SQL data types specific to Informix®
The SQL data types specific to HCL Informix® are available to a column in the Informix® database.
The Informix® Guide to SQL: Reference describes these data types. If you do not include the -xopen option when you compile your Informix® ESQL/C program, the DESCRIBE statement uses these data types to specify the data type of a column or the return value of a user-defined function. Constants for these Informix® SQL data types are defined in the Informix® ESQL/C sqltypes.h header file.
For a complete list of constants for SQL data types, see Constants for Informix SQL column data types. The integer values in Some Informix SQL data type constants are language-independent constants; they are the same in all HCL Informix® embedded products.