Question

代码= 00000000005555

第二个选项代码= 00000000000555

嗨我试着找出像php的ltrim（）一样的函数

SELECT * FROM db1.stock JOIN db2.prodinfo ON replace(db2.prodinfo.code,0000000000,'') = replace(db1.stock.code,0000000000,'') WHERE db1.stock.InvNo ='12' and db2.prodinfo.Cat = 'super'

我暂时朗读这个。因为零可能会增加和减少我上面的例子。我只是想在此查询中删除零

感谢

Answer 1

尝试将其转换为数字，

SELECT * 
FROM db1.stock JOIN db2.prodinfo ON 
          CAST(db2.prodinfo.code AS SIGNED) = CAST(db1.stock.code AS SIGNED) 
WHERE db1.stock.InvNo ='12' and db2.prodinfo.Cat = 'super'

或

SELECT * 
FROM db1.stock JOIN db2.prodinfo ON 
CAST(db2.prodinfo.code AS DECIMAL(15,0)) = CAST(db1.stock.code AS AS DECIMAL(15,0)) 
WHERE db1.stock.InvNo ='12' and db2.prodinfo.Cat = 'super'

使用join在mysql字段中删除零

1 个答案: