The important factor that most programmers forget is that every program/query/script is running in the context of some Operating System and these Operating Systems are further running in the context of a processor and RAM.
The processor, while very fast, is consumed with many different actions happening to handle multitasking loads, and thus cannot dedicate a large percentage of its cycles to updating a clock.
This is because in these tablespace types, extent sizes are fixed and the default storage setting of the tablespaces is not ignored.
Updating large value data types
This ensures that there is no storage loss of character data in a varying-width format.
Also note the following if you are using LOBs to store varying-width character data: instances used in OCI (Oracle Call Interface), or any of the programmatic environments that access OCI functionality, character set conversions are implicitly performed when translating from one character set to another.
If you try to create a LOB segment in a permanent dictionary managed tablespace with initial = 2 blocks, then it will still work because it is possible for segments in permanent dictionary managed tablespaces to override the default storage setting of the tablespaces.
But if uniform locally managed tablespaces or dictionary managed tablespaces of the temporary type, or locally managed temporary tablespaces have an extent size of 2 blocks, then LOB segments cannot be created in these tablespaces.
This document describes the operation model for the protocol, specifying the interactions between clients and servers for retrieving and manipulating data in an OData service.
It builds on the [OData-Core] document for core concepts, [OData-URI] for URI conventions and on the formats specifications for Atom [OData-Atom] and JSON [OData-JSON] for the description of data representations.
There is a general misconception, that is common across many different programming/scripting languages, regarding Date/Time data types, their precision, and how this differs in theory versus practice.
For the sake of this article, I will be discussing the following data types: DATETIME in T-SQL, DATETIME2(7) in T-SQL, and Date Time in C#. When viewing the information presented above, the natural assumption is that each of these data types will give you a unique value at intervals of their precision.
The way processors get around this issue is by updating a portion of memory with the current date and time, at some predetermined interval.
The Operating System exposes this data through any one of several counters.
The first step in creating and using a database is to establish its structure.