Commands

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# Commands

This document provides a detailed description of each Adabas command arranged in alphabetical order by command code.

The information is organized under the following headings:

Command Code | Summary | Description
--- | --- | ---
A1 | Update record | Update record(s) (hold option)
BT | Backout transaction | Remove database updates for ET logic users
C1 | Write checkpoint | Write command ID, PLOG, RABN RABN checkpoint, buffer flush option
C3 | Write SYNX-03 checkpoint | Write SYNX-03 checkpoint for exclusive control update users; option to store user data
C5 | Write user data to protection log | Write user data on SIBA/PLOG
CL | Close user session | End ET session and update database
E1 | Delete record / refresh file | Delete record (hold option) or refresh file
ET | End transaction | End and save current transaction
HI | Hold record | Prevent record update by other users
L1 | Read record | Read record of specified ISN
L2 | Read physical sequential record | Read records in physical order
L3 | Read logical sequential record | Read records in descriptor value order
L4 | Read and hold record | Read record and hold, "wait for held record/issue return code" option
L5 | Read physical sequential record and hold | Read records in physical order and hold, "wait/issue return code" option
L6 | Read logical sequential record and hold | Read records in descriptor value order with "wait/issue return code" option
L9 | Read descriptor values | Read the values of a specified descriptor
LF | Read field definition | Read the characteristics of all fields in a file
N1 | Add record with Adabas-assigned ISN | Add new database record with ISN assigned by Adabas
N2 | Add record with user-assigned ISN | Add new database record with user-assigned ISN
OP | Open user session | Open user session
RC | Release command ID or global format ID | Release one or more command IDs or a global format ID for the issuing user
RE | Read ET user data | Read ET data for this, another, or all users
RI | Release held record and ISN | Release held record and ISN
S1 | Find records | Return count and ISNs of records satisfying the search criterion
S2 | Find records in user-specified order | Return count of records and ISNs in user-specified order
S4 | Find records and hold | Return count and ISNs of records satisfying the search criterion and put first ISN in list on hold
S5 | Find coupled ISNs | Return or save a list of coupled ISNs for the specified file
S8 | Process ISN lists | Combine two ISN lists from the same file with an AND, OR, or NOT operation
S9 | Sort ISN lists | Sort ISN list in ascending ISN or descriptor-specified sequence

Adabas includes some V* and Y* commands, which you may see mentioned in Adabas shutdown statistics or in Adabas Online System (AOS) screens. These commands are used internally by Adabas and Adabas add-on products and should not be used in direct calls in your applications. Should you use them, errors will result.