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  • PowerExchange for CDC and Mainframe 10.5.4
  • 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. Metadados DTLDESCRIBE
  12. Globalização do PowerExchange
  13. Usando os Drivers ODBC do PowerExchange
  14. Tipos de Dados e Matriz de Conversão do PowerExchange
  15. Apêndice A: Carimbos de Data/Hora DTL__CAPXTIMESTAMP
  16. Apêndice B: Glossário do PowerExchange

Manual de Referência

Manual de Referência

Anterior Avançar

Recuperação de Informações de Chaves Externas DTLDESCRIBE FKEYS

Recuperação de Informações de Chaves Externas DTLDESCRIBE FKEYS

Exemplo 1:
Dada uma tabela, encontre todas as chaves externas definidas nessa tabela.
A tabela MFERNANDEZ.T2 tem duas chaves externas.
(FK21) a T1 da coluna T21 a T11 com a regra de UPDATE RESTRICT e a regra de DELETE = DELETE
e
(FK23) a T3 das colunas T22,T23 a T31,T32 com a regra de UPDATE NOACTION e a regra de DELETE = NOACTION
DTLDESCRIBE fkeys,,,,mfernandez,,t2
Resultado do Exemplo 1:
 
MFERNANDEZ||T1|T11|MFERNANDEZ||T2|T21|1|RESTRICT|RESTRICT|FK21|SQL010827171053710|
MFERNANDEZ||T3|T31|MFERNANDEZ||T2|T22|1|NO ACTION|NO ACTION|FK23|PK3|
MFERNANDEZ||T3|T32|MFERNANDEZ||T2|T23|2|NO ACTION|NO ACTION|FK23|PK3|
Exemplo 2:
Dada uma "tabela pai", encontre todas as chaves externas que apontam para essa tabela
DTLDESCRIBE fkeys,mfernandez,,t1
Resultado do Exemplo 2:
 
MFERNANDEZ||T1|T11|MFERNANDEZ||T2|T21|1|RESTRICT|RESTRICT|FK21|SQL010827171053710|
É válido para consulta nas tabelas pai e externa, conforme mostrado a seguir.
DTLDESCRIBE fkeys,mfernandez,,t*,mfernandez,,q*