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Doc ID 461911.1 Patch 6602742 Applies to: Oracle Database - Enterprise Edition - Version 10.2.0.3 and later Information in this document applies to an 阅读全文
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1 COALESCE 語法：COALESCE(expr1, expr2, ..., exprn) n>=2 作用：COALESCE returns the first non-null expr in the expression list. You must specify at leasttwo 阅读全文
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我這oracle版本為11.2.0.4，裝的GRID,所以在grid用戶下編輯sqlnet.ora 1.cd /grid/product/11.2.0/network/admin 2.編輯sqlnet.ora #开启ip限制功能tcp.validnode_checking=yes#允许访问数据库的I 阅读全文