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mysql批量更新数据解决思路

Jun 13, 2016 pm 01:38 PM
current declare function set varchar

mysql批量更新数据
我的数据库有个YDD字段,字段里的值都是类似:5456淮南小区
我想把字段里的数字在mysql里给批量过滤掉
请问怎么实现呀?

------解决方案--------------------
第一次写mysql function,献给楼主你啦~ 很笨的方法实现的

SQL code
SET GLOBAL log_bin_trust_function_creators=TRUE;
DROP FUNCTION IF EXISTS num_fiter;
CREATE FUNCTION num_fiter(input varchar(255))  RETURNS VARCHAR(255)
BEGIN
    DECLARE i INT;
    DECLARE length INT;    
    DECLARE current VARCHAR(1);
    DECLARE temp VARCHAR(255);
    SET i=0;
    SET temp='';
    SET length=LENGTH(input);

    WHILE i 
                 
              
              
        
            
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