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  • PowerCenter 10.5
  • Todos os produtos

Sumário

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  1. Prefácio
  2. A Linguagem de Transformação
  3. Constantes
  4. Operadores
  5. Variáveis
  6. Datas
  7. Funções
  8. Criação de funções personalizadas
  9. Referência de API da Função Personalizada

Referência de Linguagem de Transformação

Referência de Linguagem de Transformação

Anterior Avançar

Diferença entre as strings de formato YY e RR

Diferença entre as strings de formato YY e RR

O
PowerCenter
 fornece ainda uma string de formato YY. Ambas as strings de formato RR e YY especificam anos de dois dígitos. As strings de formato YY e RR produzem resultados idênticos quando usadas com todas as funções de data, exceto TO_DATE. Em expressões TO_DATE, RR e YY produzem resultados diferentes.
A seguinte tabela mostra os diferentes resultados que cada string de formato retorna:
String
Ano atual
TO_DATE(String, ‘MM/DD/RR’)
TO_DATE(String, ‘MM/DD/YY’)
04/12/98
1998
04/12/1998 00:00:00.000000000
04/12/1998 00:00:00.000000000
11/09/01
1998
11/09/2001 00:00:00.000000000
11/09/1901 00:00:00.000000000
04/12/98
2003
04/12/1998 00:00:00.000000000
04/12/2098 00:00:00.000000000
11/09/01
2003
11/09/2001 00:00:00.000000000
11/09/2001 00:00:00.000000000
Em datas no ano 2000 e seguintes, a string de formato YY produz resultados menos significativos do que a string de formato RR. Use a string de formato RR em datas no século vinte e um.