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Oracle Database 12c: shutdown transactional
by En el siguiente articulo se explicará el comportamiento de la operación "shutdown transactional" en la versión 12c de la base de datos Oracle. Como bien se sabe en 12c ahora tenemos involucradas 0 o...
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12c – SQL*Loader Express
by Um problema comum para os usuários do SQL*Loader é gerar o control file que a ferramenta utiliza para fazer a carga dos arquivos. Quanto mais campos existem no arquivo de dados, maior é a chance de...
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Disjunctive subquery
by Here it is a SQL query called from a .Net web service which is ”time outing” and to which I have been asked to bring a fix. SELECT d.col_id, d.col_no, d.col_dost_id,...
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12c – Grid Infrastructure Management Repository (MGMTDB)
by MGMTDB é uma nova instância, utilizada para guardar os dados do Cluster Health Monitor (CHM). Na versão 11G, estes dados eram armazenados em um banco Berkeley DB em $GRID_HOME/crf/db/hostname....
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Como efetuar backups utilizando RMAN no Oracle Database 12c
by Introdução: Atualmente temos encontrado nas comunidades Oracle e nos principais fóruns de discussão sobre o assunto Oracle Database 12c, inúmeros questionamentos sobre como realizar tarefas de...
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Recovering ASM disk header
by Hello everybody, I was looking for any good article in the web about how to backup and restore the ASM disk header but without success. There are many articles about “md_backup” and “md_restore” but...
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Oracle Exadata – I/O Resource Manager (IORM)
by Introduction: I/O Resource Manager (IORM) is an integral software component of the Oracle Exadata Storage Server and runs within the Cell Services (Cellsrv) on each Cell. Each Cell disk maintains an...
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Oracle Exadata Database Machine: Exadata Hybrid Columnar Compression (EHCC)
by Introduction: Exadata Storage Server includes Exadata Hybrid Columnar Compression feature. This option provides very high levels of data compression implemented inside the Exadata Storage Server....
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oracleasm – Instantiating disk: failed
by I was installing RAC 12cR1 on OEL 6.4, I had the packages intalled, I created the directories, users, group, all pre-tasks for installing. When I was configuring disks for ASM was receiving the...
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