I've googled the error message and various other keywords, but haven't
found anything similar enough to my own problem that I could apply it.
In my schema, I have the following dimension:
<Dimension name="Chip">
<Hierarchy hasAll="true" primaryKey="chip_id">
<Table name="chip"/>
<Level name="Reference Designator" column="ux" type="Integer"/>
<Level name="Pad" column="pad" type="Integer"/>
<Level name="Chip" column="chip" type="Integer"/>
</Hierarchy>
<Hierarchy name="Flash Pack Hierarchy" hasAll="true" primaryKey="chip_id">
<Table name="chip"/>
<Level name="Flash Pack" column="fp" type="Integer"/>
<Level name="Pad" column="pad" type="Integer"/>
<Level name="Chip" column="chip" type="Integer"/>
</Hierarchy>
<Hierarchy name="Bank Hierarchy" hasAll="true" primaryKey="chip_id">
<Table name="chip"/>
<Level name="Bank" column="bank" type="Integer"/>
<Level name="Chip" column="chip" type="Integer"/>
</Hierarchy>
</Dimension>
and the cube:
<Cube name="Chip Facts">
<Table name="chip_facts"/>
<DimensionUsage name="Machine" source="Machine" foreignKey="machine_id"/>
<DimensionUsage name="Card" source="Card" foreignKey="card_id"/>
<DimensionUsage name="Chip" source="Chip" foreignKey="chip_id"/>
<DimensionUsage name="Failure" source="Failure" foreignKey="failure_id"/>
</Cube>
I can query:
select
[Chip].[Reference Designator].members on columns
from [Chip Facts]
but not:
select
[Chip].[Flash Pack].members on columns
from [Chip Facts]
I get:
Caused by: mondrian.olap.MondrianException: Mondrian Error:MDX object '[Chip].[Flash Pack]' not found in cube 'Chip Facts'
How do I select the other hierarchy?
Syntax mondrian Olap cube
select {[Measures.qty1],..} on rows,
{[dimension.heirrarchy].members} on columns
from cube
Perhaps:
select [Chip].[Flash Pack Hierarchy].[Flash Pack].members on 0 from [Chip Facts]
The first hierarchy has no name, this is the default hierarchy.
The second hierarchy is [Flash Pack Hierarchy], the name is required.
Related
I have a sample star schema made in this way:
author (id, name)
book (id, name)
sample_fact_table (id, authorfk, bookfk, quantity)
where obiouvsly authorfk is a FK to author.id and bookfk is FK to book.id.
Dimensions are: "author", "book". Measure is "quantity".
I made this configuration for the cube, using Pentaho Schema Workbench tool:
<Schema name="MySchema">
<Dimension type="StandardDimension" visible="true" name="Author">
<Hierarchy visible="true" hasAll="true" allMemberName="All Authors" primaryKey="id">
<Table name="author">
</Table>
<Level name="Name" visible="true" table="author" column="id" nameColumn="name" uniqueMembers="false">
</Level>
</Hierarchy>
</Dimension>
<Dimension type="StandardDimension" visible="true" name="Book">
<Hierarchy visible="true" hasAll="true" allMemberName="All Books" primaryKey="id">
<Table name="book">
</Table>
<Level name="Name" visible="true" table="book" column="id" nameColumn="name" uniqueMembers="false">
</Level>
</Hierarchy>
</Dimension>
<Cube name="TestCube" visible="true" cache="true" enabled="true">
<Table name="sample_fact_table">
</Table>
<DimensionUsage source="Author" name="Author" visible="true" foreignKey="authorfk">
</DimensionUsage>
<DimensionUsage source="Book" name="Book" visible="true" foreignKey="bookfk">
</DimensionUsage>
<Measure name="quantity" column="quantity" aggregator="sum" visible="true">
</Measure>
</Cube>
</Schema>
If I try to execute the MDX query:
select
Measures.quantity ON COLUMNS,
NON EMPTY Author.Children ON ROWS
from [TestCube]
I have a good result:
Axis #0:
{}
Axis #1:
{[Measures].[quantity]}
Axis #2:
{[author].[Al]}
{[author].[John]}
{[author].[Jack]}
Row #0: 3
Row #1: 9
Row #2: 1
But if instead of Author I query on Book, like this:
select
Measures.quantity ON COLUMNS,
NON EMPTY Book.Children ON ROWS
from [TestCube]
I get this error:
Mondrian Error:Failed to parse query 'select
Measures.quantity ON COLUMNS,
NON EMPTY Book.Children ON ROWS
from [TestCube]'
Mondrian Error:MDX object 'Book' not found in cube 'TestCube'
What I'm doing wrong?
