different OPB tables

OPB_SUBJECT - PowerCenter folders table
OPB_MAPPING - Mappings table
OPB_TASK - Tasks table like sessions, workflow etc
TASK_TYPE for session is 68 and that of the workflow is 71.
OPB_SESSION - Session & Mapping linkage table
OPB_TASK_ATTR - Task attributes tables
OPB_WIDGET - Transformations table
Usage: Use WIDGET_ID from this table to that of the WIDGET_ID of any of the
tables to know the transformation name and the folder details. Use this table in
conjunction with OPB_WIDGET_ATTR or OPB_WIDGET_EXPR to know more about
each transformation etc.
OPB_WIDGET_FIELD - Transformation ports table
Usage: Take the FIELD_ID from this table and match it against the FIELD_ID of any
of the tables like OPB_WIDGET_DEP and you can get the corresponding information.
OPB_WIDGET_ATTR - Transformation properties table
Usage: Use the ATTR_ID of this table to that of the ATTR_ID of OPB_ATTR table to
find what each attribute in this transformation means.
OPB_EXPRESSION - Expressions table
Usage: Use this table in conjunction with OPB_WIDGET/OPB_WIDGET_INST and
OPB_WIDGET_EXPR to get the expressions in the Expression transformation for a
particular, mapping or a set.
OPB_ATTR - Attributes
You can get the ATTR_ID from this table and look it up against any of the tables where you can get
the attribute value. You should also make a note of the ATTR_TYPE,
OBJECT_TYPE_ID before you pick up the ATTR_ID. You can find the same ATTR_ID
in the table, but with different ATTR_TYPE or OBJECT_TYPE_ID.
OPB_COMPONENT - Session Component
Usage: Match the TASK_ID with that of the SESSION_ID in OPB_SESSION table to
get the SESSION_NAME and to get the shell command or batch command that is
there for the session, join this table with OPB_TASK_VAL_LIST table on TASK_ID.
OPB_CFG_ATTR - Session Configuration Attributes
This table stores the attribute values for Session Object configuration like "Save
Session log by", Session log path etc.

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