OPEN call
The OPEN call is used to explicitly open
a GSAM database.
Format
| Call Name | DB/DC | DBCTL | DCCTL | DB Batch | TM Batch | |
|---|---|---|---|---|---|---|
| For GSAM: | OPEN | X | X | X | X | X |
Parameters
- gsam pcb
- Specifies the GSAM PCB for the call. This parameter is an input and output parameter.
- aib
- Specifies the AIB for the call. This parameter is an input and
output parameter. These fields must be initialized in the AIB:
- AIBID
- Eye catcher. This 8-byte field must contain DFSAIBbb.
- AIBLEN
- AIB lengths. This field must contain the actual length of the AIB that the application program obtained.
- AIBRSNM1
- Resource name. This 8-byte, left-justified field must contain the PCB name of a GSAM PCB.
- AIBOALEN
- I/O area length. This field must contain the length of the I/O area specified in the call list.
- i/o area
- Specifies the kind of data set you are opening. This parameter is an input parameter.
Usage
For more information, see the topic "Explicit Open and Close Calls to GSAM" in IMS Version 15.4 Application Programming.