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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 TYPE or ITYPE Field
Setting the TYPE Field in X/Open Programs

Setting the TYPE Field in X/Open Programs

In X/Open mode, you must use the X/Open set of integer codes for the data type in the TYPE field.

If you use the ILENGTH, IDATA, or ITYPE fields in a SET DESCRIPTOR statement, a warning message appears. The warning indicates that these fields are not standard X/Open fields for a system-descriptor area.

For code that is easier to maintain, use the predefined constants for these X/Open SQL data types instead of their actual integer value. These constants are defined in the $INFORMIX/incl/public/sqlxtype.h header file.

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