Clause to query values in fixed - length fields may not return all expected matches 子句查询固定长度的字段中的值不会返回所有预期的匹配项。
Comparison of fixed - length fields . to resolve this problem , append a percentage wildcard character to the parameter value 若要解决此问题,请在参数值后面追加一个百分号( " % " )通配符(即