Ho Chi Minh City

Vietnam

Research

17 October 2016

Megacities: Setting the Scene

Daniel Safarik, Shawn Ursini & Antony Wood; Council on Tall Buildings and Urban Habitat

The rise of the megacity presents unprecedented opportunities to understand the human urbanization phenomenon, and to observe the effects of multicore, polycentric cities growing together...

11 June 2014

Highest Helipads

CTBUH Research

In this installment of Tall Buildings in Numbers, CTBUH considers how helipads are used on skyscrapers, and which are the highest in the world. The...

10 October 2011

Prediction and Compensation of Column Shortening for Bitexco Financial Tower

Seongdeok Kang, Jaesung Choi, Hakseong Kim & Inki Kim, Hyundai Architects & Engineers Associates

The effects of column shortening, both elastic and inelastic, take on added significance need special consideration in design and construction. Axial shortening of columns due...

31 December 2010

Tallest Buildings Completed in 2010

CTBUH Research

In a year dominated by news coverage of the new “World’s Tallest Building” – Burj Khalifa, Dubai – one may be surprised to learn that,...

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MessagesTimelineExceptionsViews22RouteQueries27Models203MailsGateSessionRequest
7.3.33PHP Version324msRequest Duration12MBMemory UsageGET city/{slug}/researchRoute
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      uri
      GET city/{slug}/research
      middleware
      web
      controller
      App\Http\Controllers\CityController@research
      namespace
      App\Http\Controllers
      prefix
      where
      as
      city-research
      file
      app/Http/Controllers/CityController.php:696-721
      27 statements were executed, 4 of which were duplicated, 23 unique265ms
      buldingdb
      • select * from `v2_cities` where `slug` = 'ho-chi-minh-city' limit 112ms/app/Http/Controllers/CityController.php:706buldingdb
        Metadata
        Bindings
        • 0. ho-chi-minh-city
        Hints
        • Use SELECT * only if you need all columns from table
        • LIMIT without ORDER BY causes non-deterministic results, depending on the query execution plan
        Backtrace
        • 16. /app/Http/Controllers/CityController.php:706
        • 17. /vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 18. /vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:45
        • 19. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:219
        • 20. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:176
      • select * from `v2_countries` where `v2_countries`.`id` in (168)1.35ms/app/Http/Controllers/CityController.php:706buldingdb
        Metadata
        Hints
        • Use SELECT * only if you need all columns from table
        Backtrace
        • 21. /app/Http/Controllers/CityController.php:706
        • 22. /vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 23. /vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:45
        • 24. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:219
        • 25. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:176
      • select * from `v2_regions` where `v2_regions`.`id` in (7)1.3ms/app/Http/Controllers/CityController.php:706buldingdb
        Metadata
        Hints
        • Use SELECT * only if you need all columns from table
        Backtrace
        • 21. /app/Http/Controllers/CityController.php:706
        • 22. /vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 23. /vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:45
        • 24. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:219
        • 25. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:176
      • select * from `ctbuh_building` where `active` = '1' and `structure_type` = 'building' and (`linked_building_status` is null or `linked_building_status` not in ('COM', 'UC', 'STO', 'UCT')) and `ctbuh_building`.`city_id` in (1740) and `ctbuh_building`.`deleted_at` is null order by `height_architecture` desc, `floors_above` desc, `name_intl` asc211ms/app/Http/Controllers/CityController.php:706buldingdb
        Metadata
        Bindings
        • 0. 1
        • 1. building
        • 2. COM
        • 3. UC
        • 4. STO
        • 5. UCT
        Hints
        • Use SELECT * only if you need all columns from table
        Backtrace
        • 21. /app/Http/Controllers/CityController.php:706
        • 22. /vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 23. /vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:45
        • 24. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:219
        • 25. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:176
      • select * from `v2_cities` where `v2_cities`.`id` in (1740)1.63ms/app/Http/Controllers/CityController.php:706buldingdb
        Metadata
        Hints
        • Use SELECT * only if you need all columns from table
        Backtrace
        • 26. /app/Http/Controllers/CityController.php:706
        • 27. /vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 28. /vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:45
        • 29. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:219
        • 30. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:176
      • select `v2_initiatives`.*, `v2_city_initiative`.`city_id` as `pivot_city_id`, `v2_city_initiative`.`initiative_id` as `pivot_initiative_id` from `v2_initiatives` inner join `v2_city_initiative` on `v2_initiatives`.`id` = `v2_city_initiative`.`initiative_id` where `v2_city_initiative`.`city_id` in (1740) order by `start_date` desc1.78ms/app/Http/Controllers/CityController.php:706buldingdb
        Metadata
        Backtrace
        • 20. /app/Http/Controllers/CityController.php:706
        • 21. /vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 22. /vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:45
        • 23. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:219
        • 24. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:176
      • select * from `v2_cities` where `v2_cities`.`id` in (1740)1.36ms/app/Http/Controllers/CityController.php:706buldingdb
        Metadata
        Hints
        • Use SELECT * only if you need all columns from table
        Backtrace
        • 25. /app/Http/Controllers/CityController.php:706
        • 26. /vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 27. /vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:45
        • 28. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:219
