lookup-tables

问题 Closed . This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 3 years ago . I recently wrote a piece of C code like that: static void func1() { } static void func2() { } typedef void (*func_t)(void); const func_t lookUpTable[FUNC_COUNT] = { [FUNC1] = &func1, [FUNC2] = &func2 } An other programmer worked on the same file and changed it to: static void

问题 I am trying to use Hibernate with hbm2ddl.auto set to validate so that Hibernate must respect my DB schema, instead of auto-generating tables around my Java classes. A lot of my tables are so-called "lookup" or "reference" tables, that essentially consist of id , name and tag fields: credit_card_types credit_card_type_id Ex: "12" credit_card_type_name Ex: "Visa" credit_card_type_tag Ex: "VISA" payment_types payment_type_id Ex: "2" payment_type_name Ex: "Google Checkout" payment_type_tag EX:

问题 I've a jQuery problem that I could use some help with. I'm trying to determine a value based on values in table. Here's the scenario: A category is selected. This determines the column to use. Here's the code for that: var column; if( $('input:radio[name=arc2-1]:checked').val() == 0 && $('input:radio[name=arc2-2]:checked').val() == 0) { column = 2; }else if( $('input:radio[name=arc2-1]:checked').val() == 0 && $('input:radio[name=arc2-2]:checked').val() == 1) { column = 3; }else if( $('input

问题 I've got two sheets like this in excel : Price chart : **Post AB** **Post Tenn** **Post DN** Price 10.1-10.20 Price 10.1-10.20 Price 10.1-20.1 CityOrigin Destination 20 kg 40 kg 20 kg 40 kg 20 kg 40 kg New York Madrid 45 40 40 50 45 40 Los Angeles Madrid 65 70 70 70 56 60 Oregon Paris 89 100 110 105 74 98 Washington Paris 34 80 45 65 45 69 and Working chart: Price Rate Post Career CityOrigin Date 20KG 40KG Post AB New Tork =Today() ? ? Post Tenn Los Angles " ? ? Post DN Oregon " ? ? I am

问题 I have a database like the following, in which the value of the parameter 'b' depends on the values of multiple other parameters, viz. a(1), a(2) ... a(n): a(1),a(2),a(3),...,a(n) : b and multiple lines like this. The value of 'n' is also dynamic and varies across various data sets. What is the best way to construct a lookup table for this kind of data in Python? One way could be using a nested dictionary with the values of a(i) as i-th level of key, but it seems too cumbersome to create such

问题 How do you select rows based on a multi-value Lookup field in an Access database? The below ASP code returns no value when using multi-data column: <% Dim Contractors Dim Contractors_cmd Dim Contractors_numRows Set Contractors_cmd = Server.CreateObject ("ADODB.Command") Contractors_cmd.ActiveConnection = MM_Listings_STRING Contractors_cmd.CommandText = "SELECT * FROM Contractor WHERE UserStatus = 'Active' AND AgentID= "& Session("AgentID") Contractors_cmd.Prepared = true Set Contractors =

问题 This question already has answers here : How to join (merge) data frames (inner, outer, left, right) (13 answers) Closed last year . I was looking for a smart, or "tidier" way, to make use of a lookup table in the tidyverse, but could not find a satisfying solution. I have a dataset and lookup table: # Sample data data <- data.frame(patients = 1:5, treatment = letters[1:5], hospital = c("yyy", "yyy", "zzz", "www", "uuu"), response = rnorm(5)) # Lookup table lookup <- tibble(hospital = c("yyy"

问题 I am creating RESTful services for several database entities based on a modified version of the BISDM. Some of these entities have associated lookup tables, such as depicted below: I have decided to use the repository pattern to provide a clean separation between data persistance / retrieval; however, I am not sure how lookups ( as opposed to entities ) should be represented in the repository. Should lookups get their own repository interface, "share" one with the associated entity, or should

问题 I know how to operate this menu with a switch case routine, but I want to change my switch case to an object literal. Part A knows how to get the onchange value and open a window. Part B knows how to find the value in a name:value pair in an object, but only if it's given a hard-coded name to match a value to. I have to combine Part A and Part B's capabilities. Since Part A and Part B both work independently of each other, it should be a simple matter to combine them, but I've been at it four

问题 I'm trying to add a full text search to a system. The query I want to write needs to involve multiple lookups followed by the search (if that's even possible). I've got a table of teachers and a table of subjects. teacherProfile teacherId [int] - primary key subjectOneId [int] subjectTwoId [int] subjectThreeId [int] teacherBiography [text] subjects subjectId [int] subjectName [text] So ultimately I want a resultset along the lines of.. teacherId [int] teacherBiography [text] ( subjectOneName