Are you looking for an answer to the topic “chronological key in obiee“? We answer all your questions at the website vi-magento.com in category: https://vi-magento.com/chia-se. You will find the answer right below.
- At-least one level of time dimension should have chronological key.
- In any number of levels you can define one or more number of chronological keys.
- Defining at lowest level is the best practice. …
- If the key is structured as YYYYMMDD, you can use it as a chronological key. …
- Date specific functions like AGO, TODATE, PERIODROLLING etc. …
Contents
OBIEE Dimension and Hierarchies
How does obiee time-series work?
All that OBIEE’s Time-series need to work is a pure sequence, or in Oracle’s words: Sequence numbers are enumerations of time dimensional members at a certain level. The enumeration must be dense (no gaps) and must correspond to a real time order. For example, months in a year can be enumerated from 1 to 12.
What is time series in obiee?
Time series functions in OBIEE. The implementation of the time serie function is based on the time dimension. ( See set up time dimensions ) At query time, the Oracle BI Server then generates SQL that pushes the time offset processing down to the database whenever possible.
Does OBI EE support time-series queries?
Taking a look through the OBI EE documentation, it appears there is some basic support for time-series queries, in the form of AGO and TODATE. AGO gives you, for example, the value of sales one month ago or one quarter ago, whilst TODATE gives you the total of sales month-to-date, or quarter-to-date, or year-to-date.
How do time series functions work?
Time series functions operate on time-oriented dimensions. To use time series functions on a particular dimension, you have to designate the dimension as a Time dimension and set one or more keys at one or more levels as chronological keys.
What is period rolling in obiee 11g?
Period rolling a new feature present in OBIEE 11g: Period rolling is the time series function which is used to calculate the revenue over the period for months and year from starting year or month and ending period or month. Interval of calculation of the measure.
What is the Order of the chronological keys in the key?
The ORDER BY clause on the chronological key must reflect the real world chronological order of the time dimension members represented by the key. For example, if the time dimension members are: Jan-3-2013, Jan-4-2013, Jan-5-2013 then the following chronological keys can be assigned to them in the same order: 1, 5, 9.
What is chronological order?
Chronological order is the order in which the events occurred, from first to last. This is the easiest pattern to write and to follow. Which of these is in the correct chronological order beginning of civilizations?
What is the chronological order of the books of the Bible?
There is no standard chronological order for the books of the Bible. They are not listed in order of their creation, but by the most likely dates. For example, the Book of Ruth was written around 1030 B.C., while the Book of Job was written about seven centuries later. Proverbs was written about six centuries before Isaiah.
What is the Order of the Old Testament in order?
The Old Testament is arranged chronologically into eleven books, each with its own chronological order. The first and second Kings are the Old Testament chronological narratives. They trace the history of Israel and Judah. These books also give more detail on Solomon, the king of the United Kingdom.
What is Order_of_key () function in C++?
The order_of_key () is a builtin function of Ordered Set which is a Policy Based Data Structure in C++. Policy-based data structures are not part of the C++ standard library but g++ compiler supports them. Ordered set is a policy based data structure in g++ that keeps the unique elements in sorted order.
What is the chronological key in Oracle BI server?
The Oracle BI Server uses the chronological key to create mathematically correct time series predictions, such as Jan + 2 months = Mar. You should set a chronological key for every level, except for the Grand Total level, so that you can perform time series operations on all levels with good performance.
What is the Order of the chronological keys in the key?
The ORDER BY clause on the chronological key must reflect the real world chronological order of the time dimension members represented by the key. For example, if the time dimension members are: Jan-3-2013, Jan-4-2013, Jan-5-2013 then the following chronological keys can be assigned to them in the same order: 1, 5, 9.
What are the requirements for chronological keys in SQL Server?
The chronological keys must be comparable with the standard SQL ORDER BY clause. The ORDER BY clause on the chronological key must reflect the real world chronological order of the time dimension members represented by the key.
How to add chronological key columns in SQL?
all the time columns in your logical sql belongs to the right level of hierarchy. For instance, even if the week number is not the chronological key, the column must be in the week level of the time dimension. First, you have to check the Time Dimension check box. Then you have to choose the chronological keys column as show the above table.
How to use time series conversion functions in Oracle BI server?
Oracle BI Server ships Time Series Conversion Functions : AGO and TODATE . They are supported for all relational database and for use with Essbase. They are not support for flat files. To use them on a particular dimension, you have to designate the dimension as a Time Dimension and set one or more keys at one or more levels as Chronological keys.
What are time dimensions and chronological keys?
Time dimensions and chronological keys. You can identify a dimension as a time dimension. At least one level of a time dimension must have a chronological key. The following is a list of some guidelines you should use when setting up and using time dimensions:
in the case of time dimension there needs to be a particular order for all the values present in it. e.g. 2010 is earliest and 2004 is older. Dec-10 is earliest and jan-10 is older. i.e. the values in the time dimensiion needs to follow a particular sorting order. So the chronological key is the key which tells the obiee that the data is …
How many levels of time dimension must have a chronological key?
At least one level of a time dimension must have a chronological key. See “Selecting and Sorting Chronological Keys in a Time Dimension” for more information.
What are the guidelines for setting up and using time dimensions?
At least one level of a time dimension must have a chronological key. The following is a list of some guidelines you should use when setting up and using time dimensions: At least one level of a time dimension must have a chronological key. See “Selecting and Sorting Chronological Keys in a Time Dimension” for more information.
How to create a time dimension in Revit?
For a dimension to be recognized as a time dimension, you must select Time on the General tab of the Dimension dialog. Double-click a logical level below the Grand Total level. In the Logical Level dialog, click the Keys tab. To select a chronological key, in the Keys tab, select the Chronological Key option.
What are the 3 dimensions of time?
That’s according to Itzhak Bars of the University of Southern California, Los Angeles. The normal three dimensions including up-down, left-right, forward-back, and space-time. In Bars’s theory, time isn’t linear, but a 2D plane in curvature interwoven throughout these dimensions and more.
References:
Modeling Time Series Data – Oracle
OBIEE 10G/11G – Datacadamia – Data and Co
Issue with Ago function in OBIEE — oracle-tech
OBIEE 12c Time Dimension: Logical Sequence Number
Here are the search results of the thread chronological key in obiee from Bing. You can read more if you want.
Questions just answered:
How many levels of time dimension must have a chronological key?
What are the guidelines for setting up and using time dimensions?
How to create a time dimension in Revit?
What are the 3 dimensions of time?
What are time dimensions and chronological keys?
What is time series in obiee?
Does OBI EE support time-series queries?
How do time series functions work?
What is period rolling in obiee 11g?
How does obiee time-series work?
What is the Order of the chronological keys in the key?
What are the requirements for chronological keys in SQL Server?
How to add chronological key columns in SQL?
How to use time series conversion functions in Oracle BI server?
What is the chronological key in Oracle BI server?
What is chronological order?
What is the chronological order of the books of the Bible?
What is the Order of the Old Testament in order?
What is Order_of_key () function in C++?
What is the Order of the chronological keys in the key?
chronological key in obiee
You have just come across an article on the topic chronological key in obiee. If you found this article useful, please share it. Thank you very much.