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Decimal precision in Cognos 10: why is precision sometimes limited to 15 digits?

Troubleshooting


Problem

For databases that support large-precision decimal values, Cognos 10 only supports up-to the precision of double-precision floating point values, or the equivalent of 15 significant digits. Digits beyond this will be rounded in some but not necessarily all cases, depending upon the database used, and the structure of the report.

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Historical Number

1015504

Document Information

Modified date:
13 January 2026

UID

swg21335843