Unable to use inner join function

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Dion Theunissen
Dion Theunissen el 10 de Ag. de 2022
Editada: Stephen23 el 10 de Ag. de 2022
I try to join 2 tables together based on an common ID.
When i use the innerjoin function I do not get an error but just a new table without rows.
%% import trips
opts = delimitedTextImportOptions("NumVariables", 28);
% Specify range and delimiter
opts.DataLines = [2, Inf];
opts.Delimiter = ",";
% Specify column names and types
opts.VariableNames = ["id", "country_id", "location_id", "age_group_id", "trip_name", "seo_url", "short_details", "is_featured", "trip_letter", "show_trip_letter", "trip_type", "trip_main_image", "trip_thumb_image", "start_date", "duration", "trip_fee", "trip_discount", "original_fee", "trip_seats_status", "marketing_text", "is_not_bookable", "meta_title", "meta_description", "meta_keyword", "archive", "is_full", "status", "ts"];
opts.VariableTypes = ["double", "double", "double", "double", "categorical", "string", "string", "double", "categorical", "double", "categorical", "string", "string", "datetime", "double", "double", "double", "double", "double", "string", "double", "string", "string", "string", "double", "double", "double", "datetime"];
% Specify file level properties
opts.ExtraColumnsRule = "ignore";
opts.EmptyLineRule = "read";
% Specify variable properties
opts = setvaropts(opts, ["seo_url", "short_details", "trip_main_image", "trip_thumb_image", "marketing_text", "meta_title", "meta_description", "meta_keyword"], "WhitespaceRule", "preserve");
opts = setvaropts(opts, ["trip_name", "seo_url", "short_details", "trip_letter", "trip_type", "trip_main_image", "trip_thumb_image", "marketing_text", "meta_title", "meta_description", "meta_keyword"], "EmptyFieldRule", "auto");
opts = setvaropts(opts, "start_date", "InputFormat", "yyyy-MM-dd");
opts = setvaropts(opts, "ts", "InputFormat", "yyyy-MM-dd HH:mm:ss");
% Import the data
trips = readtable("/Users/simireizen/Documents/MATLAB/trips.csv", opts);
%% Import Bookings
opts = delimitedTextImportOptions("NumVariables", 130);
% Specify range and delimiter
opts.DataLines = [2, Inf];
opts.Delimiter = ",";
% Specify column names and types
opts.VariableNames = ["VarName1", "id", "VarName3", "trip_id", "VarName5", "client_id", "VarName7", "travel_agent_id", "VarName9", "travel_brand_id", "VarName11", "child_firstname", "VarName13", "child_lastname", "VarName15", "gender", "VarName17", "child_dob", "VarName19", "parent_name", "VarName21", "parent_email", "VarName23", "email", "VarName25", "address", "VarName27", "house_number", "VarName29", "city", "VarName31", "postcode", "VarName33", "telephone", "VarName35", "cellphone", "VarName37", "whatsapp_number", "VarName39", "location_pickup_id", "VarName41", "child_diet", "VarName43", "child_medication", "VarName45", "about_child", "VarName47", "date_added", "VarName49", "can_drive", "VarName51", "have_driving_license", "VarName53", "have_creditcard", "VarName55", "trip_fee", "VarName57", "discount_id", "VarName59", "discount_amount", "VarName61", "insurance", "VarName63", "cancellation_insurance", "VarName65", "travel_insurance", "VarName67", "cancellation_policy_number", "VarName69", "travel_policy_number", "VarName71", "survival_adventure_insurance", "VarName73", "insurance_admin_charges", "VarName75", "nature_disaster_insurance", "VarName77", "sgr_contribution", "VarName79", "insurnace_question_1", "VarName81", "insurnace_question_2", "VarName83", "total_amount", "VarName85", "paid_amount", "VarName87", "deleted", "VarName89", "payment_reminder_email_sent", "VarName91", "total_reminder_sent", "VarName93", "email_sent", "VarName95", "login_reminder_email_sent", "VarName97", "upsell_email_sent", "VarName99", "deposit_reminder_email_sent", "VarName101", "passport_reminder_email_sent", "VarName103", "display_name", "VarName105", "additional_address", "VarName107", "contact_person_name", "VarName109", "contact_person_extra_name", "VarName111", "contact_person_extra_cellphone", "VarName113", "travel_agent_email", "VarName115", "commission", "VarName117", "covid_option", "VarName119", "account_name", "VarName121", "account_number", "VarName123", "phone_reminder_email_sent", "VarName125", "status", "VarName127", "ts", "VarName129", "trip_date_before_42"];
