Fetch-maximum-data-length is a four byte field that specifies the length in bytes of the move area, if any, allocated by the application.
| In this language... | The variable name for Fetch-maximum-data-length is... |
|---|---|
| COBOL | DBCAREA-FET-MAX-DATA-LEN |
| PL/I | FET_MAX_DATA_LEN |
| C, C++ | fet_max_data_len |
| IBM Assembler | DBFIFDL |
| This routine... | Does this for Fetch-maximum-data-length... |
|---|---|
| DBCHINI | writes |
| DBCHCL | reads (FET) |
| Fetch-maximum-data-length is used by... | To... |
|---|---|
| applications | write |
Review the following conditions before calling DBCHCL for any of the following functions:
- Connect
- RunStartUp
- Initiate with Protocol-Function
- Command
- Initiate Request
If an application is using Move Mode for processing the parcels in the response (that is, Locate-mode is set to N and Parcel-mode-fetch is set to Y in the DBCAREA), then the application must allocate the move area and place its length in Fetch-maximum-data-length.
| If Maximum Data Length is set to... | Then the largest parcel body is... |
|---|---|
| O | 32763 |
| H | 2,147,483,639 |
Whether Variable-length-fetch is set to N or Y, the length of the move area must be large enough for the largest parcel body. If Variable-length-fetch is set to Y, two more bytes are required for the preceding length field.