        • 29. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:176
      • select `v2_resources`.*, `v2_city_resource`.`city_id` as `pivot_city_id`, `v2_city_resource`.`resource_id` as `pivot_resource_id` from `v2_resources` inner join `v2_city_resource` on `v2_resources`.`id` = `v2_city_resource`.`resource_id` where `v2_city_resource`.`city_id` in (1740) order by `type` asc, `date` desc3.15ms/app/Http/Controllers/CityController.php:706buldingdb
        Metadata
        Backtrace
        • 20. /app/Http/Controllers/CityController.php:706
        • 21. /vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 22. /vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:45
        • 23. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:219
        • 24. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:176
      • select * from `v2_people` where `v2_people`.`city_id` in (1740)1.87ms/app/Http/Controllers/CityController.php:706buldingdb
        Metadata
        Hints
        • Use SELECT * only if you need all columns from table
        Backtrace
        • 21. /app/Http/Controllers/CityController.php:706
        • 22. /vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 23. /vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:45
        • 24. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:219
        • 25. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:176
      • select `v2_roles`.*, `v2_person_role`.`person_id` as `pivot_person_id`, `v2_person_role`.`role_id` as `pivot_role_id`, `v2_person_role`.`year_start` as `pivot_year_start`, `v2_person_role`.`year_end` as `pivot_year_end`, `v2_person_role`.`title` as `pivot_title`, `v2_person_role`.`link` as `pivot_link`, `v2_person_role`.`display_order` as `pivot_display_order`, `v2_person_role`.`hide_in_lists` as `pivot_hide_in_lists` from `v2_roles` inner join `v2_person_role` on `v2_roles`.`id` = `v2_person_role`.`role_id` where `v2_person_role`.`person_id` in (3463, 3587, 4250, 7143, 8590, 26210) order by `display_order` asc, `name` asc, `pivot_title` asc, `pivot_year_start` asc1.59ms/app/Http/Controllers/CityController.php:706buldingdb
        Metadata
        Backtrace
        • 25. /app/Http/Controllers/CityController.php:706
        • 26. /vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 27. /vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:45
        • 28. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:219
        • 29. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:176
      • select `v2_members`.*, `v2_city_member`.`city_id` as `pivot_city_id`, `v2_city_member`.`member_id` as `pivot_member_id`, `v2_city_member`.`headquarters` as `pivot_headquarters`, `v2_city_member`.`contact` as `pivot_contact` from `v2_members` inner join `v2_city_member` on `v2_members`.`id` = `v2_city_member`.`member_id` where `v2_city_member`.`city_id` = 1740 and `level` > 0 and `v2_members`.`deleted_at` is null order by `level` asc, `name` asc1.85ms/app/Http/Controllers/CityController.php:756buldingdb
        Metadata
        Bindings
        • 0. 1740
        • 1. 0
        Backtrace
        • 19. /app/Http/Controllers/CityController.php:756
        • 20. /app/Http/Controllers/CityController.php:708
        • 21. /vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 22. /vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:45
        • 23. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:219
      • select `ctbuh_company`.*, `v2_ctbuh_company_member`.`member_id` as `pivot_member_id`, `v2_ctbuh_company_member`.`ctbuh_company_id` as `pivot_ctbuh_company_id` from `ctbuh_company` inner join `v2_ctbuh_company_member` on `ctbuh_company`.`id` = `v2_ctbuh_company_member`.`ctbuh_company_id` where `v2_ctbuh_company_member`.`member_id` = 451 and `ctbuh_company`.`deleted_at` is null2.44ms/app/Http/Controllers/CityController.php:763buldingdb
        Metadata
        Bindings
        • 0. 451
        Backtrace
        • 19. /app/Http/Controllers/CityController.php:763
        • 20. /app/Http/Controllers/CityController.php:708
        • 21. /vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 22. /vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:45
        • 23. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:219
      • select * from `v2_resource_categories` where `type` = 'Video'1.29ms/app/Http/Controllers/CityController.php:794buldingdb
        Metadata
        Bindings
        • 0. Video
        Hints
        • Use SELECT * only if you need all columns from table
        Backtrace
        • 12. /app/Http/Controllers/CityController.php:794
        • 13. /app/Http/Controllers/CityController.php:708
        • 14. /vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 15. /vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:45
        • 16. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:219
      • select * from `v2_resource_categories` where `type` = 'Video'1.41ms/app/Http/Controllers/CityController.php:794buldingdb
        Metadata
        Bindings
        • 0. Video
        Hints
        • Use SELECT * only if you need all columns from table
        Backtrace
        • 12. /app/Http/Controllers/CityController.php:794
        • 13. /app/Http/Controllers/CityController.php:708
        • 14. /vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 15. /vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:45
        • 16. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:219
      • select * from `v2_resource_subcategories` where `type` = 'Video' and `id` = 14 limit 11.26ms/app/Http/Controllers/CityController.php:803buldingdb
        Metadata
        Bindings
        • 0. Video
        • 1. 14
        Hints
        • Use SELECT * only if you need all columns from table
        • LIMIT without ORDER BY causes non-deterministic results, depending on the query execution plan
        Backtrace
        • 13. /app/Http/Controllers/CityController.php:803
        • 14. /app/Http/Controllers/CityController.php:708
        • 15. /vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
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        Hints
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        Metadata
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        Hints
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        Hints
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        Hints
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