Ошибка power query dataformat error

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Ссылки:

• Страница курса
• Плейлист YouTube
• Плейлист ВК

Описание

Мы собираемся импортировать таблицу с этой страницы. Когда мы пытаемся изменить тип данных для столбцов с датой, то возвращается столбец с ошибкой DateFormat.Error.

Решение

Если не получается преобразовать столбец с текстом в дату, то значит в строке присутствуют лишние символы.

С помощь функции Text.Length мы можем убедиться, что длина строки намного больше, чем ожидается. Мы видим 10 символов, но функция возвращает 15.

С помощью функции Text.Start извлечем 1 символ сначала строки. Потом получим код этого символа с помощью функции Character.ToNumber. Получаем 8206.

Далее воспользуемся функционалом замены подстроки и исправляем получившуюся формулу:

Table.ReplaceValue(
      get_table, 
      Character.FromNumber(8206), 
      "", 
      Replacer.ReplaceText, 
      {
         "Дата начала купонного периода", 
         "Дата выплаты купона", 
         "Дата фиксации списка держателей"
      }
   )

Примененные функции

• Text.Length
• Text.Start
• Character.ToNumber
• Web.Page
• Web.Contents
• Table.SelectRows
• Table.ReplaceValue
• Character.FromNumber
• Replacer.ReplaceText
• Table.TransformColumnTypes

Код

let
   source = Web.Page(
      Web.Contents(
         "https://www.moex.com/ru/issue.aspx?board=TQCB&code=RU000A102036#/bond_4"
      )
   ), 
   get_table = Table.SelectRows(
      source, 
      each ([ClassName] = "coupon-payment-schedule__table")
   ){0}[Data], 
   cols_replace = Table.ReplaceValue(
      get_table, 
      Character.FromNumber(8206), 
      "", 
      Replacer.ReplaceText, 
      {
         "Дата начала купонного периода", 
         "Дата выплаты купона", 
         "Дата фиксации списка держателей"
      }
   ), 
   cols_types = Table.TransformColumnTypes(
      cols_replace, 
      {
         {"Дата начала купонного периода", type date}, 
         {"Дата выплаты купона", type date}, 
         {"Дата фиксации списка держателей", type date}
      }
   )
in
   cols_types

Этот урок входит в курс Работа с ошибками в Power Query

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Hi, basically my database consist of staff id..now most staff id are all digits, for example

1234
4519
8901

However, there are staff id which includes a letter, for example

B1290
C9021

The error states DataFormat.Error: We couldn’t convert to Number. — but the thing is my data type is not set to numbers (it is set to this logo ABC123, and i have also tried setting the type to text but it did not work. Please help