Rules for Coding Host Variables in Assembler

When you code host variable declarations, you must comply with the following requirements:

Cannot be longer than 32,765 bytes.
Indicator variables must be declared as a halfword with implied or explicit length of two.
You may declare structures of fields. Only elementary level fields can be referenced as host variables.
Definitions may be defined in SQL INCLUDE directives.
Host and indicator fields must have a duplication factor of one, explicit or implied.
Fixed format is not required.
All eligible field definition statements must have a name entry. Use of the prefix SQL should be avoided.
The operation entry can be either a DS or DC.
The operand entry must define a single field with the exception noted below.

Operand Subfields

The operand subfields:

The duplication factor must be 1, regardless of whether it is explicitly specified.
Valid types are listed below with the corresponding SQL type.
Modifier use is limited primarily to length. Where the explicit length is specified and a nominal value is given, the explicit length takes precedence.
Nominal values can be used to calculate length implicitly where no length modifier is given. A nominal value may be scanned to determine the number of decimal places.