF;

FETCH ProjCRowCur INTO proName,proNo;

END WHILE;

CLOSE ProjCRowCur;

return proName;

end

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