Unix时间戳记是从'1970-01-01 00:00:00'GMT开始的秒数,表现为整数型. Oracle中的时间是Date型,以下函数提供了两种时间转换的Oracle函数 (1)从Unix时间戳记转换为Oracle时间 create or replace function unix_to_oracle(in_number NUMBER) return date is begin return(TO_DATE('19700101','yyyymmdd') + in_number/86400 +
查询某一具体时间某张表的数据,可以用时间戳进行查询. 例如: SELECT * FROM sac14 AS OF TIMESTAMP to_date('201508310930','yyyymmddhh24mi') WHERE aac001 = 1000586047; 查询201508310930 这个时间点的数据. 当然也有更简单的方法,比如查询一个小时之前的数据, SELECT * FROM sac14 AS OF TIMESTAMP SYSDATE-1/24 WHERE aac001 =
oracle 将当前系统时间戳插入timestamp字段 --insert records 精确到秒:insert into userlogin_his(usrname,logintime) values('test',to_timestamp(to_char(sysdate,'YYYY-MM-DD HH24:MI:SS'),'YYYY-MM-DD HH24:MI:SS')); 精确到毫秒:insert into userlogin_his(usrname,logintime) values('
linux 时间戳 转date: 创建自定义函数: create or replace function unix_to_oracle(in_number number) return date is begin ,))); end unix_to_oracle; 使用: ) from dual; date 转linux时间戳: create or replace function oracle_to_unix(in_date in date) return number is
CREATE OR REPLACE VIEW PDAORDER AS SELECT po.id id, po.order_no AS order_no, po.money AS money, (SELECT TO_CHAR(t.starttime / (1000 * 60 * 60 * 24) + TO_DATE('1970-01-01', 'YYYY-MM-DD'), 'YYYY-MM-DD') as starttime FROM Pda_Order t WHERE t.id = po.id)