MySQL语句

SELECT *
FROM 表名
WHERE (字段1 <> "" 字段2 <> "") 
and (字段3 LIKE ‘%参数%‘ OR 字段4 LIKE ‘%参数%‘)

Select COUNT(UM_NAME) FROM user_manager WHERE to_days(UM_CREATETIME) = to_days(now())

SELECT UM_TYPE,COUNT(UM_TYPE) countUmType 
          FROM user_manager 
GROUP BY UM_TYPE 
          HAVING UM_TYPE=1 OR UM_TYPE=4 OR UM_TYPE=5 OR UM_TYPE=6

select COUNT(DISTINCT USER_ID) countUmNumber 
          FROM investment_project 
where to_days(IP_CREATETIME) = to_days(now())    

select
    列名
        from
            表名
    WHERE DATE_FORMAT(列名, ‘%Y-%m-%d‘) >=‘2016-05-09‘
AND DATE_FORMAT(列名, ‘%Y-%m-%d‘) <=‘2016-05-10‘