MySQL和Oracle常用日期轉換函式
阿新 • • 發佈：2019-01-25
MySQL Date/Time to Str（日期/時間轉換為字串）函式：date_format(date,format), time_format(time,format) /*日期轉字串*/ select date_format(JZKSRQ,'%Y-%c-%d %H:%i:%s') 日期 from healthtest.mb_medicalrecord where JZLSH = '20151221003'; select date_format(JZKSRQ,'%Y-%c-%d') 日期 from healthtest.mb_medicalrecord where JZLSH = '20151221003'; select date_format('2008-08-08 22:23:01', '%Y%m%d%H%i%s'); select date_format('2013-11-11 22:23:01','%Y-%c-%d %H:%i:%s'); select date_format('2013-11-11 22:23:01','%Y-%c-%d %h:%i:%s'); select date_format('2013-11-11','%Y-%c-%d %H:%i:%s'); select date_format('2013-11-11','%Y-%c-%d'); MySQL Str to Date （字串轉換為日期）函式：str_to_date(str, format) select str_to_date('08/09/2008', '%m/%d/%Y'); -- 2008-08-09 select str_to_date('08/09/08' , '%m/%d/%y'); -- 2008-08-09 select str_to_date('08.09.2008', '%m.%d.%Y'); -- 2008-08-09 select str_to_date('08:09:30', '%h:%i:%s'); -- 08:09:30 select str_to_date('08.09.2008 08:09:30', '%m.%d.%Y %h:%i:%s'); -- 2008-08-09 08:09:30 /*字串日期*/ select str_to_date('2012-11-13','%Y-%c-%d')日期; select str_to_date('2012-11-13 22:12:13','%Y-%c-%d %H:%i:%s')日期; select str_to_date('2012/11/14','%Y/%c/%d'); Oracle日期轉字串： select * from emp where to_char(hiredate,'yyyy-mm-dd')>'1992-4-7' select create_date from tb_employee t where to_char(create_date,'yyyy-MM-dd')>'2015-06-01' select create_date from tb_employee t where to_char(create_date,'yyyy-MM-dd HH:mm:ss')>'2015-06-01 18:55:00' Oracle字串轉日期 select to_date('2005-10-02,13:25:59','yyyy-mm-dd,hh24:mi:ss') from dual select to_date('2005-10-02','yyyy-mm-dd') from dual
附：一段oralce資料庫在Mybatis中xml的程式碼：
<select id="getPageFilePo" parameterType="page" resultType="com.linkonworks.df.vo.FilePo"> select FILEID "fileid", FILENAME "filename", ADDRESSURL "addressurl", JOBNUM "jobnum", CREATEDATE "createdate", UNIT_CODE "part", STATE "state", STATE "operation" from lkpspf.tb_file where 1=1 <if test=" params.filename != null and params.filename != ''"> and FILENAME like '%${params.filename}%' </if> <if test=" params.flupDateStart1 != null and params.flupDateStart1 != ''"> <!-- and CREATEDATE>=#{params.flupDateStart1} --> and to_char(CREATEDATE,'yyyy-MM-dd')>=#{params.flupDateStart1} </if> <if test=" params.flupDateEnd1 != null and params.flupDateEnd1 != ''"> <!-- and CREATEDATE<=#{params.flupDateEnd1} --> and to_char(CREATEDATE,'yyyy-MM-dd')<=#{params.flupDateEnd1} </if> <if test=" params.unitCode != null and params.unitCode != ''"> <!-- and UNIT_CODE=#{params.unitCode} --> and UNIT_CODE in (#{params.unitCode},'3') </if> <if test=" params.jobnum != null and params.jobnum != ''"> and JOBNUM=#{params.jobnum} </if> <if test=" params.state != null and params.state != ''"> and state=#{params.state} </if> ORDER BY CREATEDATE DESC </select>
