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SQL programmingYou can use the HCL OneDB™ implementation of the SQL language to develop applications for HCL OneDB™ database servers.
Guide to SQL: SyntaxThe HCL OneDB™ Guide to SQL: Syntax describes the syntax of the statements, data types, expressions, operators, and built-in functions of the HCL OneDB™ dialect of the SQL language.
Other syntax segmentsThese topics describe syntax segments, which are language elements, such as database object names or optimizer directives, that appear as a subdiagram reference in the syntax diagrams of some SQL or SPL statements.
Routine modifier A routine modifier specifies characteristics of how a user-defined routine (UDR) behaves.
Modifier Descriptions
SELCONST (C)Use the SELCONST modifier to specify the selectivity of a UDR. The selectivity of the UDR is an estimate of the fraction of the rows that the query will select.

SELCONST (C)

Use the SELCONST modifier to specify the selectivity of a UDR. The selectivity of the UDR is an estimate of the fraction of the rows that the query will select.

The value of selectivity constant, selconst, is a floating-point number between 0 and 1 that represents the fraction of the rows for which you expect the UDR to return TRUE.