DBA Corner

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Month: January 2007

  • Historical Oracle ANSI Join Limit: 1,050 Columns

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    This note refers to an old Oracle 10g issue in which very wide ANSI join queries could fail after internal query transformation. The reported threshold was roughly 1,050 projected columns, and some failures surfaced as ORA-01445. It should not be treated as a universal limit in current Oracle releases. Historical context The issue was associated…