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  • PowerExchange for CDC and Mainframe 10.4.1
  • Todos os produtos

Sumário

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  1. Prefácio
  2. Introdução ao PowerExchange
  3. Arquivo de Configuração DBMOVER
  4. Trabalhos Netport
  5. Logs de Mensagens do PowerExchange e Substituições de Destinos
  6. Log de estatísticas do SMF e Relatórios
  7. Segurança do PowerExchange
  8. Suporte a Secure Sockets Layer
  9. Segurança de Rede Alternativa do PowerExchange
  10. SQL Não Relacional do PowerExchange
  11. Globalização do PowerExchange
  12. Usando os Drivers ODBC do PowerExchange
  13. Tipos de Dados e Matriz de Conversão do PowerExchange
  14. Apêndice A: Carimbos de Data/Hora DTL__CAPXTIMESTAMP
  15. Apêndice B: Glossário do PowerExchange

Manual de Referência

Manual de Referência

Anterior Avançar

Instrução ADAPREFETCH

Instrução ADAPREFETCH

A instrução ADAPREFETCH controla se o PowerExchange usa o recurso de pré-busca do Adabas para melhorar o desempenho ao ler registros.
z/OS
Adabas
Não 
ADAPREFETCH={
N
|Y}
  • N
    .
    O PowerExchange não usa o recurso de pré-busca do Adabas quando lê registros.
  • Y.
     O PowerExchange usa o recurso de pré-busca do Adabas ao ler registros para melhorar o desempenho de leitura.
O padrão é N.
No UNIX e no Windows, o Adabas não permite o processamento de pré-busca com a interface ACBX. Se você estiver usando o ACBX em um desses sistemas, e ADAPREFETCH=Y, o PowerExchange reverterá para chamadas ACB, que não podem ler registros com mais de 32 KB. Se quiser usar o ACBX no UNIX ou no Windows, não especifique a instrução ADAPREFETCH=Y.