Applies to: Tableau Cloud, Tableau Desktop, Tableau Server Note: Using custom SQL can affect performance of a workbook. Working with your DBA will ensure the best possible custom SQL query. In order to perform the operations necessary for building views in Tableau Desktop, Tableau must be able...
我理解在BI上使用SQL是对原始数据进行查询、筛选、清洗，这一点主流BI工具像power BI，tableau、superset...
I want to convert this SQL query to Tableau calculation: Datediff(day, isnull(Closedate, '1/1/2040'), OpenDate) not between 0 and 7) So, I want to calculate count of accounts except those accounts that have been opened but closed within 7 days of opening. Thank you in advance. Tabl...
Now that you have a mechanism for fabricating all the days in 2008, what shou you do with it ? well , you might be asked to generate a query that shows every day in 2008 along with the number of banking transactions couducted on that day, the number of accounts opened on that day, ...
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We have included a set of useful parameters that can be substituted when your query is run. Simply include these pararmeters in your SQL statement in brackets. For example, [TableauServerUser] will return the user currently logged into Tableau Server. Here are a few others: ...
For more information, see Connect to a Custom SQL Query. You can also use Custom SQL to perform advanced spatial analysis on spatial columns in Microsoft SQL Server. For more information, see Use Custom SQL and RAWSQL to perform advanced spatial analysis. Note: Tableau Desktop does not ...
自从有了VizQL的交互式查询引擎,任何人都可以拖拽数据表、数据表字段完成数据查询和分析整理工作,从最简单的SELECT * FROM table,到进阶的字段格式调整、字段重命名、字段分组、分组聚合,再到更高级的“嵌套聚合查询”(nested query)、WINDOW窗口函数,Tableau都设计了极简的交互设计实现思路。
INSERT INTO tableau_name VALUES (1, 'Cheese', 9.99);更新数据（使用UPDATE语句）UPDATE table_name...
In the Add Table dialog that appears, choose the second table. This is equivalent to a JOIN in a SQL Query. The "Join" tab allows you to define the keys and the Join Type (Inner, Left, Right, Full). It creates the ON portion of a JOIN clause. Tableau automatically recognizes some ...