在Oracle中,CHAR类型的字段值会自动补足空格。所以当其作为条件时,就有可能查不出想要的数据。 如果不允许改DB设计的话,那
在Oracle中,CHAR类型的字段值会自动补足空格。所以当其作为条件时,就有可能查不出想要的数据。
如果不允许改DB设计的话,那就用RTRIM来解决吧。例:
DB:
测试代码:
输出结果(ORACLE):
而MySQL不会自动补足空格,同样的代码也是可以适用的:
输出结果(MySQL):

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