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F_LOG10

input/output-compatibility to ib_udf

input/output-compatibility to rFunc (LOG10)

Entrypoint f_log10 compatible with UTF-8

Inputs/Outputs

   Input      DOUBLE     floatingpoint
   Output     DOUBLE     logarithms of a floatingpoint with basis 10

Syntax

   TestSQL
   SELECT 0.301029995663981 AS ISCORRECT, F_LOG10(2) FROM RDB$DATABASE;
   SELECT NULL AS ISCORRECT, F_LOG10(NULL) FROM RDB$DATABASE;