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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.
SQL statementsThis chapter describes the syntax and semantics of SQL statements that are recognized by HCL OneDB™.
SET DESCRIPTOR statementUse the SET DESCRIPTOR statement to set values in a system-descriptor area (SDA).
Item Descriptor
Setting the INDICATOR Field

Setting the INDICATOR Field

If you want to put a NULL value into the system-descriptor area, set the INDICATOR field to -1 and do not set the DATA field.

If you set the INDICATOR field to 0 to indicate that the data is not NULL, you must set the DATA field.