u-sql

问题 I need to convert a string to float I need u-sql code. the script could be an exponencial like 10^2 I tried Float.Convert but not works. I expect convert(10^2) = 100 回答1: Assuming this is your own format is You will need to write a C# function to do that. You can write code behind https://www.purplefrogsystems.com/paul/2017/04/calling-u-sql-stored-procedures-with-c-code-behind/ or functions https://sqlplayer.net/2017/10/functions-in-the-usql-the-hidden-gem-in-the-summer-2017-update/ 回答2: An

问题 I need to convert a string to float I need u-sql code. the script could be an exponencial like 10^2 I tried Float.Convert but not works. I expect convert(10^2) = 100 回答1: Assuming this is your own format is You will need to write a C# function to do that. You can write code behind https://www.purplefrogsystems.com/paul/2017/04/calling-u-sql-stored-procedures-with-c-code-behind/ or functions https://sqlplayer.net/2017/10/functions-in-the-usql-the-hidden-gem-in-the-summer-2017-update/ 回答2: An

问题 Need some guidance as I am new to Power BI and Redshift .. My Raw JSON data is stored in Amazon S3 bucket in the form of .gz files (Each .gz file has multiple rows of JSON data) I wanted to connect Power BI to Amazon s3 Bucket. As of now based on my research I got three ways: Amazon S3 is a web service and supports the REST API. We can try to use web data source to get data Question: Is it possible to unzip the .gz file (inside the S3 bucket or Inside Power BI), extract JSON data from S3 and

问题 What is the mechanism used to raise an error or exception in a U-Sql script? I have a scenario where am processing a CSV file, and if duplicates are found in it, then I need to abandon processing. In SQL, I could do raiseerror , what it the equivalent way of doing it in U-Sql? 回答1: Create a c# function to raise custom errors (or output to a file): DECLARE @RaiseError Func<string, int> = (error) => { throw new Exception(error); return 0; }; @Query = SELECT @RaiseError(value) AS ErrorCode FROM

来源： https://stackoverflow.com/questions/63207259/azure-datalake-analytics-u-sql-with-azure-datalake-storage-gen-2

来源： https://stackoverflow.com/questions/63207259/azure-datalake-analytics-u-sql-with-azure-datalake-storage-gen-2

问题 I have ioT data in azure datalake structure as {date}/{month}/{day}/abbs. Json Each file has multiple records separated by new line .. How to read this data using usql and load into table and query. When I load it in usql table using / / / / .json will that load data into same table when new files added to files. I have followed qzure docs but did not find any answer to line separated json file. 回答1: In this example we will create a table to store events: CREATE TABLE dbo.Events ( Event

问题 One of the team member after upgrading the ADL tools for VS to version 2.3.4000.x, getting the below error.. Error : (-1,-1) 'E_CSC_SYSTEM_INTERNAL: Internal error! The ObjectManager found an invalid number of fixups. This usually indicates a problem in the Formatter.' Compile failed! Tried to downgrade back to version ( 2.3.3000.2 ), it didn't help much. If encountered similar issue, found the reason and resolved it, please share it. 回答1: After trying out few unsuccessful options, decided to

问题 Copy activity using U-SQL can any body share script I want to read a file using copy activity using U-SQL and write this file on output in a file using U-SQL 回答1: You can copy files in the following ways: Azure Data Factory ADL Copy tool Write a custom U-SQL extractor/outputter (similar to 2) 回答2: Here's a UDO that does that. The other samples are also quite useful. https://github.com/Azure/usql/tree/master/Examples/FileCopyUDOs 来源： https://stackoverflow.com/questions/44048110/copy-activity

问题 Copy activity using U-SQL can any body share script I want to read a file using copy activity using U-SQL and write this file on output in a file using U-SQL 回答1: You can copy files in the following ways: Azure Data Factory ADL Copy tool Write a custom U-SQL extractor/outputter (similar to 2) 回答2: Here's a UDO that does that. The other samples are also quite useful. https://github.com/Azure/usql/tree/master/Examples/FileCopyUDOs 来源： https://stackoverflow.com/questions/44048110/copy-activity