opts.VariableTypes = ["double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "string", "string", "string", "string", "categorical", "categorical", "datetime", "datetime", "double", "string", "double", "string", "string", "string", "string", "string", "double", "double", "string", "string", "string", "string", "double", "double", "double", "double", "double", "double", "double", "double", "categorical", "categorical", "string", "string", "string", "string", "datetime", "datetime", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "categorical", "categorical", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "double", "string", "string", "double", "string", "string", "string", "string", "string", "double", "double", "double", "string", "double", "double", "double", "double", "string", "string", "string", "string", "double", "double", "double", "double", "datetime", "datetime", "datetime", "datetime"];
% Specify file level properties
opts.ExtraColumnsRule = "ignore";
opts.EmptyLineRule = "read";
% Specify variable properties
opts = setvaropts(opts, ["VarName11", "child_firstname", "VarName13", "child_lastname", "parent_name", "parent_email", "VarName23", "email", "VarName25", "address", "VarName29", "city", "VarName31", "postcode", "VarName43", "child_medication", "VarName45", "about_child", "VarName103", "display_name", "additional_address", "VarName107", "contact_person_name", "VarName109", "contact_person_extra_name", "travel_agent_email", "VarName119", "account_name", "VarName121", "account_number"], "WhitespaceRule", "preserve");
opts = setvaropts(opts, ["VarName11", "child_firstname", "VarName13", "child_lastname", "VarName15", "gender", "parent_name", "parent_email", "VarName23", "email", "VarName25", "address", "VarName29", "city", "VarName31", "postcode", "VarName41", "child_diet", "VarName43", "child_medication", "VarName45", "about_child", "VarName61", "insurance", "VarName103", "display_name", "additional_address", "VarName107", "contact_person_name", "VarName109", "contact_person_extra_name", "travel_agent_email", "VarName119", "account_name", "VarName121", "account_number"], "EmptyFieldRule", "auto");
opts = setvaropts(opts, "VarName17", "InputFormat", "yyyy-MM-dd");
opts = setvaropts(opts, "child_dob", "InputFormat", "yyyy-MM-dd");
opts = setvaropts(opts, "VarName47", "InputFormat", "yyyy-MM-dd");
opts = setvaropts(opts, "date_added", "InputFormat", "yyyy-MM-dd");
opts = setvaropts(opts, "VarName127", "InputFormat", "yyyy-MM-dd HH:mm:ss");
opts = setvaropts(opts, "ts", "InputFormat", "yyyy-MM-dd HH:mm:ss");
opts = setvaropts(opts, "VarName129", "InputFormat", "yyyy-MM-dd");
opts = setvaropts(opts, "trip_date_before_42", "InputFormat", "yyyy-MM-dd");
opts = setvaropts(opts, ["insurnace_question_1", "insurnace_question_2", "VarName105"], "TrimNonNumeric", true);
opts = setvaropts(opts, ["insurnace_question_1", "insurnace_question_2", "VarName105"], "ThousandsSeparator", ",");
% Import the data
bookings = readtable("/Users/simireizen/Documents/MATLAB/SimiScript/deleted_bookings.csv", opts);
%% join tables
T = innerjoin(bookings,trips);

Respuesta aceptada

Stephen23
Stephen23 el 10 de Ag. de 2022
Editada: Stephen23 el 10 de Ag. de 2022
Because the two tables use different names for the key variable, you will have to help INNERJOIN by telling it the names of the variables/columns that you want to use for the keys. For example:
T = innerjoin(bookings,trips,'LeftKeys','trip_id', 'RightKeys','id');

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