DBMS_TTS

176 DBMS_TTS

The DBMS_TTS package checks if the transportable set is self-contained. All violations are inserted into a temporary table that can be selected from the view TRANSPORT_SET_VIOLATIONS.

This chapter contains the following topics:

176.1 DBMS_TTS Security Model

Only users having the execute_catalog_role can execute this procedure. This role is initially only assigned to user SYS.

176.2 DBMS_TTS Exceptions

The DBMS_TTS package creates exceptions for missing or invalid transportable tablespaces.

ts_not_found  EXCEPTION;
PRAGMA exception_init(ts_not_found, -29304);
ts_not_found_num NUMBER := -29304;
 
invalid_ts_list  EXCEPTION;
PRAGMA exception_init(invalid_ts_list, -29346);
invalid_ts_list_num NUMBER := -29346;

sys_or_tmp_ts     EXCEPTION; 
PRAGMA exception_init(sys_or_tmp_ts, -29351); 
sys_or_tmp_ts_num NUMBER := -29351;

176.3 DBMS_TTS Operational Notes

With respect to transportable tablespaces, disabled and enabled referential integrity constraints are handled differently.

A disabled referential integrity constraint does not violate the transportability rules and is dropped during the import phase.
An enabled referential integrity constraint violates the transportability rules if it references a table in a tablespace outside the transportable set.

176.4 Summary of DBMS_TTS Subprograms

The two procedures listed in the table are designed to be called by database administrators.

Table 176-1 DBMS_TTS Package Subprograms

Subprogram	Description
DOWNGRADE Procedure	Downgrades transportable tablespace-related data
TRANSPORT_SET_CHECK Procedure	Checks if a set of tablespaces (to be transported) is self-contained

176.4.1 DOWNGRADE Procedure

This procedure downgrades transportable tablespace related data.

Syntax

DBMS_TTS.DOWNGRADE;

176.4.2 TRANSPORT_SET_CHECK Procedure

This procedure checks if a set of tablespaces (to be transported) is self-contained. After calling this procedure, the user may select from a view to see a list of violations, if there are any.

Syntax

DBMS_TTS.TRANSPORT_SET_CHECK (
   ts_list          IN CLOB, 
   incl_constraints IN BOOLEAN DEFAULT FALSE,
   full_check       IN BOOLEAN DEFAULT FALSE);

Parameters

Table 176-2 TRANSPORT_SET_CHECK Procedure Parameters

Parameter	Description
`ts_list`	List of one or more tablespaces, separated by comma.
`incl_constraints`	`TRUE` if you want to count in referential integrity constraints when examining if the set of tablespaces is self-contained. (The `incl_constraints` parameter is a default so that `TRANSPORT_SET_CHECK` will work if it is called with only the `ts_list` argument.)
`full_check`	Indicates whether a full or partial dependency check is required. If `TRUE,` treats all `IN` and `OUT` pointers (dependencies) and captures them as violations if they are not self-contained in the transportable set. The parameter should be set to `TRUE` for TSPITR or if a strict version of transportable is desired. By default the parameter is set to `FALSE`. It will only consider `OUT` pointers as violations.

Examples

If the view does not return any rows, then the set of tablespaces is self-contained. For example,

SQLPLUS> EXECUTE DBMS_TTS.TRANSPORT_SET_CHECK('foo,bar', TRUE);
SQLPLUS> SELECT * FROM TRANSPORT_SET_VIOLATIONS;