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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.
Data types and expressionsThese topics describe the data types and expressions that HCL OneDB™supports.
Expression
Aggregate Expressions
SUM Function

SUM Function

The SUM function returns the sum of all the values in the specified column or expression, as the following example shows:

SELECT SUM(total_price) FROM items WHERE order_num = 1013;

If you include the DISTINCT or UNIQUE keyword, the returned sum is for only distinct values in the column or expression:

SELECT SUM(DISTINCT total_price) FROM items WHERE order_num = 1013;

NULL values are ignored unless every value in the column is NULL. If every column value is NULL, the SUM function returns a NULL for that column. You cannot use the SUM function with a non-numeric column.