## SESSIONS

### Definition

The SESSIONS system table describes the connection between an application and a database task.

### Structure

SESSIONS

SESSIONID | FIXED(10) | ID of the database session
OWN | CHAR(3) | Current database session (YES | NO)
SESSIONTYPE | CHAR(4) | Specification of the database instance type (OLTP | LVC) OLTP: database instance type OLTP LVC: SAP liveCache technology
ENCRYPTION | CHAR(3) | Specifies whether SSL is used for data encryption (SSL | NO) SSL: data encryption using SSL NO: no data encryption using SSL
STARTDATE | TIMESTAMP | Time at which database session started
APPLICATIONNODE | CHAR(64) | Name of the computer on which the application is running
APPLICATIONPROCESS | FIXED(10) | Operating system ID of the application
APPLICATIONTYPE | CHAR(3) | ID of the tool or interface that the application is using
USERNAME | CHAR(32) | Name of the database user
PEERPROCESSID | FIXED(10) | ID of the communication partner of the database task
CONNECTSTATE | CHAR(32) | Connection status
TASKID | FIXED(10) | ID of the database task
OMSHEAPUSEDSIZE | FIXED(20) | Memory consumption in the OMS heap (KB)
TRACE | CHAR(3) | A database trace is written for this database session/all database sessions (YES|NO).
CATALOGCACHEUSEDSIZE | FIXED(10) | Space used by the catalog cache assigned to the database session (KB)
USEDTEMPORARYSIZE | FIXED(10) | Space used for temporary information from your database session (KB)
PAGINGFILEUSEDSIZE | FIXED(10) | Size of the paging file in which information displaced from the catalog cache is written (KB)
SQLMODE | CHAR(8) | SQL mode of your database session (ANSI | DB2 | ORACLE | INTERNAL)
ISOLATIONLEVEL | FIXED(3) | Isolation level of your database session (0-3)
TIMEOUT | FIXED(10) | Timeout value for your database session
DATEFORMAT | CHAR(50) | Date and time format for your database session
DEFAULTCODE | CHAR(8) | Default value for the code attribute of the database session

See also:

Evaluating System Tables, SESSIONS

Documentation Concept of the Database System

Glossary, OMS Heap, SSL/TLS