lookup

问题 According to unqualified lookup in cppreference.com: For a name used in the definition of a function, either in its body or as part of default argument, where the function is a member of user-declared or global namespace, the block in which the name is used is searched before the use of the name, then the enclosing block is searched before the start of that block, etc, until reaching the block that is the function body. Then the namespace in which the function is declared is searched until

问题 I am trying to use a data table as a lookup table: > (dt <- data.table(myid=rep(11:12,3),zz=1:6,key=c("myid","zz"))) myid zz 1: 11 1 2: 11 3 3: 11 5 4: 12 2 5: 12 4 6: 12 6 > (id2name <- data.table(id=11:14,name=letters[1:4],key="id")) id name 1: 11 a 2: 12 b 3: 13 c 4: 14 d What I want is > (res <- data.table(myid=rep(11:12,3),zz=1:6,name=rep(letters[1:2],3),key=c("myid","zz"))) myid zz name 1: 11 1 a 2: 11 3 a 3: 11 5 a 4: 12 2 b 5: 12 4 b 6: 12 6 b however, the join I tried failed: > dt

问题 First, let's start with DataTable 1 (DF1) : date id sales cost city name 1: 06/19/2016 1 149 101 MTL Bank1 2: 06/20/2016 1 150 102 MTL Bank1 3: 06/21/2016 1 151 104 MTL Bank1 4: 06/22/2016 1 152 107 MTL Bank1 5: 06/23/2016 1 155 99 MTL Bank1 6: 06/19/2016 2 84 55 NY Bank2 7: 06/20/2016 2 83 55 NY Bank2 8: 06/21/2016 2 80 56 NY Bank2 9: 06/22/2016 2 81 57 NY Bank2 10: 06/23/2016 2 97 58 NY Bank2 library(data.table) DF1 <- data.table(c("06/19/2016", "06/20/2016", "06/21/2016", "06/22/2016", "06

问题 StackExchange, I'm hoping someone here can help me with this issue! I'm working in XSLT 1.0 , trying to embed a lookup table to convert some unformatted data to a standardized, formatted structure. I have read and searched and tried various methods to accomplish this and none of them have been able to generate a result. (Though I'm not getting any errors, either.) Below is a sample of the XSL I'm working with: <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0"

问题 I'm a SSIS Developer. I do lots of SQL stored procedure lookup concepts in SSIS. But when coming to Azure Data Factory I haven't any idea how to perform a lookup using a SQL stored procedure. Could anyone please guide me on this? Thanks in advance ! Jay 回答1: Azure Data Factory (ADF) is more of an ELT tool rather than ETL, therefore direct lookups are not supported. Instead, this type of operation, along with other transforms is pushed down into the compute you are actually using. For example,

问题 I am trying to lookup a col4 value when, in the same row, col1, col2 and col3 each match. I referenced this SO Post as it is a similar question but that solution is not working for me. I am searching for specific Source s, on specific Date s, with specific Status s and want to return the corresponding Count s. My data with examples of output required: 回答1: May not be preferred approach and might not even give the correct answer but for anyone new to PivotTables the sooner they are comfortable

问题 I have this problem: get the threshold amount. please help to get the threshold amount i need to follow the below matrix: Tenor Notional Threshold up to 1 yr up to 500k .05 up to 1 yr 500k to 1mio .75 up to 1 yr 1mio above .8 1-5yr up to 500k .1 1-5yr 500k to 1mio .25 1-5yr 1mio above .5 5-above up to 500k .3 5-above 500k to 1mio .25 5-above 1mio above .5 回答1: You can approach it this way, I have assumed you can add a helper column (in blue) where the Tenor and Notional values are

问题 I have the following data sets in R: > closed [1] 57637 31508 54113 2348 4747 68284 61779 36654 31399 54126 11232 60659 42968 56388 5114 66289 69491 45668 879 65649 71172 36120 61802 7699 70982 [26] 65720 > length(closed) [1] 26 > stlist[1:5,] M.Type M.Code M.Name B.Code B.Name B.Region 1 5M 1759 Istanbul 5M 110007 Taksim Ist 2 5M 62461 Edirne 5M 110007 Aysekadin Ist 3 5M 69493 Tekirdag 5M 110431 Tekirdag Ist 4 5M 7516 Ankara 5M 110548 Batikent Ank 5 5M 14148 Bursa 5M 110351 Bursa Ist > nrow

问题 I'm brand new to SSRS and could use some help: is it possible to nest a lookup expression inside an iif statement? I have a web form with checkboxes and would like to change the answer text from "True" and "False" to "Agree" and "Disagree", but because I'm using a lookup expression to get the responses, I can't use a simple iif statement. When I try to use two Expressions, I get an error message. Here are my expressions: =iif(ReportItems!Textbox70.Value = true, "Agree", "Do not agree")

问题 I have an ID column in a table in my Reporting Services report. I want to title each page of my report based on a corresponding name field. When I try to create an expression for the group-level PageName property, I see that there is a Lookup() function in SSRS. The example given in the description looks like this: =Lookup(Fields!SaleProdId.Value, Fields!ProductID.Value, Fields!Name.Value, "Product") The problem is that these fields are presumably in the same dataset used to create the report