Author and Book are both Dimensions, both declared in the same way, both referenced into the Cube.
Thank you!
I am using this cube to retrieve data from my OLTP Database
<?xml version="1.0"?>
<Schema name="Test36">
<Cube name="Test36Cube">
<Table name="fact_table"/>
<Dimension name="Year Month Day" foreignKey="id_date">
<Hierarchy hasAll="false" primaryKey="id_date">
<Table name="transaction_date"/>
<Level name="Year" column="year" uniqueMembers="true" levelType="TimeYears" type="Numeric"/>
<Level name="Month" column="month" uniqueMembers="false" ordinalColumn="monthNumber" nameColumn="month" levelType="TimeMonths" type="Numeric"/>
<Level name="Day" column="day" uniqueMembers="false" levelType="TimeDays" type="Numeric"/>
</Hierarchy>
</Dimension>
<Dimension name="Txn type">
<Hierarchy hasAll="false">
<Level name="txn type" column="tx_type" uniqueMembers="true"/>
</Hierarchy>
</Dimension>
<Measure name="Amount" column="tx_amount" aggregator="sum" formatString="Standard"/>
</Cube>
</Schema>
When I add the dimension "Txn type", data for "year month day" is not loaded for each month. Data for only some months is retrived. I am not able to understand the reason behind this error. Can anybody help?
I need to create an OLAP View just from one table in MySQL.
I need to get information from the following columns in my table: Date, Machine, Level, Item, Code, Comment, Downtime.
So I created this Mondrian Schema:
<Schema name="ExampleSchema">
<Cube name="ExampleCube">
<Table name="example_table"/>
<Dimension name="Date">
<Hierarchy hasAll="true" allMemberName="All Date">
<Level name="Date" column="date" uniqueMembers="true"/>
</Hierarchy>
</Dimension>
<Dimension name="Machine">
<Hierarchy hasAll="true" allMemberName="All Machine">
<Level name="Machine" column="machine" uniqueMembers="true"/>
</Hierarchy>
</Dimension>
<Dimension name="Level">
<Hierarchy hasAll="true" allMemberName="All Level">
<Level name="Level" column="level" uniqueMembers="true"/>
</Hierarchy>
</Dimension>
<Dimension name="Item">
<Hierarchy hasAll="true" allMemberName="All Item">
<Level name="Item" column="item" uniqueMembers="true"/>
</Hierarchy>
</Dimension>
<Dimension name="Code">
<Hierarchy hasAll="true" allMemberName="All Code">
<Level name="Code" column="code" uniqueMembers="true"/>
</Hierarchy>
</Dimension>
<Dimension name="Comment">
<Hierarchy hasAll="true" allMemberName="All">
<Level name="Comment" column="comment" uniqueMembers="true"/>
</Hierarchy>
</Dimension>
<Measure name="Downtime" column="downtime" aggregator="sum" formatString="Standard" visible="true"/>
</Cube>
</Schema>
My query looks like follows:
{[Item].[All Item]} * {[Measures].[Downtime]}
ON columns,
{[Code].[All Code]} * {[Comment].[All Comment]}
ON rows
from [ExampleCube]
WHERE
{([Date].[2011-11-31], [Machine].[1500], [Level].[AB])}
It works, but I want to have measures not for a single date, but for a period of time (from the start date till the end date).
Try using the range operator :
{[Item].[All Item]} * {[Measures].[Downtime]}
ON columns,
{[Code].[All Code]} * {[Comment].[All Comment]}
ON rows
from [ExampleCube]
WHERE
(
{[Date].[2011-11-31]:[Date].[2015-06-25]}
, [Machine].[1500], [Level].[AB]
)
Both dates [Date].[2011-11-31]:[Date].[2015-06-25] must exist within your cube.
I have the following table created by the following MDX
SELECT
{
[Measures].numTickets
}ON COLUMNS,
{
Descendants(DateCreacion.Children, DateCreacion.Month)
}ON ROWS
FROM tickets
The thing is that i want to add another column to the numTickets but every time i add a dimension to the column, i get an empty column.
select {[Clinica].Children} ON COLUMNS,
{Descendants([DateCreacion].Children, [DateCreacion.YQMD].[Month])} ON ROWS
from [tickets]
How would i show the same data as the first picture but in the second format?
