Time ismeasured since the beginning of the epoch, which is operating system specific,and wraps around to 0 again whenever the value overflows four bytes (roughly497 days). 这段描述说明 V$TIMER 记录的是厘秒,从 epoch 时间起点量度,这个值来自操作系统,由于在数据库中使用 4 bytes 记录,当主机连续...
The Oracle Provider for OLE DB can be installed in a Multiple Oracle Home environment beginning with Oracle Database 10g. However, because the Oracle Provider for OLE DB is a COM component, only one instance can be active at a time. This means that a later OLE DB installation will render...
This call may be made only once per field, but may return multiple rows. A null LOW_DATE is treated as the beginning of time; a null HIGH_DATE is treated as the end of time. Use NVL in your SQL statement if this is not the desired behavior. ...
first_day (timestamptz) this_month (timestamptz) this_quarter (timestamptz) this_week (timestamptz)
Starting with Oracle Database 10gRelease 1 (10.1), APIs that write to aCLOBorNCLOBwill cause errorORA-22831when the offset specified for the beginning of the write is not on a character boundary in the existingLOBdata. LOBAPIs use UCS2 codepoint semantics for the amount and offset parameters...
FEATURES Ora2Pg consist of a Perl script (ora2pg) and a Perl module (Ora2Pg.pm), the only thing you have to modify is the configuration file ora2pg.conf by setting the DSN to the Oracle database and optionally the name of a schema. Once that's done you just have to set the ...
Calendar, RichTextEditor, and PanelCollection's toolbar icon selectors When skinning icons and images, a '/' at the beginning of the url means context-relative, and a '//' means server-relative. http://myfaces.apache.org/trinidad/devguide/skinning.html#urls However, for the calendar tool...
History of the Solar System from The "Mayan Factor" Our solar system's orbit through the Milky Way takes the Earth through cyclical ages. The ages or baktuns are arranged in the image, a new golden age is forecast in the time of the now beginning Aquarian age. ...
Oracle Primavera P6是一款非常好用且功能强大的综合的项目管理软件解决方案,他结合了Oracle和Microsoft SQL Server关系数据库,具有进度时间安排与资源控制功能的多用户、多项目系统,支持多层项目分层结构、角色与技能导向的资源安排、记录实际数据、自定义视图以及自定义数据等功能特点,可以实现庞大而复杂的时间表。
For a summary of new Oracle Application Express release 4.2 features, see "Changes in This Release" in the beginning of each document in the Oracle Application Express release 4.2 documentation library. This document contains these topics: