TO_CHAR(date, format):将日期或时间转化为指定格式的字符串。 TO_DATE(string, format):将指定格式的字符串转化为日期。 DATEADD(date, num, unit):在日期上加上或减去指定的时间量。 DATETRUNC(date, unit):将日期截断到指定的时间单位(如年、月、日等)。 LASTDAY(date):返回指定日期所在月份的最后一天。
4、获取上月初及上月最后一天 select concat(to_char(dateadd(getdate(),-1,'mm'),'yyyy-mm'),'-01'); selectlast_day(add_months(FROM_UNIXTIME(UNIX_TIMESTAMP()),-1)); 5、截取时间中的特定值 select to_char(getdate(),'yyyymmddhhmiss'); 年(yyyy) 月(mm) 天(dd) 小时(hh) 分钟(mi) ...
举例:将日期字符串‘ 2020-05-22’ 转换为日期值 to_char函数 AI检测代码解析 返回类型:string 语法:to_char(类型 参数1,类型 参数2); to_char(datetime date, string fromat); 参数解释: 参数1(date):日期 参数2(date):日期格式 用途:将日期date,按照format格式转换为日期字符串 1. 2. 3. 4. 5. ...
2.to_char():将日期转按一定格式换成字符类型 AI检测代码解析 select to_char(sysdate,'yyyy-mm-dd hh24:mi:ss') as nowTime from dual; //日期转化为字符串 select to_char(sysdate,'yyyy') as nowYear from dual; //获取时间的年 select to_char(sysdate,'mm') as nowMonth from dual; //获取...
errMsg:数据源执行SQL失败:INTERNAL: instance:[20220930023439271gjbmxh8a2] failed: ODPS-0130071:[1,429] Semantic analysis exception - function TO_CHAR cannot match any overloaded functions with (STRING, STRING), candidates are STRING TO_CHAR(BIGINT arg0); STRING TO_CHAR(BOOLEAN arg0); STRING TO_...
INTERVAL DAY [(day_precision)] TO SECOND[(fractional_seconds_precision)] bigint 时间间隔无对应数据类型,建议转为秒 RAW(size) RAW,类似于CHAR,声明方式RAW(L),L为长度,以字节为单位,作为数据库列最大2000,作为变量最大32767字节。 string string ...
odps_资料
selectsubstr("abc",1,2);--截取字符串selectsubstr('20200303',1,6)month;selectsubstr(REPLACE('2014-08-31','-',''),1,6);--201408selectTO_CHAR('2019-02-24 22:30:29','yyyymm');--201902selectconcat(split_part('08/30/2020','/',3),split_part('08/30/2020','/',1)...
CreateProjectParma class enhancement Added defaultCtrlService parameter to specify the default control cluster of the project. Fixes UpsertStream NPE Fix: Fixed an issue where an NPE was thrown during flush when a local error occurred, preventing a proper retry. Varchar/Char type fix: Fixed the ...
CHARcharacter VARCHARcharacter BINARYcharacter MAP-unsupport ARRAY-unsupport STRUCT-unsupport BIGINT(64bit) from MaxCompute is stored and calculated as double(64bit) in RODPS. Precision loss might happen when casting BIGINT to double, which shrinks the min/max value could be written back to MaxCo...