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select * from t_user where user_name like CONCAT('%',#{search_name},'%') select * from t_user where user_name like '%'||#{search_name}||'%' select * from t_user where user_name like CONCAT('%',#{search_name},'%') select * from t_user where user_name like '%'+#{search_name}+'%' select * from t_user where user_name like CONCAT('%',#{search_name},'%') select * from t_user where user_name like '%'||#{search_name}||'%'
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