olap

来源： https://stackoverflow.com/questions/63405856/why-impala-spend-a-lot-of-time-opening-hdfs-file-totalrawhdfsopenfiletime

来源： https://stackoverflow.com/questions/63405856/why-impala-spend-a-lot-of-time-opening-hdfs-file-totalrawhdfsopenfiletime

问题 I have an .odc (office data connection) that connects Excel to a Web Service (MSBI, Web PowerBI). It's working fine. I open the odc file, Excel opens up and it is connected to the data source. How can I open this connection directly from R? The odc file contents are: <odc:ConnectionString> Provider=MSOLAP; Integrated Security=ClaimsToken; Identity Provider=https://login.microsoftonline.com/common, https://analysis.windows.net/powerbi/api, xxxxxx-xx-xx-xxxxxx; Data Source=pbiazure://api

问题 As I want to use the dynamic datetime values to pass as dimension in my OLAP Cube. Since, There is specific FY format for us. So, I decided to go with sql views. I have partly done writing my sql views. I need to have all the columns as when DateTime table created using Cube wizard. ie, PK_Date, Date_Name, Fiscal_Year, Fiscal_Year_Name, Fiscal_Half_Year, Fiscal_Half_Year_Name etc.... But, Only change with generating DateTime table from cube wizard is, in our approach we are going to use view

问题 As I want to use the dynamic datetime values to pass as dimension in my OLAP Cube. Since, There is specific FY format for us. So, I decided to go with sql views. I have partly done writing my sql views. I need to have all the columns as when DateTime table created using Cube wizard. ie, PK_Date, Date_Name, Fiscal_Year, Fiscal_Year_Name, Fiscal_Half_Year, Fiscal_Half_Year_Name etc.... But, Only change with generating DateTime table from cube wizard is, in our approach we are going to use view

问题 The company I work for creates an OLAP Cube Database for each of our clients. I keep up with many things on a daily basis using values in the cubes. Whenever a new clients cube is set up, I add a sheet to the workbook I use, and create a pivot table using that cube. I want to create a macro that checks the server for any cubes that may have been added. I figured doing something like this, below, would be the best way For Each Cube in Server.Cubes MsgBox Cube.Name Next Cube ...but I cannot

问题 Today I received a curious error in one of the OLAP cube I was working on. When trying to access it from SSAS or from a external connection in Excel, I received an error similar to what is described below: '', hexadecimal value 0x1A, is an invalid character. Line 1, position 325042770. (System.Xml) Not sure why this special character was displayed as a "->" symbol, but after exporting the error message to text I determined this it was the "SUB" character. Apparently it was a "invalid

问题 We have a client that has Oracle Standard , and a project that would be ten times easier addressed using OLAP. However, Oracle only supports OLAP in the Enterprise version. Migration to enterprise is not possible I'm thinking of doing some manual simulation of OLAP, creating relational tables to simulate the technology. Do you know of some other way I could do this? Maybe an open-source tool for OLAP? Any ideas? 回答1: You can simulate OLAP functionality using client side tools pointed at a

问题 We have a client that has Oracle Standard , and a project that would be ten times easier addressed using OLAP. However, Oracle only supports OLAP in the Enterprise version. Migration to enterprise is not possible I'm thinking of doing some manual simulation of OLAP, creating relational tables to simulate the technology. Do you know of some other way I could do this? Maybe an open-source tool for OLAP? Any ideas? 回答1: You can simulate OLAP functionality using client side tools pointed at a

问题 What is the recommended pattern for managing Mondrian database connections? I am using Mondrian as a library in a Scala/Play Framework web application. For example: var connection try { connection = DriverManager.getConnection(connection_string).unwrap(classOf[OlapConnection]) val result = connection.createStatement.executeOlapQuery(mdx) // ... use the result ... } finally { if (connection) connection.close } Is calling close in a finally block the right approach? How do I configure a