The blue up and down arrows on the sorted columns represent the ascending and descending sorts. The numbers 1 and 2 signify the order of the sort, meaning, first sort by the column name, second sort is on the data type. Filtering Columns...
A data dictionary, or metadata repository, as defined in the IBM Dictionary of Computing, is a “centralized repository of information about data such as meaning, relationships to other data, origin, usage, and format.”[1] The term may have one of several closely related meanings pertaining...
SuffixMeaningExample ElementExample Value TH Ordinal Number DDTH 4TH SP Spelled Number DDSP FOUR SPTH or THSP Spelled, ordinal number DDSPTH FOURTH Restrictions: When you add one of these suffixes to a datetime format element, the return value is always in English. ...
A key flexfield represents an intelligent key that uniquely identifies an application entity. Each key flexfield segment has a name you assign, and a set of valid values you specify. Each value has a meaning you also specify. Oracle General Ledger's Accounting Flexfield is an example of a ...
REST and API are both acronyms meaning “REpresentational State Transfer” and “Application Programming Interface” High availability (HA) High availability for ORDS can be ensured with proper planning and architecture. Disruptions and traffic spikes are inevitable, so it’s important to have mitigation...
The alternative to using a NULL is using a value with another meaning—such as 0 for numbers—and then trying to somehow determine whether that value has actually been assigned or simply exists as a replacement for NULL. If you choose not to use NULL values, you’re forcing a value to ...
advantage:understand meaning when you look at the codeing disadvantage:if insert data a large number and you have a lot of work 2.follow the location passing parameterisorder a.if you forget parameter order can usedesckeword. 3.meger passing patameter. ...
Oracle SQL*Plus/iSQL*Plus Oracle TimesTen In-Memory Database Oracle Universal Archive (11g) PeopleSoft Siebel 三.安装要求。 1).单独目录。 2).空间大于150M。 3).如果有老版本的RDA,需要删除所有原有的老版本文件。 4).RDA是通过Perl语言开发的工具,可以使用系统的Perl环境,也可以使用RDA自带的Perl环境...
From the preceding output, INT occupies 3,515 bytes and NUMERIC occupies 6,152 bytes for the same set of values. However, you see the same table size because PostgreSQL is designed such that its own internal natural alignment is 8 bytes, meaning consecutive fixed-length columns of differing ...
Meaning you need ten I/O operations to read them all.This is bad news if you want the query to be as fast as possible. The more disk reads your SQL does, the slower it will be. Even if the rows are cached in memory, accessing ten memory addresses is slower than hitting one....