| Firebird Documentation Index → Firebird 2.5 Language Ref. Update → Internal functions → LOG10() |
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Find a more recent version at Firebird 5.0 Language Reference: LOG10()
Available in: DSQL, PSQL
Added in: 2.1
Changed in: 2.5
Description: Returns the 10-based logarithm of the argument.
Result type: DOUBLE PRECISION
Syntax:
LOG10 (number)
An error is raised if the argument is negative or 0. (In versions prior to 2.5, such values would result in
NaNand -INF, respectively.)
If the external function
LOG10 is declared in your database, it will override the
internal function. To make the internal function available, DROP or ALTER the external
function (UDF).
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| Firebird Documentation Index → Firebird 2.5 Language Ref. Update → Internal functions → LOG10() |