<Schema name="New Schema1">
<Cube name="tickets" visible="true" cache="true" enabled="true">
<Table name="fact">
</Table>
<Dimension type="TimeDimension" visible="true" foreignKey="fecha_tickets_id" name="DateCreacion">
<Hierarchy name="YQMD" visible="true" hasAll="true">
<Table name="dim_fecha_creacion_tickets" alias="">
</Table>
<Level name="Year" visible="true" column="año" type="Numeric" uniqueMembers="false" levelType="TimeYears">
</Level>
<Level name="Quarter" visible="true" column="cuarto" type="Numeric" uniqueMembers="false" levelType="TimeQuarters">
</Level>
<Level name="Month" visible="true" column="mes" type="Numeric" uniqueMembers="false" levelType="TimeMonths">
</Level>
<Level name="Day" visible="true" column="dia" type="Numeric" uniqueMembers="false" levelType="TimeDays">
<Property name="date_iso" column="date_iso" type="Numeric">
</Property>
</Level>
</Hierarchy>
</Dimension>
<Dimension type="StandardDimension" visible="true" foreignKey="clinica_id" name="Clinica">
<Hierarchy name="New Hierarchy 0" visible="true" hasAll="true">
<Table name="dim_posicion" alias="">
</Table>
<Level name="Posicion" visible="true" column="sigla" type="String" uniqueMembers="false">
</Level>
</Hierarchy>
</Dimension>
<Measure name="numTickets" column="idTicket" datatype="Numeric" aggregator="count" visible="true">
</Measure>
</Cube>
</Schema>
When adding the [Clinica].Children to the columns, you removed the measures.
You probably want to keep them, using a cross join, which can be stated using the * operator in MDX: Either
select {[Clinica].Children}
*
{ [Measures].numTickets }
ON COLUMNS,
...
or
select { [Measures].numTickets }
*
{[Clinica].Children}
ON COLUMNS,
...
depending on the order of columns you want to see.
I need to create an OLAP View just from one table in MySQL.
I need to get information from the following columns in my table:
loginNote
logoutNote
timestamp
userFirstName
So I created this Mondrian Schema:
<Schema name="Login">
<Cube name="Login" visible="true" cache="true" enabled="true">
<Table name="event_log">
</Table>
<Dimension visible="true" highCardinality="false" name="UserFirstName">
<Hierarchy visible="true" hasAll="true" allMemberName="All UserFirstName">
<Level name="UserFirstName" visible="true" column="userFirstName" type="String" uniqueMembers="true" levelType="Regular" hideMemberIf="Never">
</Level>
</Hierarchy>
</Dimension>
<Dimension visible="true" highCardinality="false" name="LoginNote">
<Hierarchy visible="true" hasAll="true" allMemberName="All LoginNote">
<Level name="LoginNote" visible="true" column="loginNote" type="String" uniqueMembers="true" levelType="Regular" hideMemberIf="Never">
</Level>
</Hierarchy>
</Dimension>
<Dimension visible="true" highCardinality="false" name="LogoutNote">
<Hierarchy visible="true" hasAll="true" allMemberName="All UserFirstName">
<Level name="LogoutNote" visible="true" column="logoutNote" type="String" uniqueMembers="true" levelType="Regular" hideMemberIf="Never">
</Level>
</Hierarchy>
</Dimension>
<Measure name="Users" column="userFirstName" aggregator="count" description="Users">
</Measure>
I would like to know how can I run a MDX query to be able to show on the rows the LoginNote and LogoutNote information, and in the columns, the UserFirstName.
I was able to run
Select
UserFirstName.Children ON COLUMNS,
LogoutNote.Children ON ROWS
FROM Login
or
Select
UserFirstName.Children ON COLUMNS,
LoginNote.Children ON ROWS
FROM Login
but I cannot run
Select
UserFirstName.Children ON COLUMNS,
{LogoutNote.Children,LoginNote.Children} ON ROWS
FROM Login
because an error is returned:
All arguments to function '{}' must have same hierarchy.
Any help will be appreciated!
Thanks!
The {...} notation is shorthand for Union(...), which combines two sets of members together. Those members must come from the same hierarchy (as the error message says), but you are including members from LogoutNote and LoginNote which are different dimensions/hierarchies.
If you want to combine hierarchies, you need to Crossjoin() them, creating a cartesian product of the two sets.
SELECT
UserFirstName.Children ON COLUMNS,
Crossjoin(LogoutNote.Children, LoginNote.Children) ON ROWS
FROM Login
I'm not sure if this is exactly what you expect as the results from your query, and you might want to add a NON EMPTY before that Crossjoin() to eliminate all the combinations of LoginNote and LogoutNote that have no values.
Hope that sets you on the right track.