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You can query the value of the COUNT field and the fields of individual item descriptors with GET DESCRIPTOR.
To query an item, enter the number of the item descriptor and the fields whose values you wish to query. The item descriptor fields are described in section “Descriptor area fields”.
When transferring a value from an item descriptor field to a host variable, the SQL data type of the host variable must satisfy the conditions described for GET DESCRIPTOR on "GET DESCRIPTOR - Read SQL descriptor area" and in the section “Transferring values between host variables and a descriptor area”.